Powering On A Dc-Powered T640 Router - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide

Powering On a DC-Powered T640 Router

162
To power on a DC-powered router:
Verify that the power supply is fully inserted in the chassis and that the captive screws
1.
on their faceplates are tightened.
Verify that the source power cables are connected to the appropriate terminal: the
2.
positive (+) source cable to the return terminal (labeled
source cable to the input terminal (labeled
Verify that an external management device is connected to one of the Routing Engine
3.
ports on the CIP ( AUXILIARY
connecting management devices, see
External Devices" on page
Turn on the power to the external management device.
4.
Switch on the customer site circuit breakers to provide voltage to the DC power source
5.
cables.
For a three-input 240-A DC power supply in
6.
six-input DC power supply, verify that the
faceplate are lit steadily, indicating that the inputs are receiving power.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
7.
the strap to one of the ESD points on the chassis.
Switch the circuit breakers on the two-input 160-A, three-input 240-A, or four-input
8.
240-A DC power supply faceplate to the on position (
AC power supplies or six-input DC power supplies to the on position.
NOTE: After a power supply is powered on, it can take up to 60 seconds
for status indicators—such as the LEDs on the power supply, the command
output displays, and messages on the LED display on the craft interface—to
indicate that the power supply is functioning normally. Ignore error
indicators that appear during the first 60 seconds.
For the two-input 160-A, three-input 240-A, or four-input 240-A power supplies, verify
9.
that the LEDs on the power supply faceplate are lit steadily. The
CB ON
blink momentarily, then light steadily to indicate that the circuit breakers are on.
Verify that the LED on the power supply faceplate is lit steadily, indicating that
DC OK
10.
the power supply is correctly installed and is functioning properly.
NOTE: If any of the output status LEDs do not light steadily, repeat the
installation and cabling procedures.
On the external management device connected to the Routing Engine, monitor the
11.
startup process to verify that the system has booted properly.
).
–48V
, CONSOLE , or ETHERNET
"Overview of Connecting the T640 Router to
135.
2–INPUT
INPUT PRESENT
Copyright © 2013, Juniper Networks, Inc.
RTN ) and the negative (–)
). For more information about
mode, four-input 240-A DC, or
LEDs on the power supply
), or the power switch on the
|
LEDs
CB ON