Cable chaining technology (c2t) ports – IBM xSeries 330 User Manual
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Hardware Maintenance Manual: xSeries 330
The following table shows the pin-number assignments for the USB-port connectors
on the rear of the server.
Cable Chaining Technology (C2T) ports
There are two C2T ports on the rear of the server. (They are labeled IN and OUT.)
These ports, in conjunction with the C2T Chaining and the C2T breakout cables, are
used to connect in a chain a maximum of 42 servers, allowing them to share a single
video monitor, mouse, and keyboard.
Note:
For best results, the highest video resolution that should be used with the C2T
chain is 1024 x 768.
Connect the C2T breakout cable to the C2T OUT port of server 1. Server 1 is usually
the server at the bottom of the rack. Connect the white connector of a C2T chaining
cable to the C2T IN port of server 1. Connect the black connector of the C2T chaining
cable to the C2T OUT port of the server above it. Refer to the following illustration
for additional information. Repeat steps B and C for the other servers until all are
connected together.
Note:
The C2T breakout cables are available in the C2T cable option kit.
Table 11. USB-port connector pin-number assignments.
Pin
Signal
1
VCC
2
-Data
3
+Data
4
Ground
In
In
Out
Out
Out
Out
In
In
Mouse
Keyboard
Video
4
3
2
1