Installing A T4000 Scg; Figure 132: Removing An Scg - Juniper T4000 Hardware Manual

T4000 Router Hardware Guide

Installing a T4000 SCG

278

Figure 132: Removing an SCG

To install a replacement SCG (see
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.
Carefully align the sides of the SCG with the guides in the SCG slot.
2.
Grasp the SCG by its handle, and slide it straight into the chassis until it contacts the
3.
midplane.
Tighten the captive screws on the corners of the SCG faceplate.
4.
To bring the SCG online, press the online/offline button until the green
5.
To verify that the SCG is installed correctly and is functioning normally, check the
6.
LEDs on the SCG faceplate. The green
master, the blue MASTER
To check the status of the SCGs, use the following CLI command:
user@host> show chassis environment scg
SCG 0 status:
State
Temperature
Power
GROUND
1.8 V bias
3.3 V
3.3 V bias
5.0 V
5.0 V bias
5.6 V
8.0 V bias
Bus Revision
SCG 1 status:
State
Temperature
Power
GROUND
1.8 V bias
3.3 V
3.3 V bias
Figure 133 on page 279):
LED should light steadily. If the SCG is
OK
LED should also light steadily.
Online - Master clock
38 degrees C / 100 degrees F
0 mV
1797 mV
3312 mV
3274 mV
5047 mV
4989 mV
5758 mV
7560 mV
40
Online - Standby
38 degrees C / 100 degrees F
0 mV
1786 mV
3318 mV
3286 mV
Copyright © 2013, Juniper Networks, Inc.
OK LED lights.