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Order Number:	EK-DEFCN-IN
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DECconcentrator 500

Installation

Order Number: EK-DEFCN-IN-004

CAUTION
People installing the cabling system described in this manual should know local building
codes, fire codes, and any other applicable codes or regulations. The manufacturers or their
distributors and agents will not be responsible for damage due to improperly installed
cabling, neglect, misuse, or improper connection of devices to the cabling system.

CAUTION
This equipment is in the 1st Class category (information equipment to be used in
commercial and/or industrial areas) and conforms to the standards set by the Voluntary
Control Council For Interference by Data Processing Equipment and Electronic Office
Machines aimed at preventing radio interference in commercial and/or industrial
areas. Consequently, when used in a residential area or in an adjacent area thereto,
radio interference may be caused in radios and TV receivers etc. Read the instructions
for correct handling.

NOTICE – Class A Computing Device:
This equipment generates, uses, and may emit radio frequency energy. The equipment has
been type tested and found to comply with the limits for a Class A computing device
pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable
protection against such radio frequency interference when operated in a commercial
environment. Operation of this equipment in a residential area may cause interference; in
which case, measures taken to correct the interference are at the user’s expense.

NOTICE – Class 1 Laser Device:
The lasers in this equipment are Class 1 devices, compliant with CDRH Rules 21, CFR
Subchapter J, Part 1040.10, at date of manufacture. Class 1 laser devices are not
considered to be hazardous.

DECconcentrator 500

Installation

December 1991
This manual describes how to install and verify the operation of
the DECconcentrator 500 unit. Refer to the specific option card
installation manual to install your option card.
Supersession/Update Information:

Order Number: EK-DEFCN-IN-004

This is a revised manual.

EK-DEFCN-IN-004
December 1991

The information in this document is subject to change without notice and should not be construed as a
commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document.
Copyright  1991 by Digital Equipment Corporation
All Rights Reserved.
Printed in U.S.A.
The following are trademarks of Digital Equipment Corporation:
DEC
DECbridge
DECconcentrator
DECconnect

DECdirect
DECelms
DEC FDDIcontroller
DECmcc

DECstation
Scholar
The Digital logo
VT

This manual was produced by Telecommunications and Networks Publications.

Contents
Safety

Preface

Introducing the DECconcentrator 500
1.1
1.1.1
1.1.2
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5
1.5.1
1.6

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Out-of-Band Management . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optical Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controller/Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Card Cage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Option Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Option Card Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operational Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–1
1–2
1–2
1–2
1–2
1–3
1–3
1–3
1–3
1–4
1–6
1–7

Preparing for Installation
2.1
2.2

Checking the Shipment Contents . . . . . . . . . . . . . . . . . . . . . . . .
Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1
2–5

iii

2.3

Installing the Desktop DECconcentrator 500 . . . . . . . . . . . . . . .
Installing the Rackmount DECconcentrator 500 . . . . . . . . . . . .
Installing the Rackmount Brackets . . . . . . . . . . . . . . . . . . . . .
Preparing the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Concentrator in a Rack . . . . . . . . . . . . . . . . . . .
Installing the Option Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Cables and Connectors . . . . . . . . . . . . . . . . . . . . . .

3–2
3–4
3–5
3–6
3–7
3–8
3–8
3–11

Using Out-of-Band Management
4.1
4.2
4.3
4.4
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
4.4.8
4.4.9
4.4.10
4.5
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5

2–6

Installing the DECconcentrator 500
3.1
3.2
3.2.1
3.2.2
3.2.3
3.3
3.4
3.5

Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting OBM Directly to a Terminal . . . . . . . . . . . . . . . . . .
Connecting OBM through a Modem to a Terminal . . . . . . . . . .
Displaying the Show Menu Option . . . . . . . . . . . . . . . . . . . . . .
Displaying the Show Device Status Option . . . . . . . . . . . . . .
Displaying the Show Device Characteristics Option . . . . . . .
Displaying the Show Device Counters Option . . . . . . . . . . . .
Displaying the Show Line Status Option . . . . . . . . . . . . . . . .
Displaying the Show Line Characteristics Option . . . . . . . . .
Displaying the Show Line Counters Option . . . . . . . . . . . . . .
Displaying the Show PHY Option . . . . . . . . . . . . . . . . . . . . .
Displaying the Show PHY Status Option . . . . . . . . . . . . . . . .
Displaying the Show PHY Characteristics Option . . . . . . . . .
Displaying the Show PHY Counters Option . . . . . . . . . . . . .
Displaying the Set Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the IP Address Option . . . . . . . . . . . . . . . . . . . . . .
Selecting Gateway Address Option . . . . . . . . . . . . . . . . . . . .
Selecting the Requested TRT Option . . . . . . . . . . . . . . . . . . .
Selecting the LEM Threshold Option . . . . . . . . . . . . . . . . . .
Selecting the TVX Option . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–1
4–2
4–2
4–6
4–8
4–9
4–10
4–11
4–12
4–14
4–16
4–17
4–18
4–19
4–20
4–20
4–21
4–21
4–21
4–21

4.5.6
4.5.7
4.5.8
4.5.9
4.5.10
4.6
4.7
4.8
4.9
4.10

4–21
4–21
4–22
4–23
4–23
4–23
4–23
4–24
4–24
4–24

Problem Solving
5.1
5.2
5.3
5.4
5.4.1
5.5

Selecting the Update Switch Option . . . . . . . . . . . . . . . . . . . .
Selecting the Ring Purger Enable Option . . . . . . . . . . . . . . . .
Selecting the Password Option . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Defaults and Reset Option . . . . . . . . . . . . . . . .
Selecting the Restricted Token Timeout Option . . . . . . . . . . .
Selecting the Enable PHY Option . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Disable PHY Option . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Add Trap Address Option . . . . . . . . . . . . . . . . . . .
Selecting the Remove Trap Address Option . . . . . . . . . . . . . . . .
Selecting the Reset Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Problem-Solving Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running the Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosing Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optical Bypass Problem Solving . . . . . . . . . . . . . . . . . . . . . .
Loopback Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5–1
5–1
5–3
5–4
5–6
5–7

Specifications
A.1
A.2
A.3
A.4

Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .

DECconcentrator 500 Identification List

Related Documents

A–1
A–2
A–3
A–4

Glossary

Index

Figures
1–1
2–1
2–2
2–3
3–1
3–2
3–3
3–4
3–5
3–6
4–1
B–1

DECconcentrator 500 Controls and Indicators . . . . . . . . . . . . . .
Checking the Shipping Contents . . . . . . . . . . . . . . . . . . . . . . . . .
U.S. and International Power Cords . . . . . . . . . . . . . . . . . . . . . .
DECconcentrator Model and Serial Numbers . . . . . . . . . . . . . .
Removing the Plastic Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparing the Unit for Installation in the Rack . . . . . . . . . . . . . .
Preparing the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Unit in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the Operational Status . . . . . . . . . . . . . . . . . . . . . . . . .
Using a Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DECconcentrator 500 Identification List . . . . . . . . . . . . . . . . . .

1–4
2–2
2–3
2–4
3–3
3–5
3–6
3–7
3–9
3–10
4–3
B–2

DECconcentrator 500 Controls . . . . . . . . . . . . . . . . . . . . . . . . .
DECconcentrator 500 Indicators . . . . . . . . . . . . . . . . . . . . . . . .
Option Card Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
International Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sample Cable Plant Log-Book Entry . . . . . . . . . . . . . . . . . . . . .
Basic Problem Solving by Symptom . . . . . . . . . . . . . . . . . . . . .
Network Management Card Problem Solving . . . . . . . . . . . . . .
Optical Bypass Relay Problem Solving . . . . . . . . . . . . . . . . . . .
Port Card Problem Solving . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Problem Solving During Loopback Testing . . . . . . . . . . . . . . . .
Rackmount Unit Physical Specifications . . . . . . . . . . . . . . . . . .
Tabletop Unit Physical Specifications (Plastic Enclosure) . . . . .

1–5
1–5
1–6
2–4
2–5
5–4
5–5
5–6
5–7
5–8
A–1
A–1

Tables
1–1
1–2
1–3
2–1
2–2
5–1
5–2
5–3
5–4
5–5
A–1
A–2

A–3
A–4
A–5

Operating Environment Specifications . . . . . . . . . . . . . . . . . . . .
Shipping Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–2
A–3
A–3

Displaying the Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Entity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Subgroup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Show Device Status . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Show Device Characteristics . . . . . . . . . . . . . . . . . .
Displaying Show Device Counters . . . . . . . . . . . . . . . . . . . . . . .
Displaying Show Line Status . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Show Line Characteristics . . . . . . . . . . . . . . . . . . . .
Displaying Show Line Characteristics (Cont.) . . . . . . . . . . . . . .
Displaying Show Line Counters . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Show Line Counters (Cont.) . . . . . . . . . . . . . . . . . . .
Displaying Show PHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Show PHY Status . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Show PHY Characteristics . . . . . . . . . . . . . . . . . . . .
Displaying Show PHY Counters . . . . . . . . . . . . . . . . . . . . . . . .
Displaying the Set Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–5
4–6
4–7
4–8
4–9
4–10
4–11
4–12
4–13
4–14
4–15
4–16
4–17
4–18
4–19
4–20

Examples
4–1
4–2
4–3
4–4
4–5
4–6
4–7
4–8
4–9
4–10
4–11
4–12
4–13
4–14
4–15
4–16

vii

Safety

Warnings and cautions that appear in this manual are defined as follows:
WARNING

Contains information to prevent personal injury.

CAUTION

Contains information to prevent damage to equipment.

VORSICHT

Enthält Informationen, die beachtet werden müssen, um
den Benutzer vor Schaden zu bewahren.

ACHTUNG

Enthält Informationen, die beachtet werden müssen, um
die Geräte vor Schaden zu bewahren.

DANGER

Signale les informations destinées à prévenir les accidents
corporels.

ATTENTION

Signale les informations destinées à prévenir la détérioration
du matériel.

AVISO

Contiene información para evitar daños personales.

PRECAUCION

Contiene información para evitar daños al equipo.

The warnings and cautions you must observe for the hardware described in this manual
are listed below in English, German, French, and Spanish. The pages on which these safety messages appear are also listed.

CAUTION

Static electricity can damage modules and electronic components. Digital recommends you use a grounded wrist
strap and grounded work surface (P/N 29-11762) when you
handle any modules or internal parts.
(Pages 2-1, 3-2)

ACHTUNG

Module und elektronische Komponenten können durch
elektrostatische Entladungen beschädigt werden. Benutzen
Sie immer eine antistatische Gelenkmans chette und eine
geerdete Arbeitsunterlage, wenn Sie am offenenGerät
arbeiten in Antistatik-Kit ist in der BRD bei DECdirekt
unter der Bestellnummer 29-26246 erhältlich.

ATTENTION

Les charges excessives d’électricité statique peuvent endommager les modules et les composants électroniques.
Digital conseille l’utilisation d’un bracelet de masse et
d’un plan de travail mis à la terre (Réf. 29-11762) lors de
la manipulation des modules et des composants internes.

PRECAUCION

La electricidad estática puede dañar los componentes
electrónicosy los módulos. Digital recomienda que se utilicen cintas de pasadores y superficies de trabajo conectadas a tierra (P/N 29-11762) al trabajar con cualquier
módulo oparte interna.

WARNING

For continued protection against risk of electric shock, this
product must be connected to a three-wire wall receptacle that
has its grounding terminal reliably connected to the building’s
safety earth ground. (Pages 2-3, 3-8)

VORSICHT

Um optimale Sicherheit zu gewährleisten, dürfen Sie es nur
an eine ordnungsgemäß geerdete Schuko-Steckdose anschließen.

DANGER

Afin d’assurer une protection efficace contre tout risque
d’électrocution,cet équipement doit être raccordé à une prise
secteur équipée d’un contact de mise à la terre effectivement
relié à la terre secteur du bâtiment.

AVISO

Para evitar el riesgo continuado de descargas eléctricas,
este producto debe conectarse en una toma de pared trifásica que tenga un terminal de tierra con una conexión fiable a
la toma de tierra del edificio.

CAUTION

Do not reinstall the cover screws into the concentrator’s
metal chassis without the cover. This could damage the
concentrator. (Page 3-2)

ACHTUNG

Der Kabelkonzentrator kann beschädigt werden, wenn Sie
die Gehäuseschrauben am Metallgehäuse für den Kabel
konzentrator befestigen.

ATTENTION

Ne remontez pas les vis du capots sur le châssis métallique du concentrateur decâbles. Ceci pourrait endommager
le concentrateur.

PRECAUCION

No hay que volver a instalar los tornillos de la cubierta
en el chasis de metal del concentrador del cableado,
porque al hacerlo se podría dañar éste.

WARNING

The DECconcentrator 500 contains no user-serviceable
parts. During installation do not open the unit for any reason. If
the concentrator needs repair, only qualified personnel familiar with safety procedures for electrical equipment and the
DECconcentrator 500 should access components inside the
unit. (Pages 3-1, 5-2)

VORSICHT

Die DECconcentrator 500 enhält keinerlei Teile, die der Benutzer warten könnte. Während der Installation sollte das
Gerätauf keinen Fall geöffnet werden. Reparaturen jeglicher
Art an der DECconcentrator 500 dürfen nur von elektrotechnisch qualifiziertem Wartungspersonal ausgeführt werden.

DANGER

Le DECconcentrator 500 ne comporte aucun élément remplaçablepar l’utilisateur. Cet appareil ne doit en aucun cas
être ouvert, y compris lors de l’installation. Les opérations
d’entretien et de réparation doivent impérativement être effectuéespar des techniciens qualifiés.

AVISO

El DECconcentrator 500 contiene componentes que no
pueden ser manejados por el usuario. Durante lainstalación,
la unidad no debe abrirse bajo ningún concepto. Si el puente
necesita una reparación de alguno de los componentes internos de la unidad, sólo podrá llevarla a cabo personal especializado y familiarizado con los procedimientos de seguridad de los equipos eléctricos y del DECconcentrator 500.

xii

WARNING

To avoid bodily injury or damage to the equipment, do not connect the power cord or any other cable until you are instructed
to do so in these procedures.
Do not apply power to the unit unless all covers are installed.
(Page 3-1)

VORSICHT

SchließenSie das Netzkabel oder andere Kabel erst an,
wenn Sie dazuqaufge fordert werden. Andernfalls besteht
LEBENSGEFAHR!Überdiesk önnen die Geräte Schaden nehmen.
Schließen Sie das Gerät erst an das Stromnetz an, wenn alle
Ab deckungen ord nungsgemäß angebracht worden sind.

DANGER

Afin d’éviter tout risque d’accident corporel ou matériel, N EBRANCHEZAUCUN cordon d’alimentation ou autre câble
sans en avoir reçu l’instruction explicite dans la procédure.
Ne reliez au secteur qu’après l’installation complète de tous
les capots.

AVISO

Para evitar daños internos al equipo, NO conectar el cabledealimentación ni ningún otro hasta que se indique en estos
procedimientos.

xiii

CAUTION

To prevent damage to electronic components, do not exceed 50° C (122° F) ambient temperature at the air intake
of the DECconcentrator 500. (Pages 3-2, A-2)

ACHTUNG

Um Schäden an den elektronischen Bauteilen zu vermeiden, darf die Umge bungstemperatur an den Lüftungsschlitzen des Konzentrators 50 Grad Celsius nicht überschreiten.

ATTENTION

Afin de ne pas endommager les composants électroniques, assurez-vous que la température ambiante n’excède
pas 50C à la prise d’air du DECconcentrator 500.

PRECAUCION

Para evitar daños a los componentes electrónicos, no sobrepasar 50 grados centígrados (122 grados Farenheit)
de temperatura ambiente en la toma de aire del DEConcentrator 500.

The air inside an enclosed rack can be hotter than the ambient room temperature. Make sure that the air entering the
DECconcentrator 500 does not exceed the maximum intake
temperature of 50° C (122° F). (Page 3-4)

CAUTION

ACHTUNG

Die Lufttemperatur im Gehäuse kann beträchtlich höher sein
als die umgebende Raumtemperatur. Achten Sie darauf,
daßdie maximale Einlaßtemperatur für den
DECconcentrator 500 nicht höher als 50 Grad Celsius ist.

ATTENTION

La température de l’air circulant à l’intérieur d’une baie
fermée peut être supérieure à celle de la pièce. Assurez-vous que la température à la prise d’air du DECconcentrator 500 n’excède pas 50C.

PRECAUCION

El aire dentro de un compartimento cerrado puede ser
máscaliente que la temperatura ambiente. Es importante
comprobar que el aire que entra en el DECconcentrator
500 no sobrepasa la temperatura de toma de 50 grados
C (122 grados F).

xiv

WARNING

To avoid bodily injury, use care when connecting the concentrator power cord. Regulations in some countries may require
an authorized person to connect the power.
Make sure you connect the power cord to a grounded wall
outlet. (Page 3-8)

VORSICHT

Netzspannung ist lebensgefährlich. Beachten Sie dies, wenn
Sie das Netzkabel anschließen. In einigen Ländern dürfen
Elektrogerätenur von entsprechend ausgebildetem Personal, beispielsweise Elektrikern, angeschlossen werden.
PrüfenSie, ob das in Ihrem Land zutrifft.
Schließen Sie das Netzkabel nur an eine geerdete Steckdosean.

DANGER

Afin d’éviter tout risque d’accident corporel, agissez avec la
plus grande précaution lors du raccordement du cordon d’alimentation du concentrateur. Assurez-vous que la législation
vous autorise bien à effectuer ce branchement.
Assurez-vous que la prise sur laquelle vous raccordez le cor
don d’alimentation est effectivementreliée à la terre.

AVISO

Para evitar daños generales, es importante tener cuidado a
la hora de conectar el cable de alimentación del concentrador. En algunos países existen estipula ciones para que la
conexiónla tenga que hacer una persona autorizada.
Hay que comprobar que se conecta el cable de alimentación a
una toma conectada a tierra.

WARNING

Some fiber optic equipment can emit laser light that can injure
your eyes. Never look into an optical fiber or connector port.
Always assume the cable is connected to a light source.
(Page 5–7)

VORSICHT

Schauen Sie niemals direkt in ein Glasfaserkabel oder einen Glasfaseranschluß. Die Laserstrahlen in faser-optischen
Geräten können Augenverletzungen verursachen.

DANGER

Certains équipements utilisant les fibres optiques peuvent
émettre des rayonne-ment laser dangereux pour les yeux.
Ne vous avisez jamais de regarder par l’extrémité d’une fibre
optique ou dans l’ouverture d’un connecteur. Considérez
toujours que le câble est relié à une source lumineuse.

AVISO

Algunos equipos de fibra óptica pueden emitir luz láser que
dañalos ojos. No sedebe mirar en una puerta de conector o
fibra óptica. Siempre se debe suponer que el cable está conectado a la luz.

WARNING

Always remove the power cord from the concentrator and ac
source when performing any removal or installation procedures. (Page 5-2)

VORSICHT

Bevor Sie Teile entfernen oder ersetzen, müssen Sie immer
zuerst das Netzkabel aus der Wandsteckdose und anschließendaus der Netzbuchse am Konzentrator ziehen.

DANGER

Assurez-vous toujours que le cordon d’alimentation est
débranch é du concentrateur et du secteur lors des
procéduresde dépose et pose de composants.

AVISO

Desconectar siempre el cable de alimentación del concentrador y de la toma de corriente alterna al realizar cualquier
procedimiento desustitución.

xvi

Preface

This manual explains how to install the DECconcentrator 500 unit and how to check
its installation and operation. This manual also includes descriptions of the concentrator controls and indicators.
Intended Audience
This manual is intended for the hardware installer and system/network manager who
is familiar with fiber optic network technologies, the Fiber Distributed Data Interface (FDDI) ANSI X3T9 standards, and safety procedures.
Document Structure
This document has five chapters and three appendixes, as follows:
Chapter 1

Describes the DECconcentrator 500 unit and its controls
and indicators.

Chapter 2

Describes the contents of the DECconcentrator 500
shipment and contains site-preparation information.

Chapter 3

Describes the installation procedures to install the
DECconcentrator 500. It also explains how to verify the
operational status of the unit.

Chapter 4

Describes how to access and display the out-of-band management menu options.

Chapter 5

Describes the procedures to solve problems that may occur
during installation of the DECconcentrator 500.

xvii

Appendix A

Contains the DECconcentrator 500 physical, environmental, operating, electrical, and power supply specifications.

Appendix B

Contains the DECconcentrator 500 Identification List.

Appendix C

Lists related documents.

Conventions Used in This Manual
This manual users the following conventions:
Convention

Meaning

Concentrator, unit

The DECconcentrator 500.
Press the specified key. For example, RET
means that you should press the RETURN key.

key

Hold down the CONTROL key and press the Z
key.

SHIFT -

Hold down the SHIFT key and press the tilde
key.

CTRL

Press the backspace/delete key.

The postage-paid Reader’s Comments form on the last page of this document requests your evaluation of this document to help us prepare future documentation.

xviii

DECconcentrator 500 Installation

1
Introducing the DECconcentrator 500

This chapter provides an overview and physical description of the DECconcentrator
500.

1.1 Product Overview
The DECconcentrator 500 is an American National Standards Institute (ANSI)
X3T9-compliant physical layer device for use in a Fiber Distributed Data Interface
(FDDI) network. The concentrator provides flexible application of FDDI to accommodate the diverse building wiring schemes at customer sites. The concentrator is
the key component in the Digital dual ring of trees topology. It supports
building and campus wiring topologies through the creation of hierarchical trees.
The concentrator is an active device and, in its simplest form, is a multiport physical
layer repeater. It decodes, retimes, and, if necessary, modifies the repeated data
stream.
1.1.1 Out-of-Band Management

The DECconcentrator 500 has a 25-pin D-subminiature connector on the input/output (I/O) panel. You can connect a terminal directly to the 25-pin D-subminiature
connector. You can also connect to a terminal through a Scholar modem (or equivalent).
Out-of-band management (OBM) allows you to manage the concentrator with or
without a Network Management Card. OBM does not require any special management station or software other than a terminal.

1–1

1.1.2 Optical Bypass

The multimode Network Management Card has an RJ12 connector to provide signals for an optical bypass switch. This switch maintains connectivity of the FDDI
dual ring in the absence of power or during fault conditions of a node. Refer to the
Fiber Distributed Data Interface Network Configuration Guidelines manual for a
complete description of the optical bypass switch.

1.2 Location
You can install the DECconcentrator in a standalone configuration or in an extended
local area network (LAN). You can place and use the DECconcentrator 500 in a main
distribution frame (MDF), intermediate distribution frame (IDF), horizontal distribution frame (HDF), office distribution frame (ODF), satellite distribution frame
(SDF), open office environment, and a computer room. You can place a concentrator
enclosed in a plastic cover in an office environment. You can install a concentrator
without a plastic cover in a standard 48-centimeter (19-inch) rack.

1.3 Configurations
For configuration and cabling information refer to the following:

• Configuration rules and information — refer to the Fiber Distributed Data
Interface Network Configuration Guidelines manual.

• Cabling information — refer to the DECconnect System Fiber Optic Planning and Configuration and DECconnect System Fiber Optic Installation
manuals.

1.4 Physical Description
A fully configured DECconcentrator 500 unit consists of the cover, chassis, power
supply, controller/backplane, card cage, and option cards.

1–2

DECconcentrator 500 Installation

1.4.1 Power Supply

The 154-watt power supply drives two fans and delivers power to the controller/
backplane and option cards. The power supply has the following features:

•

Thermal protection provides automatic shutdown of the unit if the operating
temperature exceeds the specification.

•

Automatic voltage select (AVS) that allows the power supply to operate with
an input voltage of 110/120 volts or 200/240 volts without setting a voltage
switch.

1.4.2 Controller/Backplane

The controller/backplane contains a microprocessor that executes all diagnostic and
operational firmware. The controller/backplane also does the following:

•

Controls the Network Management Card and Port Cards

•

Distributes power from the power supply to the option cards

•

Distributes clock and processor-control signals to the option cards

•

Provides the data-path interconnect between the option cards

1.4.3 Card Cage

The card cage contains three slots for option cards. Option cards inserted into the
card cage connect to the controller/backplane through 120-pin connectors.
1.4.4 Option Cards

Several option cards are available for the DECconcentrator 500. Contact your Digital representative for more information. Option cards can be Network Management
Cards or Port Cards.

•

The Network Management Card provides the DECconcentrator 500 with all
the hardware to support the connection through the dual ring.

•

The Port Card contains all the hardware for the physical connection to an end
station. Single attachment stations (SAS) and dual attachment stations (DAS)
used as single attachment stations connect to the Port Card.

Introducing the DECconcentrator 500

1–3

1.5 Controls and Indicators
The controls and indicators are located on the main frame of the DECconcentrator
500 unit and on the option cards (see Figure 1–1). The light emitting diode (LED)
indicators provide operational and fault status.
Figure 1–1:

DECconcentrator 500 Controls and Indicators

Controller/backplane
fault LED
Multimode Network
Management Card
optical bypass connection

Fan fault LED

Circuit breaker

Power supply DC
OK LED

AC power

Connector reserved
for Digital
manufacturing

Network
Management
Card
Port
cards

OBM 25-pin
D-subminiature
connector
DECconcentratorTM 500

Network Management Card
configuration switches
Switch 1 (left): reset to factory defaults
Switch 2 (right): write access enable/disable

Ring
operational
LED

= Port status LED
= Fault LED
= Connectors
LKG–5114–91I

1–4

DECconcentrator 500 Installation

Table 1–1 describes the DECconcentrator 500 controls. Table 1–2 describes
the function of each LED.
Table 1–1:

DECconcentrator 500 Controls

Control

Description

AC power socket

Provides connection to ac power source.

Circuit breaker

Provides overcurrent protection for the concentrator. The white center of the circuit breaker
pops out if the circuit breaker trips. The ac power is cut off to the concentrator when the circuit
breaker trips. Pressing the white center resets
the circuit breaker. The circuit breaker trips at 4
amps.

Out-of-band management
connector

Provides remote management through connection directly to a terminal or through a modem to a terminal. Refer to Chapter 4.

Optical bypass connector

Provides connectivity of the FDDI ring in the absence of power or during fault conditions of a
node. The connector is located on the Multimode Network Management Card.

Table 1–2:
Icon

DECconcentrator 500 Indicators

LED

I/O Panel

Color

Normal
State

Controller/
Backplane fault

Unit

Red

OFF

If ON, there is a fault with the
controller/backplane. In this
case the concentrator will not go
online in the network.

Power supply
DC OK

Unit

Green

If OFF, there is a problem with
the power supply.

Fan fault

Unit

Red

OFF

If ON, there is a problem with the
fans.

Introducing the DECconcentrator 500

Description

1–5

1.5.1 Option Card Indicators

Each option card has one LED that provides card fault status. The other LEDs provide physical layer (PHY) status.
If system diagnostics detects a broken port, that port is bypassed and the remaining
ports continue to operate in the FDDI ring. The PHY LED turns red and the card fault
LED turns on.
If the system diagnostics finds all the ports faulty, the entire card is bypassed on the
backplane, and the card fault LED turns on.
Refer to Figure 1–1 for the location of the LEDs and Table 1–3 for a description of
the LEDs.
Table 1–3:

Option Card Indicators

Icon

LED

I/O Panel

Color

Normal
State

Ring
OK

Ring operation

Network
Management
Card

Green

If ON, the ring is
operating.

Card fault

Card

Red

OFF

If ON, there is a problem
with the card.

Physical
connection
status

Card

Green/ Green
Red

PHY

1–6

Description

Indicates the state of the
physical connection.

DECconcentrator 500 Installation

1.6 Operational Software
The concentrator runs a self-test after power up or a software-initiated reset. The
self-test includes software tests and initialization of the hardware. This test includes
isolation of faulty hardware by reconfiguration. After successful initialization, the
operational software controls the hardware to provide:

•

FDDI token ring function

•

Support for reception, processing, and transmission of remote management,
maintenance operations protocol (MOP) packets, and station management
(SMT) packets

•

Volatile and nonvolatile error and data logs

•

Ring management and ring fault handling (FDDI Station Management
(SMT))

•

Out-of-band management

•

Optical bypass

Refer to Chapter 4 for the out-of-band management functions and capabilities. Refer
to the DECelms Use manual and the DECmcc Concentrator Access Module Use
manual for network management functions and capabilities.

Introducing the DECconcentrator 500

1–7

2
Preparing for Installation

This chapter describes the shipment contents and site-preparation information.

2.1 Checking the Shipment Contents
A DECconcentrator 500 shipment consists of one or more boxes, depending on the
option equipment ordered. Refer to Figure 2–1 to check the contents of your shipment.
CAUTION !
Static electricity can damage modules and electronic
components. Digital recommends you use a grounded
wrist strap (Digital P/N 29-11762) and grounded work
surface when you handle any modules or internal
parts.

Do not remove an option card from the antistatic bag until instructed to do so.
1. Unpack and check the shipment for damage and missing parts.
–

In case of damage, contact your shipping agent and your Digital sales
representative.

–

In case of missing parts, contact your Digital sales representative.

–

Make sure the power cord matches your wall outlet (see Figure 2–2).

2–1

2. Check the model number, serial number, and the hardware address of the concentrator (see Figure 2–3) and record them in the DECconcentrator Identification List in Appendix B.
3. Save all packaging material. To prevent damage, repack the unit or parts in
the original packing material when transporting or shipping the unit.
Figure 2–1:

Checking the Shipping Contents

Loopback connector
(option card specific)
Rackmount kit
Option card installation
manual
DECconcentrator 500
Installation manual
Power cord
(country–specific)

LKG–5424-91l

2–2

DECconcentrator 500 Installation

Figure 2–2:

U.S. and International Power Cords

Power cable

115 V

220 V/230 V/240 V

LKG–4926–91I

WARNING !
For continued protection against risk of electric
shock, this product must be connected to a three-wire
wall receptacle that has its grounding terminal reliably connected to the building’s safety earth ground.

The DECconcentrator 500 switches automatically to 110/120 Vac or 200/240 Vac.
No action is required to set the voltage. Table 2–1 lists the order numbers for the international power cords.

Preparing for Installation

2–3

Table 2–1:

International Power Cords

Order
Number

Country

Order
Number

Country

BN20A-2E

United States, Canada

BN20F-2E

Switzerland

BN20B-2E

Japan

BN20H-2E

Denmark

BN20C-2E

Australia, New Zealand

BN20J-2E

Italy

BN20D-2E

Belgium, Finland, France,
Germany, Holland, Norway,
Spain, Sweden

BN20K-2E

India, South Africa

BN20E-2E

Ireland, United Kingdom

BN20L-2E

Israel

Figure 2–3:

DECconcentrator Model and Serial Numbers
Network Management Card

Tabletop

Serial and
model number

DECconcentrator 500
P/N DEFCN–BC
P/N DEFCN–BD

25-pin D-subminiature
connector

Port Card

Network Management Card
Rackmount
DECconcentrator 500
P/N DEFCN–AC
P/N DEFCN–AD

25-pin D-subminiature
connector

Port Card

LKG–4918–91I

2–4

DECconcentrator 500 Installation

The DECconcentrator 500 is available as DEFCN-AC, DEFCN-AD, DEFCN-BC,
and DEFCN-BD. You may have option cards already installed in your concentrator.
Refer to the Option Card Installation manual shipped with the concentrator for option card information.

•

DEFCN-AC is for use in a rack and contains a U.S. power cord. It does not
have a plastic cover.

•

DEFCN-BC is for use on a tabletop and contains a U.S. power cord. It has a
plastic cover.

•

DEFCN-AD and DEFCN-BD are for applications outside the United States
and Canada and have no power cord. You must order the required power cord
separately.

2.2 Site Preparation
Verify that the installation site meets the physical, environmental, power, and cabling requirements for the DECconcentrator 500.
Use the checklist in Section 2.3 to verify that the site is ready. Refer to the Fiber
Distributed Data Interface Network Configuration Guidelines manual or the Fiber
Distributed Data Interface System Level Description manual for configuration information. Refer to Appendix A for operating, environmental, and power requirements for the unit.
Note that each cable in a cable plant should have a unique identification number recorded on a tag attached to the cable. Testing and certification information about the
cable should have been recorded in the cable plant log book. Table 2–2 shows a sample of a fiber cable plant log-book entry.
Table 2–2:

Sample Cable Plant Log-Book Entry

Fiber Label

Fiber Size Fiber
and Color Length

Loss
850/1300

Corrected
Loss
850/1300

Certification Date

Test
EquipOperator ment

B02H02/01

62.5/125

1.8/1.3

1.7/1.2

8/14/89

J.P.R

Preparing for Installation

500 M

Intelco

2–5

2.3 Site Preparation Checklist
Use the following checklist to verify the site preparation.
Hardware
Make sure the cables are installed, tested, tagged, and certified. Note the
cable length and corrected loss (see Table 2–2).
If the DECconcentrator 500 is to be connected to a bridge, make sure the appropriate bridge is installed and the required bridge-to-DECconcentrator
500 cabling is in place.
If the DECconcentrator 500 is connected to an end station such as a workstation or server, make sure the device is installed and the required device to
the DECconcentrator 500 cabling is in place.
Suitable Environment
Make sure that the power outlet matches the power requirements of the
DECconcentrator 500 and:

•

The outlet is within 1.8 meters (6 feet) of the installation site.

•

The circuit is a 15- or 20-amp, dedicated single-phase
(three-wire) circuit (United States and other countries).

For 120-Vac operation, the typical input current for concentrator is 1.6
ARMS at 88 VRMS/line.
For 240-Vac operation, the typical input current for the concentrator is 0.92
ARMS at 176 VRMS/line.
See Appendix A for additional power requirements.
Make sure the temperature, altitude, and humidity ranges are within the
specifications. See Appendix A.
Make sure the space is adequate for ventilation and maintenance access.

2–6

DECconcentrator 500 Installation

Service
Make sure the (optional) service agreements are in place. Contact your Digital sales representative for information on available hardware and software
services to support the DECconcentrator 500.
Office Installation
Make sure the location is at least 45 centimeters (18 inches) above the floor
surface.
Allow at least 10 centimeters (4 inches) of airspace around the DECconcentrator 500.
Place the DECconcentrator 500 away from direct sunlight, heaters, as well
as photocopiers and other magnetic devices.
Rackmount Installation
You can install the DECconcentrator 500 into a standard 48-centimeter (19-inch)
rack or RETMA rack cabinet. Digital Equipment Corporation and other major manufacturers of electronic equipment use standard-size racks. The rack and cabinet
rails, mounting hole patterns, and spacing conform to international standards that allow compatibility with products manufactured by Digital and others in the industry.
Satellite Distribution Frame (SDF) Installation
If you are installing the DECconcentrator 500 in a standalone SDF, or as part of a
DECconnect System installation, refer to the DECconnect System Fiber Optic Installation manual.
The SDF, a component of the DECconnect System, provides a central location for
communication devices that connect fiber optic networks, ThinWire Ethernet, and
twisted-pair cable to a standard Ethernet network. The SDF can also be configured as
the center of a standalone network.

Preparing for Installation

2–7

3
Installing the DECconcentrator 500

This chapter describes how to install the DECconcentrator 500 and how to verify the
operational status.
WARNING !
The DECconcentrator 500 contains no user-serviceable
parts. During installation, do not open the unit for any
reason. If the concentrator needs repair, only qualified
personnel familiar with safety procedures for electrical
equipment and the DECconcentrator 500 should access
components inside the unit.
WARNING !
To avoid bodily injury or damage to the equipment, do
not connect the power cord or any other cable until you
are instructed to do so in the following procedures.
Do not apply power to the unit unless all covers are installed.

The DECconcentrator 500 ships from the factory with the option-card configuration
installed. If you ordered additional option cards, refer to the Option Card Installation
manual.

3–1

CAUTION !
To prevent damage to electronic components, do not exceed 50° C (122° F) ambient temperature at the air intake of the DECconcentrator 500.
CAUTION !
Static electricity can damage modules and electronic
components. Digital recommends you use a grounded
wrist strap and grounded work surface (P/N 29-11762)
when you handle any modules or internal parts.
NOTE
The Network Management Card must be set to the default parameters in order to test all the ports. Make sure
you reset switch 1 (reset to default setting switch). Refer
to your Option Card Installation manual for switch settings.

3.1 Installing the Desktop DECconcentrator 500
The desktop concentrator has a plastic cover. The DECconcentrator 500 runs cooler
without a plastic cover. If the ambient room temperature is normally above 35° C
(95° F) remove the plastic cover.
To remove the plastic cover, do the following (see Figure 3–1):
1. Place the concentrator upside down on a sturdy surface.
2. Remove the eight screws from the bottom of the unit. Remove the plastic
cover. Store the cover and associated hardware for future use or reconfiguration.
CAUTION !
Do not reinstall the cover screws into the concentrator’s
metal chassis without the cover. This could damage the
concentrator.

3–2

Installing the DECconcentrator 500

Figure 3–1:

Removing the Plastic Cover

Screws for feet
Rubber feet

Screws to chassis

Spacer

LKG–3804–90I

DECconcentrator 500 Installation

3–3

3.2 Installing the Rackmount DECconcentrator 500
The DECconcentrator 500 can be mounted in a standard 48-centimeter (19-inch)
RETMA rack cabinet using the rackmount kit.
Install the concentrator in the rack so that the I/O panel is visible to the network/manager for monitoring the status LEDs.
CAUTION !
The air inside the enclosed rack can be hotter than the
ambient room temperature. Make sure that the air entering the DECconcentrator 500 does not exceed the maximum intake temperature of 50° C (122° F).

3–4

Installing the DECconcentrator 500

3.2.1 Installing the Rackmount Brackets

Install the rackmount brackets as follows (see Figure 3–2):
1. Remove the six screws from the sides of the chassis adjacent to the I/O panel
of the concentrator. Save the screws for future use.
2. Install the rackmount brackets. Use the six 8-32 Phillips-head screws with
lock washers provided in the rackmount kit.
Figure 3–2:

Preparing the Unit for Installation in the Rack

LKG–3805–91I

DECconcentrator 500 Installation

3–5

3.2.2 Preparing the Rack

To prepare the rack, do the following:
1. Determine where you want to mount the concentrator in the rack. Allow 2.54
centimeters (1 inch) spacing between mounted devices.
2. Attach the four U-nuts to both rails at the front of the cabinet (Figure 3–3).
Figure 3–3:

Preparing the Rack

4 holes
7 holes

4 holes

U–nuts

2.54 cm
(1 in)

Mounting bracket
(shown for
reference only)
Front of cabinet
LKG–3806–90I

3–6

Installing the DECconcentrator 500

3.2.3 Installing the Concentrator in a Rack

To install the concentrator in a rack, do the following:
1. With one person supporting the front of the unit, slide the unit into the rack
from the front of the cabinet (see Figure 3–4). Make sure that the I/O panel is
visible to monitor the LEDs.
2. Fasten the rackmount brackets to the U-nuts on the cabinet rails. Use the four
10–32 Phillips-head screws with lock washers provided in the rackmount kit.
3. Do not connect any cables until instructed to do so.
Figure 3–4:

Installing the Unit in the Rack

Front of cabinet
(4) 10-32
Phillips-head screws
with (4) lock washers
LKG–3807–91l

DECconcentrator 500 Installation

3–7

3.3 Installing the Option Card
Refer to the option card installation manual to install your option card.
NOTE
If you are installing an option card refer to the manual
shipped with your option card. Your option card must be
installed before applying power to the concentrator.
The Network Management Card must be installed in the
top slot of the DECconcentrator 500. If you are installing only Port Cards, install a Port Card in the top slot.

3.4 Connecting the Power Cord
The DECconcentrator 500 unit does not have a power on/off switch. Plugging in the
power cord applies power directly to the concentrator and initiates the self-test. The
DECconcentrator 500 switches automatically to 100/120 Vac or 200/240 Vac. No
action is required to set the voltage.
Before applying power, your option card must be installed and the Network Management Card switch set to the default settings (refer to the option card installation manual shipped with your option card).
WARNING !
To avoid bodily injury, use care when connecting the
concentrator power cord. Regulations in some countries
may require an authorized person to connect the power.
Make sure you connect the power cord to a grounded
wall outlet.
WARNING !
For continued protection against risk of electric shock,
this product must be connected to a three-wire wall receptacle that has its grounding terminal reliably connected to the building’s safety earth ground.

3–8

Installing the DECconcentrator 500

To connect the power cord, do the following:
1. Make sure the power cord plug matches the wall outlet.
2. Refer to Figure 3–5 and plug the power cord into the concentrator (1) and
then into the wall outlet (2). This applies power to the concentrator and starts
the self-test. Allow 15 seconds for the self-test to complete.
Figure 3–5:

Connecting the Power Cord

LKG–5052–91I

DECconcentrator 500 Installation

3–9

3. Observe the power, fan, and controller/backplane LEDs to make sure the concentrator operates (see Figure 3–6).
The controller/backplane LED goes ON and remains ON during the self-test. After
self-test is complete, the port LEDs blink green. If you experience any problems, go
to Chapter 5.
Figure 3–6:

Checking the Operational Status

Controller/
back–
plane Fan Power
LED LED LED

= OFF
= ON (Green only;on solid)
= ON (Green only;blinking)

DECconcentratorTM 500

Card
Fault
LED

Port A
LED

Port B
LED

Ring
Oper–
ational
LED

Network Management Card

Card
Fault
LED

Port 1
LED

Port 2
LED

Port 3
LED

Port 4
LED

Port Cards
LKG–4920–91I

3–10

Installing the DECconcentrator 500

3.5 Connecting Cables and Connectors
Refer to your Option Card Installation manual for the following information:
1. Identifying the connector and port type
2. Connecting the cable to the appropriate connector and port
3. Observing the LEDs when you are connecting the cables
4. Adding the cable identification numbers to the DECconcentrator 500 Identification List in Appendix B
When connecting cables, use the following guidelines:
–

Bridges, workstations, and other single attachment stations (SAS) connect
to the M ports on the Port Card.

–

A concentrator or dual attachment station (DAS) participating in a dual
ring connects to the dual ring through Ports A and B on the Network
Management Card. Cabling goes from Port B of the upstream concentrator or DAS to Port A.

–

In a tree configuration, a concentrator or DAS B port connects to a concentrator M port.

To use the out-of-band management, go to Chapter 4.

DECconcentrator 500 Installation

3–11

4
Using Out-of-Band Management

This chapter shows you how to access and display the out-of-band management
(OBM) menus and menu options. The attributes displayed in the menus are defined
in the DECelms Use manual and the DECmcc Concentrator Access Module Use
manual.

4.1 Introduction
Using out-of-band management is optional and is not necessary for the operation of
the unit. OBM allows you to manage the DECconcentrator 500 unit with or without a
Network Management Card. Using OBM does not require any special management
station or software other than a terminal. You can connect a terminal directly to the
25-pin D-subminiature connector on the input/output (I/O) of the concentrator panel. You can also connect the terminal to the concentrator through a modem.
NOTE
The DECconcentrator 500 requires Version 3.1 (or a
higher version) microcode for OBM support. OBM microcode does not have full modem support. Therefore,
you must use a Scholar modem (or equivalent).

4–1

4.2 Connecting OBM Directly to a Terminal
To connect OBM directly to a terminal, do the following:
1. Set your terminal to a 2400 baud rate and 8 bits/no parity/1stop bit.
2. Connect one end of the cable to the 25-pin D-subminiature connector on the
DECconcentrator 500 I/O panel and the other end of the cable to your terminal.

•

For VT100 or VT200 series:
–

•

Digital recommends using P/N BC22R-xx cables with 25-pin connectors
at each end. If you use P/N BC16E-xx cables, use a passive adapter (P/N
H8575A) at each end of the cable.

For VT300 or VT400 series:
–

Digital recommends using the standard six-pin modular jack (MJ) connector cable P/N BC16E-xx.

3. Press

RET

to display the Main Menu (See Example 4–1).
NOTE
The baud rate can be set to 19200 from the Main
Menu display. To set the baud rate to 19200 or change
back to 2400, press SHIFT - ~ . Ensure that your
terminal is set to the proper baud rate.

4.3 Connecting OBM through a Modem to a Terminal
To connect OBM through a modem to a terminal, do the following:
1. Set your terminal to a 2400-baud rate and 8 bits/no parity/1stop bit.
2. Connect one end of the cable to the terminal and the other end of the cable to
the modem (Figure 4–1).

•

For VT100 or VT200 series:
–

4–2

Digital recommends using P/N BC22R-xx cables with 25-pin connectors
at each end. If you use P/N BC16E-xx cables, use a passive adapter (P/N
H8575A) at each end of the cable.

DECconcentrator 500 Installation

•

For VT300 or VT400 series:
–

Figure 4–1:

Digital recommends using the standard six-pin modular jack (MJ) connector cable P/N BC16E-xx.
Using a Modem

DECconcentrator 500
Tel. lines
Terminal
Scholar modem
Modem
LKG-5633-90I

3. Connect the Scholar modem (or equivalent) to the DECconcentrator 500
OBM port. Ensure that the Data Terminal Ready (DTR) switch is turned on.
–

Digital recommends using P/N BC22R-xx cables with 25-pin connectors
at each end. If you use P/N BC16E-xx cables, use a passive adapter (P/N
H8575A) at each end of the cable.

4. Press

RET

to display the Main Menu (see Example 4–1).

Using Out-of-Band Management

4–3

The main menu and sub-menu options share the following functions:

•

Error messages and prompts appear at the bottom of the screen.

•

The
sor.

•

The CTRL - Z keys clear data input and deactivates the menu option or submenu. If you are in a sub-menu, CTRL - Z returns you to the main menu.

•

The “>” character appears to the right of a menu option showing that the option has been activated and requires input. Text appears at the bottom of the
screen prompting you to enter data.

•

Press any key to return to a sub-menu option from a sub-menu display.

•

If your option contains more than one screen of data, press any key to see the
rest of the data. When you go to the next screen of data, the first screen is
lost. To display the previous screen you must go back and select the option
again.

•

If there is a power failure or the the out-of-band management cable is disconnected, you can restore the display by pressing CTRL - Z and RET .

(backspace-delete) key deletes the character to the left of the cur-

NOTE
If you choose an option that requires user input, a
prompt appears at the bottom of the screen and the “>”
character appears at the option you have selected. Enter
the required information at the “>” character.

4–4

DECconcentrator 500 Installation

The Main Menu displays the options available shown in Example 4–1. Select an option number and follow the text prompts at the bottom of the screen.
Example 4–1: Displaying the Main Menu

Using Out-of-Band Management

4–5

4.4 Displaying the Show Menu Option
Example 4–2 shows the display for selection of option 1 (Show) of the Main Menu.
The command line (at the bottom of the screen) prompts you to enter an Entity option
number.
Example 4–2: Selecting the Entity

To continue, follow steps 1 and 2.
1. Enter an Entity option number. After you enter an Entity option, the Subgroup heading is put in reverse video, as shown in Example 4–3.

4–6

DECconcentrator 500 Installation

2. Enter the Subgroup option number .

Example 4–3: Selecting the Subgroup

Using Out-of-Band Management

4–7

4.4.1 Displaying the Show Device Status Option

Example 4–4 shows the display for the selection of Entity option 1 (Device), and
Subgroup option 1 (Status).
Example 4–4: Displaying Show Device Status

4–8

DECconcentrator 500 Installation

4.4.2 Displaying the Show Device Characteristics Option

Example 4–5 shows the display for the selection of Entity option 1 (Device) and
Subgroup option 2 (Characteristics).
Example 4–5: Displaying Show Device Characteristics

Using Out-of-Band Management

4–9

4.4.3 Displaying the Show Device Counters Option

Example 4–6 shows the display for the selection of Entity option 1 (Device ) and
Subgroup option 3 (Counters).
Example 4–6: Displaying Show Device Counters

4–10

DECconcentrator 500 Installation

4.4.4 Displaying the Show Line Status Option

Example 4–7 shows the display for the selection of Entity option 2 (Line) and Submenu option 1 (Status).
Example 4–7: Displaying Show Line Status

Using Out-of-Band Management

4–11

4.4.5 Displaying the Show Line Characteristics Option

Example 4–8 and Example 4–9 show the display for the selection of Entity option 2
(Line) and Subgroup option 2 (Characteristics). The data does not appear on one
screen. Press any key to view the rest of the data. When you go to the next screen of
data, you lose the first screen. To display the previous screen, go back to the Show
Menu and select the option again.
Example 4–8: Displaying Show Line Characteristics

4–12

DECconcentrator 500 Installation

Example 4–9: Displaying Show Line Characteristics (Cont.)

Using Out-of-Band Management

4–13

4.4.6 Displaying the Show Line Counters Option

Example 4–10 and Example 4–11 show the display for the selection of Entity option
2 (Line) and Subgroup option 3 (Counters). The data does not appear on one screen.
Press any key to view the rest of the data. When you go to the next screen of data, you
lose the first screen. To display the previous screen, go back to the Show Menu and
select the option again.
Example 4–10: Displaying Show Line Counters

4–14

DECconcentrator 500 Installation

Example 4–11: Displaying Show Line Counters (Cont.)

Using Out-of-Band Management

4–15

4.4.7 Displaying the Show PHY Option

Example 4–12 shows the display for the selection of Entity option 3 (PHY). The “>”
character appears at the PHY option. Enter the PHY and press RET . The subgroup
heading is put in reverse video. Enter a subgroup option number.
NOTE
If you enter an invalid PHY number, the console beeps
and an error message appears at the bottom of the screen.
Example 4–12: Displaying Show PHY

4–16

DECconcentrator 500 Installation

4.4.8 Displaying the Show PHY Status Option

Example 4–13 shows the display for the selection Entity option 3 (PHY). Enter a
PHY number at the “>” character, press RET and select Subgroup option 1 (Status).
Example 4–13: Displaying Show PHY Status

Using Out-of-Band Management

4–17

4.4.9 Displaying the Show PHY Characteristics Option

Example 4–14 shows the display for selecting Entity option 3 (PHY). Enter a PHY
number at the “>” character, press RET and select Subgroup option 2 (Characteristics).
Example 4–14: Displaying Show PHY Characteristics

4–18

DECconcentrator 500 Installation

4.4.10 Displaying the Show PHY Counters Option

Example 4–15 shows the display for the selection of Entity option 3 (PHY). Enter a
PHY number at the “>” character, press RET and select Subgroup option 3 (Counters).
Example 4–15: Displaying Show PHY Counters

Using Out-of-Band Management

4–19

4.5 Displaying the Set Menu
To access the Set Menu select option 2 of the Main Menu. Example 4–16 displays
the Set Menu.
Example 4–16: Displaying the Set Menu

4.5.1 Selecting the IP Address Option

To access the Internet Protocol (IP) address, select option 1 of the Set Menu. Enter
the IP address at the prompt and press RET . The IP address you entered appears at
the bottom of the screen.

4–20

DECconcentrator 500 Installation

4.5.2 Selecting Gateway Address Option

To access the gateway address, select option 2 of the Set Menu. Enter the Gateway
address at the prompt and press RET . The Gateway address you entered is appears
at the bottom of the screen.
4.5.3 Selecting the Requested TRT Option

To access the requested Token Rotation Time (TRT), select option 3 of the Set Menu.
Enter a value at the prompt and press RET . The TRT value you entered appears at
the bottom of the screen.
4.5.4 Selecting the LEM Threshold Option

To access the Line Error Monitor (LEM) threshold option. select option 4 of the Set
Menu. Enter a PHY number at the first prompt and press RET . Enter a value at the
second prompt and press RET . The value you entered appears at the bottom of the
screen.
4.5.5 Selecting the TVX Option

To access the Activity (TVX) option, select option 5 of the Set Menu. Enter a value at
the prompt and press RET . The value you entered appears at the bottom of the
screen.
4.5.6 Selecting the Update Switch Option

To access the Update Switch option, select option 6 of the Set Menu. If the Update
Switch is ON and you select option 6, the Update Switch toggles to OFF. If you select
option 6 and the Update Switch is OFF, the Update Switch toggles to ON.
4.5.7 Selecting the Ring Purger Enable Option

To access the Ring Purger Enable option, select option 7 of the Set Menu. Selecting
option 7 toggles to TRUE if the setting was FALSE and toggles to FALSE if the setting was TRUE.

Using Out-of-Band Management

4–21

4.5.8 Selecting the Password Option

Select option 8 of the Set Menu to set a password. Type the password at the prompt (1
character minimum, 16 characters maximum). To protect your password, X’s will
appear on the screen instead of your password. If you select an option that requires a
password (that you have previously set) for access, the “>” character appears at option 2 (Set). You must enter the password to access the option.
NOTE
The factory default does not have a password set for the
device. If you select an option and you are prompted for
a password, press RET .

After you set a password, you are prompted for that password to access the following
options of the Main Menu:

4–22

•

Option 2 (Set)

•

Option 3 (Enable PHY)

•

Option 4 (Disable PHY)

•

Option 5 (Add trap address)

•

Option 6 (Remove trap address)

•

Option 7 (Reset)

DECconcentrator 500 Installation

4.5.9 Selecting the Defaults and Reset Option

Selecting option 9 of the Set Menu resets any system parameters that have been altered through remote management to the default settings.
“Set to defaults and reset, continue?” appears at the bottom of the screen.
Press Y for yes or N for no. If you pressed Y , “Resetting; please wait...”
appears at the bottom of the screen. Reset is completed when the screen clears and
the main menu reappears.
NOTE
If your terminal is set for 19200 baud rate, resetting will
default to 2400 baud rate. After reset is complete, you
must change the setup on your terminal to 2400. Change
the baud rate back to 19200 by following the procedures
in Section 4.2.
4.5.10 Selecting the Restricted Token Timeout Option

To access the Restricted Token Timeout option, select option 0 of the Set menu. Enter
a value at the prompt and press RET . The value you entered appears at the bottom
of the screen.

4.6 Selecting the Enable PHY Option
To access the Enable PHY option, select option 3 of the Main Menu. Enter a PHY
number and port at the prompt. The PHY you enabled appears at the bottom of the
screen.

4.7 Selecting the Disable PHY Option
To access the Disable PHY option, select option 4 of the Main Menu. Enter a PHY
number and port at the prompt. The PHY you disabled appears at the bottom of the
screen.

Using Out-of-Band Management

4–23

4.8 Selecting the Add Trap Address Option
Select option 5 of the Main Menu to add a trap address. Enter the trap address at the
prompt and press RET . The trap address you entered appears at the bottom of the
screen.

4.9 Selecting the Remove Trap Address Option
Select option 6 of the Main Menu to remove a trap address. Enter the trap address at
the prompt and press RET . The trap address you removed appears at the bottom of
the screen.

4.10 Selecting the Reset Option
Selecting option 7 of the Main Menu resets the concentrator and zeros all counters. If
the reset to defaults switch on the Network Management Card is on, the system parameters will reset to the default settings. If the resets to defaults switch on the Network Management Card is off, the system parameters will remain the same.
NOTE
The Show Device Characteristics option displays the
position of the Network Management Card reset to defaults switch.

“RESET box, continue?” appears at the bottom of the screen. Press
N for no.

for yes or

If you pressed Y , “Resetting; please wait” appears at the bottom of the screen.
Reset is complete when the screen clears and the main menu reappears.
NOTE
If your terminal is set for 19200 baud rate, resetting will
default to 2400 baud rate. After reset is complete, you
must change the setup on your terminal to 2400. Change
the baud rate back to 19200 by following the procedures
in Section 4.2.

4–24

DECconcentrator 500 Installation

5
Problem Solving

5.1 Introduction
This chapter helps you identify and correct problems that may occur during installation of the DECconcentrator 500. These procedures are for diagnosing and correcting hardware-related problems only.
As you perform the problem-solving steps, record the symptoms, LED state, and
how you corrected the problem.

5.2 Problem-Solving Sequence
Use the following procedures to identify the problem:
1. Check all cable connections to make sure they are properly connected.
2. Run the self-test.
3. Record the condition of the concentrator LEDs.
4. Take the appropriate corrective action (see Table 5–1 through Table 5–5).
5. After diagnosing and correcting the problem, return to Chapter 3 to confirm
the correct operation of the concentrator.

5–1

WARNING !
The DECconcentrator 500 contains no user-serviceable parts. During installation, do not open the unit
for any reason. If the concentrator needs repair, only
qualified personnel familiar with safety procedures
for electrical equipment and the DECconcentrator 500
should access components inside the unit.
WARNING !
Always remove the power cord from the unit and ac
source when performing any removal and replacement procedures.

Remove any cable that could be in the way when you service the unit.
NOTE
Reinstall all cables back in their original ports and
position. An incorrectly installed cable can cause the
network to fail.

5–2

DECconcentrator 500 Installation

5.3 Running the Self-Test
To run the self-test:
1. Disconnect the power from the DECconcentrator 500.
2. Reconnect the power to start the self-test.
NOTE
If any ports have been disabled by remote management (DECelms and DECmcc), the LEDs may not
light as indicated in these procedures. The Network
Management Card switches must be set to the default
parameters in order to test all ports. If you are reinstalling the unit, make sure you enable switch 1 (the
reset to default settings switch). Refer to your Option Card Installation manual.

The DECconcentrator 500 self-test runs for approximately 15 seconds. Observe the
power, fan, and controller/backplane LEDs to make sure the concentrator is operational. After self-test is complete, the port LEDs blink green.
If no fault occurs, operational firmware takes control of initializing the DECconcentrator 500. If there is a non-fatal fault, the operational firmware decides whether to
continue or to abort the initialization of the DECconcentrator 500.
Section 5.4 describes what to do if the LED display is not normal.

Problem Solving

5–3

5.4 Diagnosing Problems
Table 5–1 through Table 5–4 are basic problem-solving procedures to follow when
you encounter a problem during installation or operation of the concentrator. The
symptoms described here are presented in the order they might occur during the
power-up self-test.
Table 5–1:

Basic Problem Solving by Symptom

Symptom

Probable Cause

Corrective Action

All LEDs off.

Power cord connection.

Make sure the power cord is firmly
connected at both ends.

Incorrect or no power at wall
outlet.

Make sure the correct power is available at the wall outlet. If no power is
available, check the circuit breaker for
the outlet. If necessary, connect the
unit to a different outlet.

Circuit breaker has tripped.

Check the circuit breaker. If the circuit
breaker has tripped, reset it by
pressing on the white center button. If
the problem persists, the power supply or circuit breaker needs to be replaced. Notify your system/network
manager or service provider.

Blown fuse at wall outlet.

In some countries the power connector at the wall outlet has a fuse. Replace the blown fuse. If the problem
persists, connect to a different wall
outlet. If the problem continues there
could be a faulty power cable or incorrect wiring. Notify your system/network manager.

Faulty power cord.

Use a meter to measure the continuity of the power cord. Replace the
cord if defective.

DC OK LED is off, any other
LED on.

Problem with the power supply.

The power supply needs to be replaced or repaired. Notify your system/network manager or service provider.

Fan LED is on (red).

Problem with the fan or fan
connection.

Notify your system/network manager
or service provider.

Controller/backplane LED is on
(red) and all option card fault
LEDs are on (red).

Problem with the Controller/
backplane, LED, or connection to the power supply.

Notify your system/network manager
or service provider.

5–4

DECconcentrator 500 Installation

Table 5–2:

Network Management Card Problem Solving

Symptom

Probable Cause

Corrective Action

Card Fault LED on (red), other
Port Card LEDs off, unit LEDs
are normal.

Problem with the Network
Management Card.

The card needs to be replaced or repaired. Notify your system/network
manager or service provider.

Ring Operational LED off.

No network activity, no token
being passed.

Indicates a network configuration
problem or problem on the network.
See your system/network manager if
the problem persists.

Port LED off.

Port disabled by management, LED broken or card at
fault.

Set port state on through the management software; otherwise, use the
reset to default parameter switch. Always notify your system/network
manager that you are resetting the
parameters.

Port LED blinking red.

Unsupported configuration or
ring topology.

Verify and reconfigure the cable connections or ring topology. Before you
reconfigure, see your system/network
manager for confirmation.

Port LED blinking green.

Unable to connect; no cable
attached.

Check the cable connections. Run the
loopback test. described in Section
5.5 to test the port. See Table 5–5 for
problem solving during loopback testing.

Port LED red and card
fault LED off.

Link Confidence Test (LCT)
failure, possible cable or
cable connection problem.

Check the cable connections. Run the
loopback test.

Port LED red and card
fault LED on.

Port broken.

The card needs to be replaced or repaired. Notify your system/network
manager or service provider.

Port LED alternates red
and green (port A only).

Port is in backup state.

No corrective action is required. The
backup link becomes active if the primary link fails.

Controller/backplane Fault LED Bad UART card.
blinking RED.

Problem Solving

Replace UART card.

5–5

5.4.1 Optical Bypass Problem Solving

Table 5–3 helps you identify and correct problems that may occur using the optical
bypass relay.
Table 5–3:

Optical Bypass Relay Problem Solving

Symptom

Probable Cause

Corrective Action

DECconcentrator 500 OK,
but is bypassed from the dual
ring.

Optical bypass relay is stuck
in the bypass position. Or the
relay is bad.

Verify by removing the relay
and observing that communications between station is reestablished. If the problem is
unresolved, contact your optical bypass relay service provider.

Upstream and downstream
stations are wrapped when
the concentrator is powered
down or the controller/backplane LED is red.

(1) Excessive loss induced by
the optical bypass relay. The
relay is not supported at this
location.

(1) Refer to the FDDI Network Configuration Guidelines manual. If unsupported,
remove the optical bypass
relay.

(2) Bad relay.

(2) Remove the optical bypass relay. Contact your optical bypass relay service provider.

5–6

DECconcentrator 500 Installation

Table 5–4:

Port Card Problem Solving

Symptom

Probable Cause

Corrective Action

Card Fault LED is on (red),
other Port Card LEDs off, unit
LEDs normal.

Problem with the Port Card.

The card needs to be replaced or repaired. Notify your system/network
manager or service provider.

Port LED off.

Port disabled by management, LED broken or card at
fault.

Set port state on through the management software; otherwise, use the
reset to default parameter switch. Always notify your system/network
manager that you are resetting the
parameters.

Port LED blinking red.

Unsupported configuration or
ring topology.

Verify and reconfigure the cable connections or ring topology. Before you
reconfigure, see your system/network
manager for confirmation.

Port LED red and card
fault LED on.

Port broken.

The card needs to be replaced or repaired. Notify your system/network
manager or service provider.

Port LED red and card
fault LED is off.

Link Confidence Test (LCT)
failure, possible cable or
cable connection problem.

Check cable connections. Run the
loopback test described in Section 5.5
to test the port. See Table 5–5 for
problem solving during loopback testing.

Port LED alternates red
to green.

Port is in backup state.

No corrective action is required. The
backup link becomes active if the primary link fails.

5.5 Loopback Testing
Use the loopback test to determine whether the DECconcentrator 500 Port Card or
Network Management Card is faulty, or whether there’s a problem with the cable or
the device at the other end of the cable. This test verifies the ability to transmit and
receive. This test does not verify the ability to receive minimum level signals or that
the transmitter’s output level is within specification.
WARNING !
Some fiber optic equipment can emit laser light that
can injure your eyes. Never look into an optical fiber
or connector port. Always assume the cable is connected to a light source.

Problem Solving

5–7

Use the following procedure to perform the loopback test:
1. Install the loopback connector.
2. Observe and record the port LED status on that port. The port status LED
should blink red.
3. Refer to Table 5–5 for corrective action.
If you have a port or card fault, see your system/network manager or authorized service representative for help.
Table 5–5:

Problem Solving During Loopback Testing

Symptom

Probable Cause

Corrective Action

Port LED red on, green on, or
blinking green.

Port failure.

The card needs to be replaced or repaired. Contact your system/network
manager or service provider.

Port LED blinking red.

Normal during loopback testing. Original problem could
be with the cable or device
at the other end of the
cable. The transmit power
may be out of specifications.

Check the operational status of the
device at the other end of the link. If
the problem persists contact your
system/network manager or service
provider.

If the problem continues, do the following :
1. Disconnect the power cord before performing any corrective action.
2. Check your warranty or service agreement for information about getting service and the type of service you have.
3. Notify your system/network manager or authorized service representative
about the problem.
4. Give a copy of your problem-solving record to your system/network manager
or service representative.

5–8

DECconcentrator 500 Installation

A
Specifications

This appendix contains the DECconcentrator 500 physical, environmental, operating, electrical, and power supply specifications.

A.1 Physical Specifications
Table A–1 (rackmount) and Table A–2 (tabletop) list the DECconcentrator 500
physical specifications.
Table A–1:
Parameter

Rackmount Unit Physical Specifications
Dimension

Height

13.33 cm

(5.25 in)

Depth

29.85 cm

(11.75 in)

Width

43.59 cm

(17.16 in)

Weight

7.95 kg

(17.5 lbs)

Table A–2:
Parameter

Tabletop Unit Physical Specifications (Plastic Enclosure)
Dimension

Height

16.10 cm

(6.34 in)

Depth

31.31 cm

(12.33 in)

Width

49.30 cm

(19.41 in)

Weight

9.97 kg

(22 lbs)

A–1

A.2 Environmental Specifications
The DECconcentrator 500 is designed to operate in an open office or in an exposed
area of an industrial site. The concentrator is not designed to operate in an air plenum.
CAUTION

To prevent damage to electronic components, do not
exceed 50° C (122° F) ambient temperature at the air
intake of the DECconcentrator 500.

Table A–3 and Table A–4 list the environmental specifications.
NOTE
Your service agreement may require specific limits for
temperature and humidity.
Table A–3:

Operating Environment Specifications

Parameter
Temperature
Operational (without cover)
Operational (with cover)
Non-operational

Value
5° C (41° F) to 50° C (122° F) at sea level*
5° C (41° F) to 35° C (95° F) at sea level*
-40° C (-40° F) to 66° C (151° F)

Relative humidity

10% to 95% (noncondensing)

Wet bulb

32° C (90° F) maximum

Dew point

2° C (36° F) minimum

Altitude

Sea level to 2.4 km (8,000 ft)

Air flow

200 LFM (minimum), for adequate air flow, provide approximately 10 to 15 cm (4 to 6 in) of space at both ends

Inlet/outlet air
temperature

Inlet: 50° C (122° F) maximum
Outlet: 60° C (140° F) maximum

*Reduce the maximum operating ambient temperature by 1.8° C/1000 m or by 1° F/1000 ft for
operation at high-altitude sites.

A–2

DECconcentrator 500 Installation

Table A–4:

Shipping Environment

Parameter

Value

Temperature

-40° C (-40° F) to 66° C (151° F)

Relative humidity

10% to 95% (noncondensing)

Altitude

Sea level to 9.1 km (30,000 ft)

A.3 Electrical Specifications
The DECconcentrator 500 unit has power-cord options for all major Digital markets.
Table A–5 lists the DECconcentrator 500 electrical specifications for a fully configured concentrator.
Table A–5:

Electrical Specifications

Parameter

120 Vac Operation

240 Vac Operation

Line voltage

110 V

220 V

Voltage tolerance

88 Vac to 132 Vac

176 Vac to 264 Vac

Power source phasing

Single

Frequency

50/60 Hz

Line frequency tolerance

47 Hz to 63 Hz

Input current (maximum)

2.3 ARMS at 88 VRMS line

1.2 ARMS at 176 VRMS line

Input current (typical)

1.6 ARMS at 88 VRMS line

0.92 ARMS at 176 VRMS line

Input power (maximum)

120 W
(input VA 200 maximum)

Input power (typical)

105 W
(input VA 155)

105 W
(input VA 177)

Over voltage condition

150 VRMS for 1 second
maximum

300 VRMS for 1 second
maximum

Cold start inrush current

Low range: 35 A peak
High range: 35 A peak

Heat dissipation (maximum)

120 W

Heat dissipation (typical)

105 W

Specifications

A–3

A.4 Power Supply Specifications
The 154-W universal power supply has the following specifications:

A–4

•

+ 5.0 Vdc at 18 amps and -5.0 Vdc at 10 amps

•

+12.0 Vdc at 2 amps

•

Overvoltage protection

•

Thermal shutdown

•

Automatic-adjust for input voltage to 120-Vac operation and 240-Vac operation

DECconcentrator 500 Installation

B
DECconcentrator 500
Identification List

Use the DECconcentrator 500 Identification List to record the following
information:

•

DECconcentrator 500 model number

•

DECconcentrator 500 serial number

•

Network Management Card

•

–

cable ID number

–

hardware address

–

ports used

–

switch 1 setting

–

switch 2 setting

Port Card
–

cable ID number

–

ports used

Fill in the DECconcentrator 500 Identification List (see Figure B–1) and give a copy
to the system/network manager.

B–1

Figure B–1: DECconcentrator 500 Identification List

DECconcentrator 500 Model Number
DECconcentrator 500 Serial Number
Network Management Card: Hardware Address
Network Management Card: switch 1 setting
Network Management Card: switch 2 setting
Network Management Card: ports used
Port A cable ID number
Port B cable ID number
First Port Card: ports used
Port 1 cable ID number
Port 2 cable ID number
Port 3 cable ID number
Port 4 cable ID number
Port 5 cable ID number
Port 6 cable ID number
Second Port Card: ports used
Port 1 cable ID number
Port 2 cable ID number
Port 3 cable ID number
Port 4 cable ID number
Port 5 cable ID number
Port 6 cable ID number
Third Port Card: ports used
Port 1 cable ID number
Port 2 cable ID number
Port 3 cable ID number
Port 4 cable ID number
Port 5 cable ID number
Port 6 cable ID number

B–2

DECconcentrator 500 Installation

C
Related Documents

Additional information can be found in the following documents. Refer to the back
of this manual for ordering information.

•

DECconcentrator 500 Multimode Option Card Installation
(Order No. EK-DEFCN-MM)
This manual describes the installation procedures for the multimode option
cards.

•

DECconcentrator 500 Single-Mode Option Card Installation
(Order No. EK-DEFCN-SM)
This manual describes the installation procedures for the single-mode option
cards.

•

DECconcentrator 500 ThinWire and Shielded Twisted-Pair Option Card
Installation (Order No. EK-DEFCN-CM)
This manual describes the installation procedures for the ThinWire and
shielded twisted-pair option cards.

•

DECconcentrator 500 Problem Solving (Order No. EK-DEFCN-PS)
This manual describes isolating DECconcentrator 500 faults to the field-replaceable unit (FRU) and removing and replacing each FRU. This is a field
problem-solving manual.

C–1

•

DECbridge 500/600 Installation and Upgrade (Order No. EK-DEFEB-IN)
This manual describes the installation and upgrade procedures for the
DECbridge 500/600 series.

•

DECbridge 500/600 Problem Solving (Order No. EK-DEFEB-PS)
This manual describes isolating DECbridge 500/600 faults to the fieldreplaceable unit (FRU) and removing and replacing each FRU. This is a field
problem-solving manual.

•

DECconnect System Fiber Optic Planning and Configuration
(Order No. EK-DECSY-FP)
This manual describes the planning requirements, product information, and
guidelines for configuring DECconnect System Fiber Optic Networks that
use the DECconnect System fiber optic products.

•

DECconnect System Fiber Optic Installation (Order No. EK-DECSY-FI)
This manual describes how to install a DECconnect System fiber optic cable
plant.

•

DECelms Installation (Order No. AA-PAK1A-TE)
This manual describes how to install and verify DECelms (DEC Extended
LAN Management Software) on a VMS system.

•

DECelms Reference (Order No. AA-PBWBA-TE)
This is a reference manual to the DECelms (DEC Extended LAN Management Software) commands.

•

DECelms Use (Order No. AA-PAK2A-TE)
This manual describes how to use DECelms (DEC Extended LAN Management Software) to configure, manage, and monitor the LAN Bridge 100,
LAN Bridge 150, LAN Bridge 200, DECbridge 500, and DECconcentrator
500.

•

DECmcc Installation (Order No. AA-PD58-BTE)
This manual describes how to plan for and install DECmcc.

C–2

DECconcentrator 500 Installation

•

DECmcc Bridge Access Module Use (Order No. AA-PD1BC-TE)
This manual describes the DECmcc bridge entity model, entity management,
and the directives necessary to perform typical management operations.

•

DECmcc Concentrator Access Module Use (Order No. AA-PH31A-TE)
This manual describes the DECconcentrator 500 entity model, entity management, and the directives necessary to perform typical management operations.

•

Fiber Distributed Data Interface System Level Description
(Order No. EK-DFSLD-SD)
This manual describes the FDDI system, how it works, and the role of the
individual components.

•

Fiber Distributed Data Interface Network and Configuration Guidelines
(Order No. EK-DFDDI-CG)
This manual describes the guidelines for connecting devices to an FDDI network. It also includes network configurations and examples.

Additional Networking Documentation
Refer to the Network Management Software documentation specific to your network product. Also refer to the following documents for additional information.

•

Networks and Communications Product Documentation
(Order No. EK-NACPD-RE)
This manual lists the title and order number for each publication associated
with Digital’s networks and communications products.

•

Network Troubleshooting Guide (Order No. EK-339AA-GD)
This guide provides an overview of network troubleshooting tools and methodologies, and detailed troubleshooting procedures for specific network products.

•

Networks Buyer’s Guide
This guide describes Digital’s networking products. Contact your local sales
office to receive a copy.