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Before cabling the C2T chain, review the following information:
v You can connect a maximum of 42 servers in a C2T chain.
v When connecting servers that are more than 3 U apart or on different racks, you
v C2T interconnect cables are hot-swappable.
v Servers are numbered by their positions in the chain (1 through n). If one server
v C2T numbering is independent of other server references. For example,
v C2T chaining supports a maximum video mode of 1024 x 768.
Complete the following steps to cable a C2T chain:
1. Turn off the servers.
2. Obtain a sufficient number of C2T interconnect cables. The server comes with
3. Connect a C2T interconnect cable from the C2T (IN) connector on the first
30
IBM xSeries 335 Type 8676: Option Installation Guide
must use a 2-m (6.5-ft) C2T interconnect cable, which comes in the C2T cable
option kit. You can use only one 2-m (6.5-ft) cable in a chain.
is removed from the chain, the remaining servers are renumbered. For example,
if the 12th server is removed from a chain of 15 servers, servers 13 through 15
are renumbered to 12 through 14.
changing the position of a server in the C2T chain does not affect its IP address.
one C2T interconnect cable that can span approximately 3 U. A 2-m (6.5-ft) C2T
interconnect cable and a C2T breakout cable come in the C2T cable option kit.
The following illustration shows a C2T chain of four servers.
Attention:
Do not allow the pins of the C2T cable connectors to touch the
server chassis.
server in the chain (server 1 in the illustration, typically the bottom server in the
rack) to the C2T (OUT) connector on the second server in the chain (server 2 in
the illustration). The connectors on the ends of the cable are different and have
different colors (black for OUT and white for IN) to prevent you from connecting
them to the wrong connectors on the servers. Repeat this step until all the
servers in the chain are connected. You can connect up to 42 servers in this
manner.
IN
OUT
OUT
IN
IN
OUT
IN
OUT
Video
Mouse
Keyboard
4
3
2
1
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