Nortel Passport 15000, Установка и обслуживание оборудования, Страница: 273 / 874

Chapter 17 Hardware procedures 273
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
Checking power output connections from the BIP
Check the power output cable connections from the BIP to the shelf assembly
hardware to verify firm connectivity for power distribution before powering
up the BIP or after replacing a power interface module (PIM) cable.
Transporting a Passport 15000 or 20000 or installing hardware onto it can
loosen a power connection between the breaker interface panel (BIP) and the
other parts of the switch hardware. Before powering up the BIP, check each
power output connection from the BIP.
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
Procedure steps
1 Facing the rear of the BIP, locate the left-most cable connection. Refer to
the figure “Power cable paths between the BIP and two shelves”
(page 274).
2 Using your fingers, firmly push the connector of the cable in towards the
BIP. Decide if the connection is fully seated.
If fully seated, proceed.
If not, remove the connector and install it again until it is fully seated.
D-sub connectors usually have small slotted screws. If re-seating cannot
be done, record why and proceed.
3 Repeat step 2 for each cable connection across the rear of the BIP up to
but not including the power input cables. The black and white cables are
power output cables, while the red are alarm cables. Check each
connector.
4 Locate the next lower batch of connectors down the left rear of the switch.
The black and white connectors have locking tabs. Ensure that the tabs
are engaged.
5 Methodically check the connector of each rear cable until all have been
done, or record any that cannot be fully seated.
6 Return to the connector or connectors that could not be fully seated, and
fix the problem. Otherwise, do not power up the BIP and contact your next
higher level of technical support.