Replacing An M120 Xenpak Module; Removing An M120 Xenpak Module - Juniper Networks Hardware Manual

M120 Multiservice Edge Router Hardware Guide
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Replacing an M120 XENPAK Module

170
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Remove the rubber safety cap from the transceiver and the end of the cable. Insert
6.
the cable into the transceiver.
Verify that the status LEDs on the PIC faceplate indicate that the SFP or XFP is
7.
functioning correctly. For more information about the PIC LEDs, see the PIC description
for the PIC in the M120 PIC Guide. You can also verify PIC functioning by issuing the
show chassis fpc pic-status
Cables" on page 112.
M120 Router Chassis Description on page 6
Overview of Troubleshooting Resources for the M120 Router on page 117
XENPAK modules are optical transceivers that can be removed from a PIC (for more
information, see "M120 PICs Description" on page 15).
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. To replace a XENPAK module, perform the following procedures:
Removing an M120 XENPAK Module on page 170
Installing an M120 XENPAK Module on page 171

Removing an M120 XENPAK Module

To remove a XENPAK module (see Figure 85 on page 171):
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.
Disconnect the cable from the XENPAK module. Immediately cover the transceiver
4.
and the end of the cable with a rubber safety cap.
WARNING: Do not look directly into a fiber-optic transceiver or into the
ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cable
connected to a transceiver emit laser light that can damage your eyes.
CAUTION: Do not leave a fiber-optic transceiver uncovered except when
inserting or removing cable. The safety cap keeps the port clean and
prevents accidental exposure to laser light.
command described in "Maintaining M120 PICs and PIC
Copyright © 2010, Juniper Networks, Inc.