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Document:	861-A,-B,-C,-D,-E,-F Power Controller User's Manual
Order Number:	EK-861AB-OP
Revision:	001
Pages:	26
Original Filename:

OCR Text

861 'A, 'B, 'C, 'D, -E! -F
power controller
user's manual

digital equipment corporation - maynard. massachusetts

861-A, -B, -C, -D, -E, -F
power controller
user’'s manual

EK-861AB-0OP-001

digital equipment corporation - maynard, massachusetts

1st Edition, November 1976

The material in this manual is for informational
purposes and is subject to change without notice.
Digital Equipment Corporation assumes no respon-

sibility for any errors which may appear in this
manual.

Printed in U.S.A.

The following are trademarks of Digital Equipment
Corporation, Maynard, Massachusetts:
DEC

DECtape

DECCOMM

DECUS

PDP

RSTS

DECsystem-10

DIGITAL

TYPESET-8

DECSYSTEM-20

MASSBUS

TYPESET-11
UNIBUS

2/80-14

CONTENTS
Page

CHAPTER 1

INTRODUCTION

1.1

GENERAL DESCRIPTION

1-1

1.2

SPECIFICATIONS

1-1

. .. ... ... ......

1.2.1

Mechanical and Environmental

1.2.2

Electrical

CHAPTER 2

INSTALLATION

2.1

SITE CONSIDERATIONS

2.2

CABLES

2-1

... ... ... ...........

2.2.1

Input Power

2.2.2

Remote Switching Control

223

Output Power

2.3

1-3

GROUNDING

. ... ... .. ......

2-1
ooooooooooooooooooooooo

ooooooooooooooo

ooooooooooooooooo

ooooooooooooooooooooooo

OPERATION

3.1

CONTROLS AND INDICATORS

3.1.1

PilotLamps

24
24

oooooooooooo

CHAPTER 3

2-1
24

oooooooo

3-1

. ... ... ... ......

3-1

3.1.2

Circuit Breaker

3.1.3

LOCAL/OFF/REMOTE Switch

3.14

Remote Switching Control Bus Connectors

3-1

3.1.5

Power Outlets

. .. ... ... ... ..

3.1.6

. . . ..

3-1
ooooooooooooooooooooooo

3-1

ooooooooo

ILLUSTRATIONS
Figure No.

Title

1-1

Simplified Block Diagram — 861-A,-B,-C,-F

1-2

Simplified Block Diagram — 861-D,-E

2-1

Connector Wiring

2-2

Signal Bus Connector

Page

1-2
ooooooooooooooooooooooo

ooooooooooooooo

. . . . . ... ... ..

3-1

Type 861-A,-B,-C Power Controller Panels

3-2

Type 861-D,-E Power Controller Panels

3-3

Type 861-F Power Controller Panel

]

[]

24
3-3
34

TABLES
Table No.

Title

2-1

Input Power Cables

2-2

Input Power Cable Connectors

1-2

. . ... .........
ooooooooooooooooooooooo

861-A,-B,-C,-D,-E,-F POWER CONTROLLER

861-A,-B,-C,-F Power Controller

7570-1

-861-D,-E Power Controller

CHAPTER 1
INTRODUCTION

This manual provides information for installing and
operating the 861-A, 861-B, 861-C, 861-D, 861-E,

and 861-F Power Controllers, designed and manufac-

Figures 1-1 and 1-2 are simplified block diagrams
of the 861 Power Controllers. Four basic functions
are performed:

tured by Digital Equipment Corporation.

control signals of small power content.

1.1 GENERAL DESCRIPTION
The 861 Power Controllers provide a means for controlling and distributing power to data processing

All versions are contained on panels intended for
mounting in racks or cabinets that accept standard

The following versions are available to provide for
a variety of input power configurations:

Convenient

distribution

Filtering of primary power to controlled
devices.

Automatic

removal

of primary

power

from controlled devices in case of overload or overtemperature conditions.
1.2

SPECIFICATIONS

The following specifications are included here for
reference purposes only and are subject to change
without notice.

Version

Voltage

Hertz

Phase

861-A

90-135

47-63

Two (120° or 180° displaced)

861-B

180-270 | 47-63

Single

861-C

90-135

47-63

Single

861-D

90-132

47-63

Three (120° displaced)

861-E

180-264 | 47-63

Three (120° displaced)

861-F

90-135

Single

47-63

of primary

power to controlled devices.

equipment.

19-inch panels. Each power controller requires 353/16 inches of vertical mounting space. The 861-A,B,-C,-F extends 8-1/4 inches into the mounting
rack or cabinet and the 861-D,-E extends 11 inches
into the mounting rack or cabinet.

Control of large amounts of power by

UNSWITCHED
OUTLETS

INPUT

LINE

PILOT

FILTER

CIRCUIT

LAMPS

BREAKER
SPIKE

RELAY

SUPPRESSION
CIRCUIT

REMOTE
OFF

LOCAL
SWITCH

e— POWER

SOV{J'TTLCE“TESD

REQUEST

PILOT

CONTROLke— EMERGENCY SHUTDOWN
CIRCUIT

COMMON

THERMAL

SWITCH

CP-0354

Figure 1-1

Simplified Block Diagram - 861-A,-B,-C,-F

FOUR

PILOT

LIGHTS

15'SJT
CORD *

INPUT

TWIST, | (—
PLUG

‘LINE

FILTER

SwlIJTNC-HED
OUTLETS

CIRCUIT

BREAKER

CEMOTE

SPIKE

__{CONTACTOR

OFF
LOCAL
SWITCH
PILOT

SUPPRESSION
CIRCUIT

TEN

sc‘;’{};fgfig

POWER REQUEST

CONTROL}e— EMERGENCY SHUTDOWN
CIRCUIT

COMMON

THERMAL

*NOTE:

SWITCH

Not supplied

with 861-E

CP-IT35

Figure 1-2

Simplified Block Diagram - 861-D,-E

1-2

1.2.1

Mechanical And Environmental

Frequency

47 Hz - 63 Hz

Dimensions.

861-A,-B,-C,-F: 5 in. h x 19-1/8 in. w x 8 in.

Current

d (1227 cm h x 48.5 cm w x 20.3 cm d)

861-A:

16A

per pole; 861-B:

16A per

pole; 861-C: 24A per pole; 861-D: 24A
861-D,-E,: 5 in. h x 19-1/8 in. w x 11 in. d

per pole; 861-E:

(1227cm h x 48.5cm w x 27.9 cm d)

12A per pole.

Weight

15A per pole; 861-F:

Power Requirements
Full Load

861-A,-B,-C,-F: 10 b (4.54 kg) (approx)

861-A: 3830 VA; 861-B: 3830 VA; 861-

861-D,-E: 27 1b (12.26 kg) (approx)

C:
Cooling Method

2870 VA; 861-D:

8640 VA; 861-E:

10,800 VA; 861-F: 1435 VA

Convection
No Load
Mounting

861-A,-B,-C,-D,-E,-F: 10 VA

Rack (standard 19 in.)
Inrush Current Capability
Ambient Temperature

240 A peak, | cycle

Operating

Leakage Current

861-A,-B,-C,-F: 0° to +60° C

861-D: 1.75 mA max. 861-E: 3.5 mA max.
Input Overvoltage Transient

861-D,-E: 0° to +70° C

180/360 V, 1 sec (power controller alone)

Storage
-40° to 71° C

Activate Time

20 ms (from switch closing to power out)

Relative Humidity
95% max (no condensation)

Deactivate Time

10 ms (from switch opening to power out)
Altitude
861-A,-B,-C,-F: 10,000 ft (max)

Input Breaker

861-D,-E: 8000 ft (max)

861-A,-B,-C: 20 A delayed action, manual reset, magnetic

1.2.2

861-D:

Electrical

delayed

action,

manual

reset,

delayed

action,

manual

reset,

delayed

action,

manual

reset,

magnetic

861-E:

Input Power

magnetic

Voltage

861-A,-C,-F: 90 Vac - 135 Vac; 861-B:

861-F:

180 Vac - 270 Vac; 861-D: 90 Vac - 132

magnetic

Vac; 861-E: 180 Vac - 264 Vac

Phase
861-A:

Thermoswitch

Two (120°

861-B,-C,-F:

Single;

180°

displaced);

861-D,-E:

Opens at 160°F, automatically resets at 120°

Three

F, 49° C (exposed to ambient air external to

(120° displaced)

controller)

1-3

Input Power Connector

Capacitance

861-A: 4-prong twist plug, NEMA* L14-20P;
861-B:

3-prong

twist

plug

NEMA

L6-20P;

861-C:

3-prong

twist

plug

NEMA

L5-30P;

861-D: 5-prong twist plug, NEMA L21-30P;

861-E: pressure fit terminal block;

200 pF (max)

Output (861-A,-B,-C,-F)
Outlets (power)

Twelve (8 switched, 4 unswitched)

861-F: 3-prong standard plug NEMA L5-15P.
Outlet Current Ratings
Hipot

861-A: 12 A per outlet, 16 A per branch

2.1

kVdc

for

60 sec

(input and output to

chassis).

circuit, 32 A total; 861-B: 12 A per outlet,

16 A total; 861-C: 12 A per outlet,

16 A per branch circuit, 24 A total; 861-

Remote Switching Control Connectors
3 each:

F: 6 A per outlet,

Female, AMP 1-480304-0 (DEC-12

8 A per branch cir-

cuit, 12 A total.

09350-03) with AMP 61117-4 (DEC-12-09379)
pins or equivalent that mate with AMP

I-

Outlet Inrush Current

480305-0 (DEC-12-09351) with AMP 61118-4

861-A: 240 A peak per branch circuit (1

(DEC-12-09378) pins or equivalent

cycle), 480 A peak total (1 cycle); 861-B:
240 A peak total (1 cycle); 861-C: 240 A

peak per branch circuit (1 cycle), 360 A

Input Signal Current Levels
861-A,-B,-C,-F: 0.5 mA (min), 10 mA (max);

peak total (1 cycle); 861-F: 120 A peak

861-D,-E:

per branch circuit (1 cycle), 180 A peak

0.5 mA (min), 40 mA (max) load

worst case to each bus signal line when con-

total (1 cycle).

nected to pin 3.

Output (861-D,-E)
Input Signal Voltage Levels

Outlets (power)

861-A,-B,-C,-F: 3.0 V max = low; +35 V min

Fourteen (10 switched, 4 unswitched)

= high (open circuit = high); 861-D,-E: +3.0
V max = low; +32 V min = high. Worst case

Outlet Current Ratings

861-D: 15 A per outlet, 24 A per phase,

to each bus signal line in relation to pin 3.

72 A total; 861-E: 12 A per outlet, 15 A
per phase, 45 A total.
Bus Signal Line Overload Capability

125 Vac rms @ 60 Hz, 13 k) impedance in relation

for

two

seconds

with

Outlet Inrush Current

240 A peak per branch circuit (1 cycle)

damage

All provisions of Underwriters Laboratories Specification UL-478 have been met in the design and
Power Control Impedance

Inductive (diode suppressed)

*National Electrical Manufacturer’s Association

manufacture of the 861-A, 861-B, 861-C, 861-D,
861-E and 861-F Power Controllers.

CHAPTER 2
INSTALLATION

2.1

These cable assemblies are described in the follow-

SITE CONSIDERATIONS

The dimensions of the 861-A,-B,-C, and -F Power

ing paragraphs.

Controllers are identical. Each is contained on a
19-inch panel intended for mounting on a rack or
in a cabinet that accepts standard 19-inch panels.

2.2.1

Each power controller requires 5-1/4 inches of verti-

The type of input power cable depends on which

Input Power

cal mounting space and extends approximately 8

version of the power controller is being installed.

inches into the mounting rack or cabinet. For con-

Table 2-1 describes the input power cables. Cables

venience, the power controller should be mounted
as close as feasible to the units it controls.

The dimensions of the 861-D and -E Power Controllers are identical. Each is contained on a

inch panel intended for mounting on a rack or in a

power controller requires 5-1/4 inches of vertical
space

and

extends

approximately

insulated

stranded

grounded

shield

conductors.
braid

are

(Cables

with

recommended

a
for

EMI/RFI protection.)

19-

cabinet that accepts standard 19-inch panels. Each
mounting

supplied are 15 feet in length and are composed of

inches into the mounting rack or cabinet. For convenience, the power controller should be mounted
as close as feasible to the units it controls.

The

power cable connector types

provided

also

differ depending upon which 861 version is being installed. Table 2-2 lists the plug and receptacle types
with

NEMA

and

DEC

designations.

Figure

2-1

shows the power connector outlines and provides
color coding information.

Ambient temperature at the installation site should
not exceed +60°C; for the 861-A,-B,-C,-F or +70°

The input power cable connects to the 4-terminal

C for the 861-D,-E; relative humidity should re-

block at the side of the line filter. In 861-A installa-

main below 95 percent, with no condensation. For

tions, the following connections must be made:

CABLES

Each power controller requires the following cables:
a.

Remote

Switching

70-08288,

70-10695,

Control,

DEC

No.

or equivalent (not

provided)
c.

White - B (Neutral)

Black - C (Phase 2)

Red - A (Phase 1)

Input Power (provided with 861-A,-B,-

C,-D,-F only)
b.

Green - N (Earth Ground)

Output Power (provided with controlled

units)

861-B

installations

the

following

must be made:
Qoo

2.2

1.2.

other environmental particulars, refer to Paragraph

Green - N (Earth Ground)

White - B (Phase or Neutral)
Black — C (Phase or Neutral)
No Connection - A

connections

Table 2-1
Input Power Cables

Controller

Conductors

Size

Coding

861-A

#12 AWG | Green, black, white, red

861-B

#14 AWG | Green, black, white

861-C

#12 AWG | Green, black, white

861-D

#10 AWG | Green/yellow, black, white, red, orange

R61-E

414 AWG | Green/Yellow, black, black, brown, blue (n
(Shielded)

861-F

#14 AWG | Green, black, white

Table 2-2
Input Power Cable Connectors

861-A

861-B

861-C

861-D

NEMA No.

DEC No.

4-Prong Twist Plug

L14-20P

12-11045

4-Prong Twist Receptacle

L14-20R

12-11046

3-Prong Twist Plug

L6-20P

12-11192

3-Prong Twist Receptacle

L6-20R

12-11191

3-Prong Twist Plug

L5-30P

12-11193

3-Prong Twist Receptacle

L5-30R

12-11194

5-Prong Twist Plug

L21-30P

12-12314

5-Prong Twist Receptacle

L21-30R

12-12315

861-E

(Not provided)

861-F

3-Prong Plug

L5-15P

90-08938

3-Prong Receptacle

L5-15R

12-05351

2-2

RECEPTACLE

PHASE 1

GREEN
EARTH

GROUND

PHASE 2

WHITE
NEUTRAL

\\\ NEMA
L14 - 20R

\\\NEMALJ4-20P

U/W 861-A

PHASE OR
NEUTRAL

(NEUTRAL
PREFERRED)

WHITE

GREEN

BLACK
GROUND

’

NEUTRAL

\\§ NEMA L6-20R

\\ NEMA L6 -20P

U/W 861-8B

NEUTRAL

GREEN

EARTH ‘551’//

GROUND

PHASE

U/W 861-8

WHITE

BLACK {y
\\

NEMA L5-30R
U/W 861-C

EARTH
GROUND

GREEN

NEMA L5-30P
U/W 861-C

BLACK

GREEN/YELLOW

NEUTRAL

WHITE

NEMA L21-30R
U/W

ORANGE

NEMA L21-30P
U/W 861-D

861-D

GREEN

BLACK

GREEN

WHITE

NEMA L5 -15R

U/W

861-F

@
WHITE

BLACK

\\\—’<<NEMA.L5-15P
U/W 861-F

11-3202

Figure 2-1

Connector Wiring

In 861-C,-F installations, the following connections

—

must be made:

Green - N (Earth Ground)

White - A (Neutral)

Black - B (Phase)

861-D

installations,

O-

POWER REQUEST

EMERGENCY SHUTDOWN

SIGNAL RETURN

the following connections

must be made:

—]

o
a0

CP-0355

Green/yellow — N (Earth Ground)
White - (Neutral)

Black - (Phase 1)

Figure 2-2

Signal Bus Connector

Red - (Phase 2)

Orange - (Phase 3)

switched, 4 unswitched). Power cables must be ter-

NOTE

(NEMA 5-15P for the 861-A,-C,-F and NEMA 6-

minated

with

standard

3-prong

male connectors

The 861-E Power Controller is not supplied with an

ISP for 861-B) to mate with the female connectors

ac power cord and connector. It is shipped with a

(NEMA 5-15R for the 861-A,-C,-F and NEMA 6-

strain relief installed. Local electrical codes should be

15R for 861-B) on the panel.

referenced for the size and type of power cord and

Power for the 861-D,-E is provided to controlled

connector used.

units from the 14 convenience outlets (10 switched,
2.2.2

Remote Switching Control

4 unswitched).

Power cables must be terminated

Three female bus connectors, wired in parallel, are

with standard 3-prong male connectors

provided on the front panel for accepting and re-

ISP or 5-20P for the 861-D and NEMA 6-15P for

(NEM AS-

routing the Remote Switching Control Bus. Each is

the

an AMP Mate-N-Lok type AMP 1-480304-0 (DEC-

(NEMA 5-15R or 5-20R for the 861-D and NEMA

12-0-350-3) with AMP G117-4 (DEC-12-09379) pins

6-15R for the 861-E) on the panel.

861-E)

mate

with

the

female connectors

or equivalent,
2.3

GROUNDING

Connections between units are effected with from

A good return ground is essential to proper power

one to three cable assemblies of 3-conductor stran-

controller operation. A secure electrical connection

ded #22 AWG cable terminated at each end with

must exist between the controller and the frame of

male connectors. These are AMP 1-480305 (DEC-

the associated rack or cabinet. To accomplish this,

12-09351) with AMP 61118-4 (DEC-12-09378) pins

(861-A,-B,-C,-F)

or equivalent. Cable assembly details are shown on

washer and a 10-32 bolt with serrated washer in at

drawing DEC-70-08288. Color coding is as follows:

least one of the four mounting holes. For the 861-

use

10-32

nut

with

serrated

D.-E, use a serrated washer and a 10-32 bolt with
a.

Pin 1 - Red

serrated washer in a 10-32 press nut on the rear of

Pin 2 - Black

the controller.

Pin 3 - Green
2.4

INITIAL OPERATION

Remote Switching Control Bus lines connect the

Before applying primary power to the power con-

Signal

troller, determine that the power at the mains is of

Return,

Power

Request,

and

Emergency

Shutdown lines from the processor and system de-

the

vices to the power controller in systems employing

being installed and that all cables are connected

correct value for the particular 861

version

compatible automatic control features. These lines

correctly.

are low for assertion. Figure 2-2 shows one female
NOTE

connector viewed from the front.

If the controller is being installed in a system where
2.2.3

the Emergency Shutdown and Power Request lines

Output Power

are not in use, the LOCAL/OFF/REMOTE switch

Power for the 861-A,-B,-C,-F is provided to controlled units from the 12 convenience outlets (8

must be in the LOCAL position.

2-4

In systems where the Emergency Shutdown and

rect for the power controller in use, the power con-

Power Request lines (or their equivalents) are to be

troller should be shut down, the loads connected to

used, provistons must exist for connecting pin 1 to

the switched and unswitched outlets*, and the circuit

pin 3 when normal operation is desired (power is

breaker(s) thrown ON again. The system

supplied

now operate. If the circuit breaker trips, or other

the

controlled

devices

through

the

should

switched outlets). Provision must also exist for con-

abnormality exists, refer to the maintenance informa-

necting pin 3 to pin 2 if an Emergency Shutdown

tion in Chapter 5 of the 861-A-F Power Controller

feature is to be implemented.

Maintenance Manuall.

Once it has been determined that correct power ex-

that the power controller responds properly to shut-

ists at the mains and that all cabling is correct, and
before connecting any devices to the power outlets,
connect the controller power plug to the appropriate receptacle. All pilot lamps on the panel should
light. The circuit breaker(s) on the panel should be
thrown to the ON position and the LOCAL/OFF/REMOTE switch to the LOCAL position. Measure the voltage at the switched and

down requests from each external device.

unswitched outlets. If the measured values are cor-

removed.

If the Emergency Shutdown feature is in use, check

Also, if required, the operation of the thermally-activated overtemperature switch can be checked by
holding a match in proximity to the sensing element and observing that the switched outlets are

disabled. The thermal switch should reset automatically

after

brief period,

once

*Loads should be balanced between circuits.

2-3

the

flame

CHAPTER 3
OPERATION

3.1

CONTROLS AND INDICATORS

The following are the outlet current ratings:

Figure 3-1 shows the front panels for the 861-A,
861-B and 861-C Power Controllers. Each version

has two pilot lamps, a circuit breaker, a 3-position
toggle switch, and several power outlets. Their functions are discussed in the following paragraphs.
Figure 3-2 shows the front and back panels for the
861-D and 861-E Power Controllers. Each version
has three pilot lamps, a main circuit breaker, a 3-

position toggle switch, and several power outlets. In
addition, the 861-D has six branch circuit breakers.

Their

functions

are

discussed

the

Version

Per Outlet | Per Branch/Phase

Total

681-A

12A

16A

681-B

12A

16A

32A

16A

861-C

12A

16A

24
A

861-D

15A

24A

T2A

861-E

12A

15A

45A

861-F

12A

following

paragraphs.
Figure 3-3 shows the front panel

for the 861-F

Power Controller. Controls, indicators and outlets

3.1.3

LOCAL/OFF/REMOTE Switch

are the same as for the 861-C.

The LOCAL/OFF/REMOTE switch provides the
Remote Switching Bus with the means to control

3.1.1

the power to the switched outlets. When the power
controller is energized and the switch is in the OFF

Pilot Lamps

In all 861 Power Controller versions, all pilot lamps

are lighted

whenever the controller input power

position, the switched outlets are disabled. When in

the

REMOTE position

and connected to a bus

cable is connected to the live mains, regardless of

where

the position of the power controller circuit breaker

are in use (or a means of effecting connection be-

or LOCAL/OFF/REMOTE switch.
3.1.2

Circuit Breaker

Circuit breaker CB1, when ON, provides power to
the unswitched outlets, and to the switched outlets
when the LOCAL/OFF/REMOTE switch is in the

Power

Emergency Shutdown signal is not asserted.

parallel.

tion of the LOCAL/OFF/REMOTE switch.

Shutdown

conditions on the bus. When in the LOCAL position, the switched outlets are enabled only when the

breaker opens automatically when an overload con-

*A connection bBetween pins 2 and 3 of the Remote Switching
Control Bus disables the switched outlets, regardless of the posi-

Emergency

tween pin 3 and pins | or 2 exists), the switched

3.1.4

dition exists at a power outlet or within the power

and

outlets are enabled or disabled in accordance with

LOCAL position (or in the REMOTE position and
a connection exists between pins 1 and 3 of a Remote Switching Control Bus connector*). The circuit

controller.

Request

Remote Switching Control Bus Connectors
The three female Signal Bus connectors, adjacent to
the LOCAL/OFF/REMOTE switch, are wired in
These connectors provide a means of
daisy-chaining the Remote Switching Control Bus
between the controller and system devices.

SWITCHED

ClRCU|T
TWO

ClFCng

CIRCUIT
ONE
_

CIRCUIT

3 POLE

58, 100"

(D))
LD

REMOTE

°N

LocaL

UNSWITCHED

cmcunr

cmcun

NI @@

4 WIRE 16A

olgio

CP-0376

861-A

SWITCHED

POWER CONTROL 8618

REMOTEOFF

LOCAL

UNSWITCHED

INPUT 240V 50-6

2 POLE 3 WIRE 16A

@@l@ @@

('D(--)(X)

]

CP-0375

861-B

SWITCHED

Cl?CSIT

CIRC%i

ClRCUlT

POWER CONTROL 06‘IC

INPUT 120V 50-60
H
2 POLE 3 WIRE 24A

RCUIT

REMOTEO

LOCAL

UNSWITCHED

*‘écmIk

cmcun

@@@@ (D

CP-0374

861-C

Figure 3-1

Type 861-A,-B,-C Power Controller Panels

3-2

y-4

PHASE 3

FSWITCHED

= [,
$e1-0

g 3 PHASE S WIRE zu/nus:

REMOTE LOCAL

— E) on @l on
m
CIRCUIT 4 | @

At oo

o Q

0 @® MAIN POWER

PHASE

§-CIRCUIT 4

UNSWITCHED

©@@

adfanbafhs A © @ @
®

CIRCUIT 2

p———— $WITCHED

CIRCUIT ¢

@15 AMPS AT 120 VOLTS

CIRCUIT 2

MAXIMUM PER CIRCUIT

@@@®@@@®@

—

O |

puase

—

€ 2

PHA
3 ———
SE

Lcmcun 2 —A—CIRCUIT

CIRCUIT 2 —-‘ CIRCUIT§

CIRCUIT 2 «d

861-D (Back Panel)
,

o
@

o,
POWER

CONTROL 861-E

g INPUT 240 50/60 HZ

g 3 PHASE 5 WIRE 1SA/PHASE
REHOTE \

F____PN:::'I
C’I.R%UITl _T

LOCAL

ALL QUTLETS
ON REAR OF

5‘1‘.’.’.‘»%708%’{‘27"‘35 ‘Sm“}’p‘.’.?&?

ARE SWITCHED

®
861-E (Front Panel)

PHAYJE {

PHASE 2

PHASE 3

LCINCUIT 2 —Jk-ClICUlT1 CIRCUIT 2 —J CIRCUIT! = CIRCUIT 2 e
CP-1730

861-E (Back Panel)
Figure 3-2

Type 861-D,-E Power Controller Panels

3-3

CIRCUIT

SWlTCHED

CIRCU!T

CIRCUlT

C'RCU'T

POWER CONTROL 861F
INPUT 120V 50- 6102AZ

2 POLE 3 WIRE

REMOTE
ON
oFF

UNSWITCHED

LOCAL
ON

CIRCUIT
TWO

CIRCUIT
N

WG -)('D)()

S
CP-1731

Figure 3-3

3.1.5

Type 861-F Power Controller Panel

Power Outlets

LOCAL/OFF/REMOTE switch in the

Two groups of power outlets are provided on the

REMOTE

panel. The group containing eight (861-A,-B,-C,-F)

connection exists between the lines asso-

or ten (861-D,-E) receptacles is the switched group.

ciated with pins 3 and 2 of the Remote

Under
these

normal
outlets

conditions,
when

the

power is available at

LOCAL

position

and

Switching Control Bus connectors (Emer-

LOCAL/OFF/REMOTE

gency Shutdown signal asserted).

switch is in the LOCAL position, or when in the
REMOTE position and a connection exists between

Overtemperature switch closed.

pins |1 and 3 of the Remote Switching Control Bus

connector. Power is removed from these outlets by

The group containing four power outlets is not con-

any of the following:

trolled

the

Remote

Switching

Control

Bus.

Power is available at these outlets when the main

Main circuit breaker in OFF position,

circuit breaker is closed and the power controller is

(or branch circuit breakers OFF if 861-

connected to the live mains. (861-D:

D.)

cuit breaker also closed.)

LOCAL/OFF/REMOTE switch in the

3.1.6

OFF position.

branch cir-

Overtemperature Switch

A thermally-activated switch is provided to disable

LOCAL/OFF/REMOTE switch in the
REMOTE position and no connection
exists between the lines associated with
pins 1 and 3 of the Remote Switching

the

controlled

outlets

Control Bus Connectors.

troller drops below 120° F.

the

event

of an

over-

temperature condition at the power controller. The
switch opens at

160° F and resets automatically

when the ambient temperature at the power con-

3-4

861-A, B,C, D, E, F POWER CONTROLLER

’

Re ad €r s C omments

USER’S MANUAL

EK-861AB-OP-001

Your comments and suggestions will help us in our continuous effort to improve the quality and usefulness of
our publications.

What is your general reaction to this manual? In your judgment is it complete, accurate, well organized, well

written, etc.? Is it easy to use?

What features are most useful?

What faults do you find with the manual?

Does this manual satisfy the need you think it was intended to satisfy?
Does it satisfy your needs?

Why?

Would you please indicate any factual errors you have found.

Please describe your position.

Name

Organization

Street

Department

City

State

Zip or Country

FIRST CLASS

PERMIT NO. 33
MAYNARD, MASS.

BUSINESS REPLY MAIL

NO POSTAGE STAMP NECESSARY IF MAILED IN THE UNITED STATES
Postage will be paid by:

Digital Equipment Corporation

Technical Documentation Department
Maynard, Massachusetts 01754

DIGITAL EQUIPMENT CORPORATION mmn WORLDWIDE SALES AND SERVICE
Maynard,

MAIN OFFlCE AND PLANT
ston 6468600 « Elsewhere. (617)-891-5111

L US.A 01754

TIOSAPGEi2Canler IGTTAL MAYS Toie

ooty

DOMESTIC
NORTHEAST

MID-ATLANTIC (cont.)

Telephone: (617)-890-0330/0310

Dataphone: 617-890-3012
or 3013

CONNECTICUT

(609)-452-2940

Dataphone

Ann Arbor

609-452-2940

240 Pomeroy Ave . Meriden, Conn, 06540
Telephone (203)-237-8441/7466
Dataphone

Long Island
203-237-8205

1275 Post Road. Fairfield. Conn 06430
Telephone (203)-255-5991

Dataphone

NEW YORK

Allens Creek Road.

Rochester.

(716)-461-1700

New York

Dataphone

716-244-1680

Syracuse

Telephone:
soor

ARIZONA

(313)-761-1150

189

SRS W 4

5162935693

Dataphone: 313-769-9883

New York. NY. 10019
Telephone (212)-582-1300

2110 S

San Diego
6154 Mission Gorge Road
Suite 110, San Diego, California
Telephone (714)-280-7880/7970

12401 East 43rd Street, Independence, Missouri 64055

MASSACHUSETTS

Telephone. (215)-825-4200

St Louss
Suite 110, 115 Progress Parkway

TENNESSEE

Knoxville
Telex

710-347-0348

MID-ATLANTIC
U'S. Route 1. Princeton. New lersey 08540
Telepnone (609)-452-2940
FLORIDA

Orlando
Suite 130, 7001 Lake Ellenor Drive. Orlando, Florida 32809

Telephone

(305)-851-4450

Dataphone: 305-859-2360

GEORGIA

(615)-588-6571

Dataphone:

615-584-0571

Dataphone:

305-859-2360

NORTH CAROLINA

Executive Park
3700 Chapel Hill Bivd
Durham. North Carolina 27707
Telephone: (919)-489-347
Dataphone:

(312)-498:2500

INDIANA

919-489.7832

(317)-243-8341

(201)-227-9280

Dataphone:

Metuchen

201-227-9280

New lersey 08840

Telephone: (201):549-4100/2000

Dataphone: 201-548-0144

Dataphone:

Dataphone

icago

Kettering Boulevard

312-498-2500

714-979-7850

Dataphone 714-280-7825

(415)964-6200

Dataphone:

415-964-1436

Oakland

Dataphone: 415-562-2160

West Los Angeles
1510 Cotner Avenue. Los

(213)-479-3791/4318

les, California 90025
Dataphone: 213-478-5626

COLORADO

Dayton, Ohio 45439
Telephone (513)-294-3323

Dataphone:

513-298-4724

OKLAHOMA

7901 E. Bellevue Avenue

Suite S, Englewood. Colorado 80110
Telephone:

Winston Sq.

Bldg . Suite 4. Tulsa. Oklahoma 74135

Telephone:

(918)-749-4476

Dataphone: 918-743-2714

PENNSYLVANIA

(303)-770-6150

Dataphone:

(412)-243-9404

Dataphone:

412-824-9730

Dallas
Plaza North, Suite 513
2880 LBJ Freeway. Dallas. Texas 75234
Telephone: (214)-620-2051
Dataphone: 214-620-2061

303-770-6628

NEW MEXICO

Albuquerque

)

10200 Menual N E ., Albuquerque. New Mexico 87112

Telephone: (505)-296-5411/5428

Pittsburgh

HOUSTON

linois 60062

Telephone

400 Penn. Center Boulevard, Pittsburgh. Pennsylvania 15235

317-247-1212

Dataphone:

Telephone («5}355&/1:!1
2169468477

TEXAS

1850 Frontage Road

Metuchen

3101

(714).979-2460

7850
Edgewater Drive. Oakland. California 94621

Dayton

Telephone
Indiana 46224

ILLINOIS

253 Passaic Ave. Fairfield. New lersey 07006
Telephone

312-498-2500

Indianapolis

Fairfield

95 Main Street.

Dataphone

Ex 78

Indianapolis.

NEW JERSEY

816-461-3100

3140 S. Winston

REGIONAL OFFICE:

Telephone

(216):946-8484

Anne Street, Santa Ana, California 92704

Telephone:

1400 Terra Bella. Mountain View. California 94040

Tulsa

CENTRAL

21 Beachway Drive. Sutte G

Durham/Chapel Hill

Telephone

mmun

Santa Ana

San Francisco

Cleveland
2500 Euclid Avenue, Euclid. Ohio 44117

WASHINGTON D C
Lanham 30 Office Building
4900 Princess Garden Parkway. Lanham. Maryland
Telephone (301)-459-7900
Dataphone 301-459-7900 X53

Telephone

2815 Clearview Place, Suite 100

Dataphone: 816-461-3100

OHIO

1850 Frontage Road. Northbrook. lilinois 60062

Atlanta

Atlanta, Georgia
Telephone: (404)-451.7411

(816)-252-2300

Maryland Heights. Missouri 63043
Telephone: (314)-878-4310
Dataphone:

6311 Kingston Pike, Suite 21E
Knoxville. Tennessee 37919

Telephone:

REGIONAL OFFICE:

Dataphone

MISSOUR!

Telephone

Marlborough

(602)-268-3488

8030 Cedar Ave South, Minneapolis. Minnesota
Telephone (612)-854-6562-3-4.5
Dataphone: .l?fl“‘o

Philadelphia

Marlborough, Mass. 01752
Telephone (617)-481-7400

Telephone

CALIFORNIA

Digital Hall

One Iron Way

313-557-3063

MINNESOTA

6700 Thompson Road. Syracuse. New York 13211
Telephone (315)-437-1593/7085
Dataphone 315-454-4152

1740 Walton Road. Blue Bell. Pennsylvania 19422

Dataphone: 408-735-1820

Dataphone

Kansas City

PENNSYLVANIA

(408)735.9200

4358 East Broadway Road. Phoenix. Arizona

Minneapolis

810 7th Ave . 22nd Floor

Rocgester

Telephone:

Suite

Manhattan

REGIONAL OFFICE:
310 Soquel Way. Sunnyvale. California 94086

230 Huron View Boulevard, Ann Arbor, Michigan 48103

23777 Greenfield Road

Huntington Quadrangle

Suite 1507 Huntington Station. New York 11746

Telephone (516)-694-4131 (212).895 8085

Fairfield

Telephone

WEST

MICHIGAN

U'S Route 1. Princeton, New lersey 08540

NEW YORK

Meriden

130

CENTRAL (cont.)

Princeton

REGIONAL OFFICE:

Wymmsvm Waltham, Mass. 02154

Dataphone:

505-294-2330

OREGON
Portland
Suite 168
5319 S W Westgate Drive. Portland. Oregon 97221
Telephone:

(503)-297-3761/3765

UTAH

Salt Lake City
429 Lawn Dale Drive. Salt Lake City. Utah 84115
Telephone (801)-487.4669
Dataphone 801-467-0535

665 Hornwood Drive

LOUISIANA

Monterey Park. Houston. Texas 77036
Telephone: (713)-777-3471
Dataphone:

New Orleaos

WISCONSIN

Bellevue

Milwaukee

13401 N E. Bellevue, Redmond Road. Suite 111
Bellevue. Washington 98005
Telephone (206)-545-4058/455-5404
Dataphone

3100 Ridgelake Drive, Suite 108

Metairie. Louisiana 70002
Telephone: (504)-837-0257

Dataphone: 504-833-2800

713-777-1071

8531 West Capitol Drive. Milwaukee, Wisconsin 53222
Telephone: (414)-463.9110
Dataphone: 414-463-9115

WASHINGTON

206-747-3754

INTERNATIONAL
Digital Equipment Corporation International Europe

UNITED KINGDOM (cont.)
READING
Fountain House. Butts Centre

Telephone 427950

Telephone (0734)

Reading AG! 70N, England

Telex: 22 683

FRANCE

Telephone

687-23.33

212-32882

MUNICH

Telex:

Aachener Strasse 311

0221-44-40-95

Telex

888-2269

Flip Chip Koeln

FRANKFURT

061025526

Telex:

41-76-82

HANNOVER
922-952

(0771)-4570 65

Telex

841.722-393

Diqital Eqmpmm Corporation Ges mb H
Mnrlnh:"arslr‘\lu 136. 1150 Vienna 15. Austria
85 51 86

Telephone

UNITED KINGDOM
Diqital Equipment Co

Reading RG1 70N.

29/31 Birmingham Rd

B4R3278

Sutton Coldfield

SWITZERLAND

Telex

337-060

BRISTOL
Fish Ponds Road_Fish Ponds

Telex

289201

Schatfhauserstr
CH.80%0 Zurich.

Uxbridge Road. Ealing. London W 5
Telex 2231

01-579-2334

727113

43 Parker St

Holborn. London

WC 2B SPT. England
Telephone 01-405.2614/4067

TWX:

710-347-0217/0212

Cable

DIGITAL MAYN

Telex

94.8457

01 4641 91

Telex

27560

Telex

printed in U.S.A.

247411

Ltd

Coasin Chile Lida (ulu only)
Casilla 14588. Correo
Telephone

790-82825

Clbla COACHIL

396713

INDIA
Hinditron Computers Pvt

69/A.

CANBERRA
27 Collie St
Fyshwick

A C T

Telephone

(062)-959073

Telephone

Cable

38-1615 36-5344

TEKHIND

Telex 011-2594 Plenty

MEXICO

2609 Australia

MEXICO CITY
Mexitek, S A

Eugenia 408 Deptos

South Melbourae.

(03)699-2888

Ltd
Jagmohandas Marg

Bombay-6 (WB) India

Victoria 3205

Telex

Apdo

Postal 12-1012

Mexico 12D F

790-30700

Telephone

Telex

790-92140

Stanford Computer Corporation

Telex

79020740

(905) 536-09-10

PERTH
Equipment

Corso Garbaldi 49 20121 Milana.

Italy

Telephone

Telex

(02)-879-051/2/3/4/5

PHILIPPINES

643 Murray Street

S p A

843-33615

West Perth.

Western Australia 6005

Telephone

(092)-21 4393

MANILA
PO

SYDNEY

P O

Crows Nest
Australia 2065

Telephone

(02)439.2%5

Ataio Ingenieros S A
Telephone

221 44
66

Madrid 16

Digital Equipment Corporation Ltd

AUCKLAND

Hilton House. 430 Queen Street.

Granduxer 76.

7420352

VENEZUELA

Ataio Ingenieros S A . Enrique Larreta 12
2153543
Telex 27249

Telephone

Box 1608

416 Dasmarinas St . Manila
Telephone 43.68.96
Telex

Box 491,

NSW

BARCELONA
Manchester M3? 98H

Rua Coronel Vicente 421/101
Porto Alegre — RS

CHILE

Brishane. Queensland. Australia 4000
Telephone (072)-793088
Telex 790-40616

Telephone

Digital Equipment Corporation Ltd

House

PORTO ALEGRE — RS

SANTIAGO

MADRID

MANCHESTER

Telephone: 52-7806/1870. 51-0912

Telephone

Australia
56059

SA0 PAULO

BOMBAY

60 Park Street

Swatzerland

SPAIN

House

Massachusetts 01754

MELBOURNE

ITALY
Digtal

Management

(061)-865-7011

319

MILAN

| wingston

LONDON

Chester Road_Stretford

022 2C 4C 20 and 20 58 92 and 20 68 93

ZURICH

Telephone

West Lothian. Scotlani
Telephone 32705
Telex

Maynard.

(617) 897-5111

133 Leichhardt Street

Digital Equipment Corp

EALING
Bilton House.

Rio De Janeiro —

610-929-2006

Spring Hill

Quai Ernest Ansermet
Boite Postale 23. 1211 Geneva 8, Switzerland

Ambriex S A

GENERAL INTERNATIONAL SALES

Digital Equipment Australia Pty

Digital Equipment Corporation S A

Telephane No

England

EDINBURGH
Shiel House. Craigshill.

Telex

ADELAIDE

20.

Bristol Enaland BS163HQ
Telephone Bristol 651-431

Telephone

(604)-325-3231

6 Montrose Avenue
Norwood South Australia 5067
Telephone (08)-42-1339
Telex

(090) 370133

Telex 012-2284

Rua Ceara. 104. 2 e 3 andares ZC - 29

AUSTRALIA

Digital Equipment AB
HELSINKI
Titismaantie 6

GENEVA

021-355.5501

403-255-7408

BRISBANE

Telex

Buildings

Warwickshire.

TWX.

From Metropolitan Boston. 646-8600

FINLAND

523185

RIO DE IANEIRO — GB

Telephone 2‘4-7“/0‘1 /7625

146 Main Street.

Cable Digita! Helsinki

England

(0734)-583555

(403) 435-4881

Virrey del Pino. 4071. Buenos Aires

Telephone

Suite 202
644 SW Marine Dr , Vancouver
British Columbia. Canada V6P 5Y1

Telephone

Hellerupveg 66

Barcelona
6

385-9056

BRAZIL

REGIONAL OFFICE

COPENHAGEN

Telephone

Ltd

BIRMINGHAM

Telephone

19079 DEC N

SF-00710 Helsinki 71

UK HEADQUARTERS
Fountain House. Butts Centre

Arndale

Telex

2900 Hellerup. Denmark

VIENN.

Telephone

Telephone 02/60 34 40

Telex

VANCOUVER

Telephone

Digital Equipment Aktiebolag

AUSTRIA

Maney

Trondheimsveien 47

DENMARK

Stuttqart

Marco-Polo-Strasse 1

Telephone

osLo

Oslo 5. Norway

3 Hannover. Podbielskistrasse 102
Telephone 0511-69-70-95
Telex:

Telephone

Digital Equipment Corporation De Puerto Rico
407 del Parque Street
Santurce. Puerto Rico 00912
Telephone (809)-723-8068/67

Coasin S A

610-422-4124

Calgary. Alberta. Canada

A/S

781-4208

ARGENTINA

CALGARY /Edmonton
Suite 140, 6340 Fisher Road S E.

Digital Stockholm

Telex:

BUENOS AIRES

9045 Cote De Liesse
Dorval. Quehec. Canada HIP 2Mg
Telephone (514)636-9303
Telex

Englundavagen 7. 171 41 Solna, Sweden
Telephone 98 1390
Telex 173 50

Cable

TWX: 610-562-8732

MONTREAL

Digital Equipment AB
STOCKHOLM

Digital Equipment Corp.

Am Forstaus Gravebruch 5-7

STUTTGART
D-7301 Kemnat.

25297

NORWAY

6078 Neu-Isenburg 2
Telephone

Telex

SWEDE|

524-226

COLOGNE
5 Koeln 41
Telephone

02-139256

(613)-532-5111

18-14 Nishishimbashi 1-Chome

PUERTO RICO

TORONTO
2550 Goldenridge Road. Mississauga. Ontario
Telephone (416)-270-9400
TWX. 610-492-7118

108 Rue D'Arlon

1040 Brussels. Belgium

8 Muenchen 13, Wallensteinplatz 2

0811-35031

Ottawa. Ontario, Canada

BRUSSELS

Telephone:

Digital Equipment GmbH

Minato-Ku, Tokyo. Jap: an

Telephone: 5915246

Box 11500

K2H 8K8
Telephone:

Digital Equipment N.V /S A

Telex

GERMAN FEDERAL REPUBLIC

Telephone

P O

BELGIUM

France

Telex: 922-33-3163

CANADIAN HEADQUARTERS

Piiswijk/The
Hague. Netherlsnds

Telex: 32533

(76)-87-56-01

Digital Equipment Corporation International

Tel Aviv. Israel
Telephone: (03) 443114/440763

Digital Equipment of Canada, Ltd.

Sir Winston Churchillian 370

26840

JAPAN
Kowa Building No. 16 — Annex, First Floor
9-20 Akeseka 1
Minato-Ku

Suite 103, Southern Habakuk Street

CANADA

THE HAGUE

Telex

Digital Equipment France
Tour Mangin
16 Rue Du Gal Mangin
Telephone:

8483278

Digital Equipment N.V.

GRENOBLE

38100 Grenoble.

Telex

NETHERLANDS

Digital Equipment France
Centre Silic — Cidex L 225
94533 Rungis. France

ISRAEL

TEL AVIV

DEC Systems Computers Ltd

81 route de I'Aire
1211 Geneva 26. Switzerland

Box 2471

CARACAS
Coasin. CA
Apartado 50939

Sabana Grande No 1.

Auckland.

New Zealand

Telephone

75533

Cable

72-8662.

INSTRUVEN

Caracas 105

72-9637