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TX Matrix Plus Router Hardware Guide
378
Removing an Input Power Tray
To remove an input power tray:
Make sure that the voltage across the DC power source cable leads is 0 V and that
1.
there is no chance that the cables might become active during installation.
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.
Switch the circuit breakers on the power supply faceplate to the
3.
Loosen the captive screws that secure the input power tray to the power supply.
4.
Grasp the metal handle of the input power tray and pull it down toward you. The
5.
circuit breakers are switched off as you pull the handle down.
Remove the input power tray from the power supply.
6.
Figure 133: Removing an Input Power Tray
Disconnecting the DC Power Cables from an Input Power Tray
To disconnect the DC power cables from an input power tray:
Use a Philips screwdriver to loosen the screws on the metal input power tray cover.
1.
Remove the metal input power tray cover.
Remove the cable restraint. Use a Phillips screwdriver.
2.
Remove the positive (+) DC source power cable lugs to the
3.
on the upper row. Use a 7/16-in. (11 mm) nut driver to remove first the nuts, then the
washers (see Figure 134 on page 379).
Loosen captive screws.
Input power tray
Copyright © 2010, Juniper Networks, Inc.
position (
).
OFF
O
(return) terminals
RTN
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Troubleshooting
