Nortel Passport 15000, Hardware Installation And Maintenance, Page: 258 / 874

258 Chapter 17 Hardware procedures
241-1501-240 5.2S2
Checking the backplane pins
Check the backplane pins after unpacking a Passport 15000 shelf assembly
and before any processor cards are installed to ensure there are no bent pins.
Prerequisites
• Do not check the pins of a Passport 20000 shelf assembly unless cards
have been accidently unlatched by impact, inadvertently removed, or at
least one slot was shipped empty.
Procedure steps
1 Look inside the shelf assembly at each row of pins at the rear. Refer to the
figure “An empty shelf assembly of a Passport 15000, front view”
(page 259). You may need a flashlight to see the patterns of pins. Do not
allow the flashlight to contact anything inside the shelf assembly.
CAUTION
Risk of equipment damage and service loss by bent
pins
While checking for bent backplane pins, especially if you
are wielding a flashlight or mirror inside the shelf
assembly, ensure that you do not contact any pins.
Contacting the pins with a sideways force can easily bend
them.