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Install and Configure an 8-Port Asynchronous Adapter
To install and configure an 8-port asynchronous adapter, refer to the IBM Hardware Management Console
for pSeries Installation and Operations Guide.
To connect the cables from the processor subsystem to the 8-port asynchronous adapter, use the following
procedure.
Connect the Processor Subsystem to the 8-Port Asynchronous Adapter
At least one 8-port asynchronous adapter is required. Up to two 8-port asynchronous adapters can be
installed. The D-shell connector on the rear of the adapter attaches to the 8-port expansion cable. The
cable is approximately 0.9 m (3 ft.), and on the other end, has a slim box (21.6 cm (8-1/2 in.) x 7.6 cm (3
in.) x 3.8 cm (1-1/2 in.)) with 8 separate serial port connectors on it. The cable is labeled ISA 8-Port Cable.
Serial cables can be connected from any of the ports on the 8-port expansion cable to the HMC ports on
the managed systems.
If you are using a second, redundant HMC, connect cables from all of the processor subsystem's HMC1
ports to the 8-port cable on one HMC, and connect all the processor subsystem's HMC2 ports to the
8-port cable on the other HMC.
HMC to Processor Subsystem Cabling
The following illustration shows cabling for both the 8-port asynchronous adapter and 128-port
asynchronous adapter to the HMC and the processor subsystems. The top portion of the illustration shows
the 8-port adapter and the RS422 cable to support up to four system frames. For smaller system
configurations, the 8-port asynchronous adapter can be used for RS232 connections.
The bottom portion of the illustration shows the 128-port adapter and the RS232 cables to support up to
64 processor subsystems.
Port 1
Port 2
24
Eserver pSeries 655 Installation Guide
HMC
8-Port
Adapter
128-Port
Adapter
Connector matching
interposers
RS232 RAN (Remote Asynchronous Node)
- RS232 ports to support up to 64 Processor Subsystems
- Processor Subsystems have 9-pin D-shell female connectors
RS422 port pairs support up
to four frames
BPCs have 9-pin micro D-shell connectors
T
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