Testing The Tx Matrix Fiber-Optic Array Cables; Figure 74: Fiber-Optic Array Loopback Connector And Loopback Adapter - Juniper TX MATRIX Hardware Manual

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Testing the TX Matrix Fiber-Optic Array Cables

138
NOTE: The optics in a fiber-optic array adapter are spring loaded, so you
must continue to apply force to a fiber-optic array cable connector or
loopback connector while securing it to a TX-SIB or T640-SIB adapter.
Partially tighten the thumbscrew and captive screw on the fiber-optic array cable
6.
connector. (Use the supplied small slotted screwdriver to tighten the captive screw.)
Alternate between the thumbscrew and captive screw until the cable connector is
secured to the adapter.
Repeat Step 4 through Step 6 for the four remaining fiber-optic array cables that
7.
connect to TX-SIB-1 through
Switching Plane Connections Between the TX Matrix Router and T640 Routers on
page 14
Tools Required for Testing and Connecting TX Matrix Fiber-Optic Components on
page 134
TX Matrix Preventing Electrostatic Discharge Damage on page 298
To test the fiber-optic array cables, you use the fiber-optic array loopback adapter that
is shipped with the TX Matrix router (see Figure 74 on page 138).

Figure 74: Fiber-Optic Array Loopback Connector and Loopback Adapter

To test the five fiber-optic array cables that connect to a single T640 router:
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to one of the ESD points on the chassis.
Remove the dust cover from the loopback adapter by loosening the two hex screws
2.
with a 2.5-mm hex Allen wrench and pulling off the cover. Temporarily store the dust
cover in a dust-free resealable plastic bag.
TX-SIB-4 .
Copyright © 2010, Juniper Networks, Inc.