Nortel Passport 15000, Hardware Installation And Maintenance, Page: 357 / 874

Chapter 17 Hardware procedures 357
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
Disconnecting other cables from a BIP
Disconnect other cables from a BIP to enable its removal for an upgrade or a
replacement due to failure.
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
• You need temporary labels for cables.
Procedure steps
1 One at a time, label each black-and-white power output cable to a PIM or
a cooling unit with its relative position at the BIP, and disconnect it by
pinching the tabs on the sides of the connector together and pulling. For
label identifiers, refer to the figure “Cable connections at the rear of a BIP”
(page 358).
2 One at a time, label each red power and alarm cable with its relative
position at the BIP, and disconnect it by unfastening the small slotted
screws of the D-sub connector and pulling.
3 One at a time, label each external alarm cable (all of the remaining
cables) with its relative position at the BIP, and disconnect them as
follows.
• for a D-sub connector, unfasten the 2 small slotted screws on either
side of the connector
• for a Berg connector, unplug it while lifting the tab on the side
• for a MATE-N-LOK connector, unplug it while lifting the tabs on the
either end