IBM 8676 Option Installation Guide - Page 42

Do not allow the pins of the C2T cable connectors to touch the, server chassis.

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Page 42 highlights

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 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. v C2T interconnect cables are hot-swappable. v Servers are numbered by their positions in the chain (1 through n). If one server 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. v C2T numbering is independent of other server references. For example, changing the position of a server in the C2T chain does not affect its IP address. 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 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. 4 IN OUT 3 IN OUT 2 IN OUT 1 IN OUT Video Mouse Keyboard Attention: Do not allow the pins of the C2T cable connectors to touch the server chassis. 3. Connect a C2T interconnect cable from the C2T (IN) connector on the first 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. 30 IBM xSeries 335 Type 8676: Option Installation Guide

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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
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.
v
C2T interconnect cables are hot-swappable.
v
Servers are numbered by their positions in the chain (1 through
n
). If one server
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.
v
C2T numbering is independent of other server references. For example,
changing the position of a server in the C2T chain does not affect its IP address.
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
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.
IN
OUT
IN
OUT
IN
OUT
4
3
2
1
Video
Keyboard
Mouse
IN
OUT
Attention:
Do not allow the pins of the C2T cable connectors to touch the
server chassis.
3.
Connect a C2T interconnect cable from the C2T (IN) connector on the first
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.
30
IBM xSeries 335 Type 8676: Option Installation Guide