5190/5194 Modular Tape Subsystem Manual

Installing the Modular Tape Subsystem

5190/5194 Modular Tape Subsystem Manual—426878-002

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Installing the BEB (Fiber-Optic Cables Only)

Figure 3-13 shows a back-end board (BEB) enclosure. You must install a BEB

enclosure on the tape drive CRU if you want to attach the drive to a 3216 controller or

a 6761 fiber-optic plug-in card (F-PIC) on a 6760 adapter. (SCSI-attached drives do

not require a BEB.)

The BEB translates fiber-optic signals from the 3216 controller or 6761 F-PIC into

SCSI commands and information for the tape drive. When connecting to a 3216

controller, one BEB can serve two daisy-chained tape drives; the BEB attaches to the

port on the rear of the drive CRU that is not terminated.

To install the BEB, use the following procedure:

1. Make sure power is removed from the tape drive CRU.

2. Remove the filler plug, if necessary, from the fiber-optic cable socket on top of the

BEB enclosure.

Figure 3-13. Back-End Board (BEB) Enclosure

Caution. The BEB contains static-sensitive components. Be sure to touch a grounded object

before touching the BEB. Compaq recommends that you use an electrostatic discharge (ESD)

protection kit to protect electronic and static-sensitive components such as the BEB from

electrostatic discharge. For ESD guidelines, see the Himalaya S-Series Hardware Support

Guide.

Fiber-Optic Cable Socket

With Key

Captive

Wing Nut

Power LED

Carrier Signal LED

VST006.vsd