Nortel Passport 15000, Установка и обслуживание оборудования, Страница: 829 / 874

Chapter 17 Hardware procedures 829
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
When a fiber FP has 16 ports, the label must reside on the cable outside
the hood and in the cable management channel across the front of the
shelf. Adding labels under the hood would prevent the hood from being
closed or would pinch a fiber cable, causing a loss of traffic. Stagger the
labels of each FP along the channel so that they are not bunched into a
bulge that prevents the channel cover from being closed.
2 From the faceplate, route the cable down through the cable guides and
into the cable management channel. Route a DS3 or E3 coax cable to the
right side of the frame and a fiber cable to the left side of the frame. Avoid
crossing coax and fiber cables.
The coupler of a Y-splitter cable cannot reside across the front of the shelf
either inside or outside the cable management channel.
3 From the cable management channel, route the cable over the bend relief
organizers at either end of the cable management channel. The part
numbers of the relief organizers are P0902861 for the left end (facing the
front of the frame) and P0902862 for the right end.
4 Route the cable up or down the side of the frame towards the next leg of
the cable path. Route the cable to the closest cable management bracket.
When the optional extended cable management brackets are present on
one or both sides of the frame, route the cable to the closest cable
management bracket, then to the rear (lowest) arm, innermost finger. All
cables from the same FP will eventually be fastened to the same finger.
For details on the strategies of cable management, you must do “Bundling
FP cables” (page 251).
The coupler of a Y-splitter cable should not reside inside a cable
management bracket and must not be used with an extended cable
management bracket. The couplers should reside between brackets
provided their size does not risk traffic loss through cable congestion.
Depending on the size of the couplers, you may have stagger where the
couplers reside along the cable path.
5 Route the cable to the next higher or lower brackets, same fingers, in
whichever direction the cables are being routed for an overhead or under-
floor cable path.
6 Route the cable and dress it loosely up to the next connection.
7 Repeat step 1 to step 6 for each other cable of the FP, moving from the
bottom right of the faceplate upwards, then down to the bottom left, as
required by the position and number of ports on the FP. The pattern is
intended to facilitate efficient and organized clustering of cables inside the
cable management channel.