Replacing A Dc Power Supply Cable; Removing A Dc Power Supply Cable; Figure 136: Connecting Power Cables To The Power Supply - Juniper TX MATRIX PLUS Hardware Manual

TX Matrix Plus Router Hardware Guide
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Replacing a DC Power Supply Cable

382
Replace the input power tray cover.
14.
Verify that the power cabling is correct, that the power cables are not touching or
15.
blocking access to other hardware components, and that they do not drape where
people could trip on them.

Figure 136: Connecting Power Cables to the Power Supply

Power Supply LEDs on the TX Matrix Plus Craft Interface on page 35
TX Matrix Plus Seven-Input 420-A Power Supplies Overview on page 41
TX Matrix Plus Seven-Input 420-A Power Supply LEDs on page 43
Troubleshooting the TX Matrix Plus Power System on page 290
TX Matrix Plus Preventing Electrostatic Discharge Damage on page 392.
1. Removing a DC Power Supply Cable on page 382
Installing a DC Power Supply Cable on page 383
2.

Removing a DC Power Supply Cable

Turn off the customer site circuit breaker that provides voltage to the DC power supply.
1.
Make sure that the voltage across the DC power source cable leads is 0 V and that
there is no chance that the cables might become active during the removal process.
Follow your site's procedures.
Remove the power cable from external DC power source.
2.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
3.
the strap to one of the ESD points on the chassis. For more information about ESD,
see "TX Matrix Plus Preventing Electrostatic Discharge Damage" on page 392.
Switch the circuit breakers on the power supply faceplate to the off position (
4.
Remove the input power tray from the power supply.
5.
Use a Philips screwdriver to loosen the screws on the metal input power tray cover.
6.
Remove the metal input power tray cover.
Power lug separator
Input power tray
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