12
Sun Datacenter InfiniBand Switch 648 Installation Guide • May 2010
See
“Floor and Underfloor Delivery of InfiniBand Cables” on page 14
and
“Overhead Delivery of InfiniBand Cables” on page 14
6. Label the ends of cables to identify their routes. Rest the cable connectors on a
stable surface when they are not connected.
Related Information
■
“Power Cord Requirements” on page 8
■
“Management Cable Requirements” on page 9
InfiniBand Cable Types
The following table lists the cables available for the switch, their length, and data
rate.
Related Information
■
“InfiniBand Cable Path Lengths” on page 12
■
“Connecting InfiniBand Cables” on page 108
■
“CXP Connector and Pins” on page 5
InfiniBand Cable Path Lengths
Cable paths should be as short as possible. When the length of a cable path has been
calculated, select the shortest cable to satisfy the length requirement. When
specifying a cable, consider the following:
■
Bends in the cable path increases the required length of the cable. Rarely does a
cable travel in a straight line from connector to connector. Bends in the cable path
are necessary, and each bend increases the total length.
Cable Type
Lengths
Data Rate
Splitter, optical core, CXP - QSFP x3
10 m, 20 m
QDR
Splitter, copper core, CXP - QSFP x3
1 m, 2 m, 3 m, 5 m
QDR
Pass-through, optical core, CXP - CXP
10 m, 20 m
QDR
Pass-through, copper core, CXP - CXP
0.4 m, 1 m, 2 m, 3 m, 5 m
QDR
