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EK-SWCDU-IS-A01

October 1993

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Document:	StorageWorks SW800 Series Cable Distribution Unit Installation
Order Number:	EK-SWCDU-IS
Revision:	A01
Pages:	10
Original Filename:

OCR Text

StorageWorks SW800 Series Data
Center Cabinet
Cable Distribution Unit
Installation Guide
Order Number: EK–SWCDU–IS. A01
This document contains instructions for replacing StorageWorks™
SW800 data center cabinet cable distribution units (CDUs) and for
installing the dual power option.

Digital Equipment Corporation
Maynard, Massachusetts

October 1993
While Digital believes the information included in this publication is correct as of the date of
publication, it is subject to change without notice.
Digital Equipment Corporation makes no representations that the interconnection of its products
in the manner described in this document will not infringe existing or future patent rights, nor
do the descriptions contained in this document imply the granting of licenses to make, use, or sell
equipment or software in accordance with the description.
© Digital Equipment Corporation 1993
All rights reserved.
Printed in the United States of America.
NOTE: 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 digital device pursuant to Part
15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation.
Any changes or modifications made to this equipment may void the user’s authority to operate the
equipment.
Operation of this equipment in a residential area may cause interference in which case the user
at his own expense will be required to take whatever measures may be required to correct the
interference.
The equipment described in this manual is listed by the Underwriters Laboratories Incorporated
and bears the UL Listing mark. SW500-series cabinets are also certified by the Canadian Standards
Association and TÜV Product Service GmbH and bear both the CSA certification and TÜV GS
marks. The equipment also complies with the requirements for CE-mark Class A.
Das in diesem Manual beschriebene Gerät wurde von TÜV Produkt Service GmbH auf Sicherheit
geprüft and trägt das GS Zeichen. Bitte beachten Sie, daß Eingriffe in das Gerät, Reparaturen
oder der Einbau von Erweiterungen nur von Digital Personal erfolgen darf, da sonst die GS
Zulassung ungültig wird. Die Zulassung wird auch ungültig, wenn nicht von Digital qualifizierte
Speichererweiterungen eingebaut werden.
Das Gerät muß so aufgestellt werden, daß die Steckdose frei zugänglich ist.
StorageWorks and the DIGITAL logo are trademarks of Digital Equipment Corporation.

This document was prepared using VAX DOCUMENT Version 2.1.

1 Cable Distribution Unit Replacement Procedure
The following procedure describes how to install a replacement cable distribution
unit (CDU).
1. Check the contents of the field-replaceable unit (FRU) kit against the
appropriate parts list shown in Tables 1 and 2 to verify that it is complete.
Table 1 Cable Distribution Unit 60 Hz FRU Kit Parts List
Kit part number 70–30101–03 (120/208V, 60 Hz)
Digital Part Number

Description

Quantity

EK–SWCDU–IS

CDU installation guide

90–00063–39

Screw, #10 Phillips, 1/2"

90–07032–00

U-nut, #10

70–30101–01

Cable distribution unit, 60 Hz

Table 2 Cable Distribution Unit 50 Hz FRU Kit Parts List
Kit part number 70–30101–04 (380-415V, 50 Hz)
Digital Part Number

Description

Quantity

EK–SWCDU–IS

CDU installation guide

90–00063–39

Screw, #10 Phillips, 1/2"

90–07032–00

U-nut, #10

70–30101–02

Cable distribution unit, 50 Hz

2. If the CDU to be replaced is installed in a single power system, spin down all
disk drives and halt all tape drives in the cabinet.
(This step may not be necessary if the cabinet is configured with the dual
power option. The system can be left turned on while the defective CDU is
replaced.)
WARNING
Hazardous voltage is present within the cabinet. Use extreme caution
when working around components to which power is applied.

3. Open the cabinet door to expose the CDU to be replaced.
4. Switch the circuit breaker on the front panel of the CDU to the
position.

(OFF)

5. Disconnect the CDU’s primary power cable from the power source.
6. While supporting the CDU, remove and retain the screws holding the CDU to
the cabinet chassis rails.
WARNING
Cabinet rail edges may be sharp and can slice or abrade skin and cable
insulation.

7. Gently pull the CDU from the cabinet while carefully guiding the cables
attached to it through the cabinet openings.
8. Support the CDU while disconnecting the ac power cables from its rear panel.
The cables need not be labeled.
9. Remove the CDU completely from the cabinet while guiding the primary
power cable through its cabinet openings.
10. Guide the primary power cable of the replacement CDU back through the
same cabinet openings and position the CDU near the previously-removed
power cables.
11. Connect the power cables to the connectors on the rear panel of the CDU,
starting at the top-most connector and working down.
12. Slide the CDU into its mounting position while guiding the cables through
the openings in the cabinet.
13. Mount the CDU using the screws retained in step 6.
14. Connect the CDU’s power cable to the appropriate power source.
15. Switch the front-panel circuit breaker on the CDU to the (ON) position.
16. Close and secure the cabinet door.
17. Restart all disk and tape drives and check them for proper function.

2 Data Center Cabinet Dual Power Option Installation Procedure
The following procedure describes how to install the dual power option kit.
1. Check the contents of the dual power option kit against the appropriate parts
list shown in Tables 3 and 4 to verify that it is complete.
Table 3 SW800 Series Data Center Cabinet 60 Hz Dual Power Option Kit Parts
List
Kit option number SW8xP–AA (120/208V, 60 Hz)
Kit part number 70–30101–05
Digital Part Number

Description

Quantity

EK–SWCDU–IS

CDU installation guide

90–00063–39

Screw, #10 Phillips, 1/2"

90–07032–00

U-nut, #10

70–30101–01

Cable distribution unit, 60 Hz

17–03718–03

Cable, ac power, gray, 5’

17–03718–05

Cable, ac power, gray, 7’

17–03718–07

Cable, ac power, gray, 9’

74–44473–02

Filler panel

36–38274–01

Label, ID

Table 4 SW800 Series Data Center Cabinet 50 Hz Dual Power Option Kit Parts
List
Kit option number SW8xP–AB (380-415V, 50 Hz)
Kit part number 70–30101–06
Digital Part Number

Description

Quantity

EK–SWCDU–IS

CDU installation guide

90–00063–39

Screw, #10 Phillips, 1/2"

90–07032–00

U-nut, #10

70–30101–02

Cable distribution unit, 50 Hz

17–03718–03

Cable, ac power, gray, 5’

17–03718–05

Cable, ac power, gray, 7’

17–03718–07

Cable, ac power, gray, 9’

74–44473–02

Filler panel

36–38274–01

Label, ID

2. See Figure 1 to familiarize yourself with the location and identification of
each of the CDUs to be configured for the dual power option.
3. Spin down all disk drives and halt all tape drives in the cabinet.
4. Open the rear cabinet door to expose CDU A.
5. Switch the circuit breaker on the front panel of the CDU to the
position.

(OFF)

Figure 1 CDU and Label Locations

CAUTION
LABEL

B
B
B

CDU B
LABEL

A
A
A

CDU B

CABINET FRONT

CDU A

CDU A
LABEL

CABINET REAR
CXO-3777A-MC

6. Disconnect the CDU’s primary power cable from the power source.
7. Isolate the cabinet electrically by powering down the host computer.
NOTE
In some cases, it may be desirable to allow the host computer system
to operate while the dual power option kit is being installed. In this
instance, the cabinet may be isolated from power by disconnecting the
host computer interface cable(s). Refer to the documentation for the host
computer configuration for the steps necessary to disconnect the cables.

8. To install CDU B, there must be free access to the interior area of the front
and rear CDU mounting slots. If necessary, gain access to the cabinet interior
by separating the cabinet from adjacent ones and removing its side panels.
Refer to the SW800 Series Data Center Cabinet Installation Guide for details
on cabinet hardware.

WARNING
Cabinet rail edges may be sharp and can slice or abrade skin and cable
insulation.

9. Remove the new CDU (to be installed as CDU B) from its packing material.
Thread the primary power cable through the cabinet as shown in Figures 2
and 3.
10. Using the hardware provided in the kit, mount CDU B to the cabinet chassis
rails as shown in Figure 2.
11. The installation of filler panels next to the CDUs is optional. If required by
the configuration of your cabinet, install the two filler panels from the kit as
shown in Figures 2 and 3.
Figure 2 CDU B Installation
U-NUT
(5 PLACES)

U-NUT
(4 PLACES)

SEMS
SCREWS
(5 PLACES)

CDU B
PRIMARY
POWER
CABLE

SEMS
SCREWS
(4 PLACES)

FILLER
PANEL

CDU B
CXO-3778A-MC

Figure 3 Rear Filler Panel and Power Cable Installation

U-NUT
(5 PLACES)

SEMS
SCREWS
(5 PLACES)

FILLER
PANEL

CDU B
PRIMARY
POWER
CABLE

CDU A

CDU A LABEL
CDU B LABEL
A

CXO-3818A-MC

NOTE
To prevent confusion resulting from the fact that the cabinet uses two
power cables with the dual power option, it is important that safety labels
be properly applied. Install the cable and cabinet labeling carefully in
accordance with the instructions in steps 12 through 16.

12. Remove one of the yellow "A" labels in the kit from its backing paper and
place it on the filler panel next to CDU A as shown in Figure 1. If the filler
panel is not used in your cabinet configuration, wrap the label around the
primary power cable of CDU A as close to the unit as possible.

13. Remove another of the yellow "A" labels in the kit from its backing paper and
wrap it around the plug end of the primary power cable of CDU A as shown
in Figure 3.
14. Remove one of the yellow "B" labels in the kit from its backing paper and
place it on the filler panel next to CDU B as shown in Figure 1. If the filler
panel is not used in your cabinet configuration, wrap the label around the
primary power cable of CDU B as close to the unit as possible.
15. Remove another of the yellow "B" labels in the kit from its backing paper and
wrap it around the plug end of the primary power cable of CDU B as shown
in Figure 2.
16. Remove the two yellow "CAUTION" labels from their backing papers and
place them at eye level on the inside of each door as shown in Figure 1.
17. Ensure that the second dc power supply required for the dual power option is
installed in each shelf.
18. A complete set of gray ac power cables of various lengths is supplied in the
kit. The ac power cables for each shelf location must be of a minimum length
to reach CDU B. Refer to the chapter pertaining to your particular cabinet
configuration in the SW800 Series Data Center Cabinet Installation and
User’s Guide to determine the correct cable length for each shelf.
19. Plug the gray cable of the appropriate length into the second dc power supply
in each shelf and route the cable to CDU B. (The second dc power supply is
the right one for horizontal shelves, and the lower one for vertical shelves.)
Route each added cable to CDU B along the same path as the shelf ’s existing
black ac power cable. Attach the added cable to the cabinet rails using the
existing cable clamps.
20. Connect the gray power cable(s) to the connector(s) on the rear panel of CDU
B, starting at the top-most connector and working down.
21. If the cabinet’s host computer interface cable(s) was disconnected in step 7,
reconnect the cable(s).
22. Replace the cabinet side panels and reposition the cabinet next to the
adjacent ones as appropriate.
23. Reconnect the primary power cable from CDU A to its source.
24. Connect the primary power cable from CDU B to the auxiliary power source.
25. Switch the circuit breakers on both CDUs to the (ON) position.
26. Close and secure the cabinet doors.
27. Restart all disk and tape drives and check them for proper function.