Nortel Passport 15000, Hardware Installation And Maintenance, Page: 799 / 874

Chapter 17 Hardware procedures 799
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
Replacing a Shasta 5000 interface cable
Replace a Shasta 5000 interface cable to restore interworking with the
Passport 15000 that is below it in the same NEBS 2000 frame.
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
• The interface cable that connects a Shasta 5000 to a Passport 15000
occurs between OC-3 cards with SC connectors at each end.
Procedure steps
1 Locate an end point of the cable path at either the Shasta 5000 or the
Passport 15000 or 20000.
2 By tracing the cable to the other end point, measure the actual length of
the cable.
If the fiber cable passes through a fiber management unit such as an
NTHW50, you may be able to use a shorter replacement cable.
3 Get or make a fiber cable the same length with the same type of
connectors, that is, an SC on each end.
If an inline attenuator is present, keep it as part of the connection.
4 Without disconnecting the original cable, route the replacement cable to
both end points and loosely tie-wrap it in place.
5 Duplicate the cable labels of the original cable onto the replacement.
6 At each end of the cable, unplug the cable to be replaced and plug in the
replacement.
7 Manage any cable slack, as required.
8 You may wish to remove the old cable. If removal means tugging on or
potentially crimping other in-service cables, leave it where is and cut off
the connectors.
9 Tighten the cable with tie-wraps along the path between the Shasta 5000
and the Passport 15000 or 20000.
10 When the interface cable is connected, the software of the Shasta 5000
re-establishes awareness of the links with the Passport 15000 or 20000.
Coordinate with the software operator of the Shasta 5000 to ensure that
there is connectivity.