IBM eServer 130 xSeries User Reference Manual page 84

Complete the following steps to connect the ASM bus:
1. Locate the RS-485 connectors on the rear of the appliance servers and several
2. Starting at the top appliance server in the ASM bus, connect one end of the cable
3. Continue connecting the appliance servers together in this manner until you reach
4. Connect a cable from the RS-485 (B) connector of the second-to-last appliance
Figure 23. Viewing an ASM interconnect network
5. Continue with "Connecting appliance servers with a C2T chain".
Connecting appliance servers with a C2T chain
To share the same monitor, keyboard, and pointing device with several appliance
servers, you must connect the appliance servers together with Cable Chain
Technology (C2T) interconnect cables through the C2T (In) and C2T (Out)
connectors.
The C2T chaining cable uses physically different shells and different-colored
connector covers (a black cover for out and a white cover for in) to prevent the
accidental connection of two C2T (Out) connectors.
Before you begin, review the following:
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IBM xSeries 130: User's Reference
UTP cables with RJ-45 connectors.
into the RS-485 (B) connector and the other end of the cable into the RS-485 (A)
connector of the next appliance server.
the second-to-last appliance server in the ASM bus.
server to the RS-485 (B) connector of the last appliance server. Refer to the
following illustration to see how to connect the ASM bus.
Note: Be sure that the first and last connection of the ASM interconnect network
are in Port B of the appliance servers.
Ethernet cable
with RJ-45 connectors
RS-485(B)
RS-485(B)
RS-485(B)
RS-485(B)
RS-485(B)
You can connect a maximum of 42 appliance servers with the C2T chaining
cables.
RS-485(A)
RS-485(A)
RS-485(A)
RS-485(A)
RS-485(A)