Replacing A T640 Xenpak Module; Removing A T640 Xenpak Module - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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Replacing a T640 XENPAK Module

Removing a T640 XENPAK Module

434
NOTE: When you bring an active SIB offline, the spare SIB becomes active
and transitions to the
Replace the SIB with a standard SIB version B. Use the replacement procedures
3.
described in "Removing a T640 Standard SIB or Standard SIB Version B" on page 425
and "Installing a T640 Standard SIB or Standard SIB Version B" on page 426
NOTE: Ensure that the ejector handle tabs are properly mated inside their
corresponding chassis slots before you tighten the captive screws on the
ejector handles. You might have to close and open the handles a few times
before the tabs catch the slots.
T640 Chassis Description on page 15
T640 Switch Interface Boards (SIBs) Description on page 111
Maintaining the T640 SIBs on page 459
XENPAK modules are optical transceivers that can be removed from a PIC.
XENPAK modules are hot-insertable and hot-removable. Removing a XENPAK module
does not interrupt PIC functioning, but the removed module no longer receives or transmits
data.
Removing a T640 XENPAK Module on page 434
1.
Installing a T640 XENPAK Module on page 436
2.
To remove a XENPAK module (see
Place an electrostatic bag or antistatic mat on a flat, stable surface to receive the
1.
XENPAK module. Have ready a rubber safety cap for the XENPAK transceiver and the
cable.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to one of the ESD points on the chassis.
Label the cable connected to the XENPAK module so that you can later reconnect it
3.
to the correct module.
state.
Online
Figure 230 on page 436):
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