Connecting the asm bus – IBM eserver xSeries 330 User Manual

Page 30

IBM® xSeries 330: Installation Guide

Connecting the ASM bus

The servers in the Advanced System Management (ASM) bus are referenced by their
assigned addresses and not their position in the rack.

Complete the following steps to connect the ASM bus:

1. Turn off the servers.

2. Locate the RS-485 ports on the rear of the servers and several cables with RJ-14

connectors on both ends.

3. Starting at the top most server to be included in the ASM bus connect one end of

the cable into the RS-485 (B) port and the other end of the cable into the RS-485 (A)
port of the next server.

4. Continue connecting the servers together in this manner until you reach the

second to last server in the ASM bus.

5. Connect a cable from the RS-485 (B) port of the second to last server to the RS-485

(B) port of the last server. Refer to the following illustration to see how to connect
the ASM bus.

Note:

The illustrations in this document might differ slightly from your
hardware.

6. Turn on the servers.

RS-485(A)

RS-485(B)

Ethernet cable

with RJ-14 connectors