HP 376227-B21 - ProLiant InfiniBand 4x Fabric Copper Switch Руководство по установке - Страница 16
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HP-UX Integrity Installation Overview & Planning
Attach Cable Guides & Cables
Cable Routing and Bend Limits
Pre-form the cables to the bent condition prior to installation if possible. This reduces any undue strain at the
plug/receptacle connection at the time of installation.
Handling or installing an InfiniBand technology cable in a manner that results in a tight bend radius or
excessive twisting can result in immediate or latent failure of the cable. The following table and sketch show
the minimum bend radius to prevent problems with the cables.
Figure 1-15
Cable Bend Radius
R
Bend radius at the connector
4.6" (11.68 cm) or 5.2" (13.21 cm)
depending on cable length (diameter)
Table 1-1
Cable Installation Minimum Bend Radius
HP Cable Product
376232-B21 1m Cable
376232-B23 5m Cable
AB353A 7m Cable
AB347A 10m Cable
Attach Cables
The connectors include a latching mechanism. The latching and unlatching mechanism varies by
manufacturer, and prior to installing cables, familiarize yourself with how to engage and disengage the latch.
If the cable plug is not properly oriented to fit onto the port receptacle (as you attempt to insert the cable in
the port), do not twist the plug to achieve the correct orientation. Instead, reach back a few feet on the cable,
and twist the bulk cable to allow the plug to rotate to the proper orientation. Doing this prevents the
rotational forces from acting right at the plug terminations.
16
Cable Description
26AWG Cable OD: 0.345"
(8.76 mm)
26AWG Cable OD: 0.345"
(8.76 mm)
24AWG Cable OD: 0.400"
(10.16 mm)
24AWG Cable OD: 0.400"
(10.16 mm)
R
Bend radius away from a connector
2.3" (5.84 cm) or 2.7" (6.86 cm)
depending on cable length (diameter)
Minimum
Minimum Bend Radius in
Bend Radius
the middle of the cable,
at Connector
with both ends free
4.6" (11.68
cm)
4.6" (11.68
cm)
5.2" (13.21
cm)
5.2" (13.21
cm)
2.3" (5.84 cm)
2.3" (5.84 cm)
2.7" (6.86 cm)
2.7" (6.86 cm)
Chapter 1