Juniper Networks T1600 User Manual download pdf (Page 22)

Figure 13: Three-Input 240-A Power Supply

Installing a Three-Input 240-A Power Supply

Each three-input 240-A power supply weighs approximately 25 lb (11.3 kg). To install

a three-input 240-A power supply, follow this procedure:

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 installation.

2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and

connect the strap to one of the ESD points on the chassis. See “Preventing

Electrostatic Discharge Damage” on page 47.

Switch the circuit breakers on the power supply faceplate to the OFF position (O).

4. Using both hands, slide the power supply into the chassis until you feel resistance

(see Figure 14 on page 23).

5. Twist the ejector handles at the upper corners of the power supply faceplate

clockwise until they stop.

6. Tighten the captive screws at the lower corners of the power supply faceplate

to secure the power supply in the chassis.

22 ■ Upgrading the DC Power Supplies

T1600 Routing Node Upgrade Guide

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Juniper Networks T1600 User Manual Page 22