Figure 123: Installing A Xenpak Module - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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238
loop in the cable management system. Placing fasteners on the loop helps to maintain
its shape.
CAUTION: Do not let fiber-optic cable hang free from the connector. Do
not allow fastened loops of cable to dangle, which stresses the cable at
the fastening point.
CAUTION: Avoid bending fiber-optic cable beyond its minimum bend
radius. An arc smaller than a few inches in diameter can damage the cable
and cause problems that are difficult to diagnose.
Verify that the status LEDs on the PIC faceplate indicate that the XENPAK module is
8.
functioning correctly. For more information about the PIC LEDs, see the T640 Core
Router PIC Guide. You can also verify PIC functioning by issuing the
command.
pic-status

Figure 123: Installing a XENPAK Module

T640 Preventing Electrostatic Discharge Damage on page 306
T640 Physical Interface Card (PIC) Description
T640 Packet Forwarding Engine Architecture on page 9
Maintaining T640 PICs and PIC Cables on page 156
show chassis fpc
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