Technical data

Cabling
5-27
5
Control Cables (Dual 9-Slot System 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 for System A.
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 on the System A side.
3. Cable all other associated equipment (terminals, printers,
SCSI expansion peripherals, and so on) to System A as
described in the installation guides for those peripherals.
4. Repeat steps 1 through 3 for System B.
5. If an SCSI device storage module is present, connect it to
System A or B as follows:
– Attach one end of an SCSI cable to one of the 68-pin
connectors labeled
SCSI on the back of the SCSI storage
module.
– 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 SCSI storage module.
– 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 SCSI
storage module.