Technical data

Cabling

5-23

Dual 9-, 12-, and 20-Slot Chassis Cabling

Control Cables (12- and 20-Slot Systems without Alarm Board)

Use the following instructions to install the control cables.

1. Plug the end of an EIA-232-D cable into the host port of the

terminal to be used as the system console.

2. Plug the other end of the cable into the transition module

connector marked

CONSOLE or SERIAL PORT 1 on the back of

the system.

3. If an SCSI peripheral expansion enclosure is present, connect

it to the system as follows:

– Attach one end of an SCSI cable to one of the 68-pin

connectors labeled SCSI on the back of the peripheral

expansion enclosure (Figure 5-7).

– Select a transition module connector labeled

SCSI or SCSI

OUT on the back of the system. Remove the terminator

block and plug the other end of the SCSI cable into the

connector. Move the terminator block to the unused

connector on the peripheral expansion enclosure.

– If you have the Environmental Monitor option, install an

RJ45 cable between the connector on the back of the

system (identified with a “no telephone” graphic) and

either of the RJ45 connectors on the back of the peripheral

expansion enclosure.

4. Cable all other associated equipment (terminals, printers,

SCSI expansion peripherals, and so on) to the system as

described in the installation guides for those peripherals.