Replacing A T1600 Scg; Removing A T1600 Scg - Juniper T1600 Hardware Manual

T1600 Core Router Hardware Guide
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Documentation

Replacing a T1600 SCG

Removing a T1600 SCG

228
Figure 129: Installing a PC Card
T1600 Chassis Description on page 14
T1600 Physical Specifications on page 345
T1600 Preventing Electrostatic Discharge Damage on page 312
Removing a T1600 SCG on page 228
Installing the T1600 SCG on page 229
The router can have one or two SCGs installed. The SCGs are located in the upper rear
of the chassis, above the control boards and Routing Engines. Each SCG weighs
approximately 1.9 lb (0.9 kg).
A nonredundant SCG is hot-pluggable. For redundant SCGs, the master SCG is
hot-pluggable. The backup SCG is hot-removable and hot-insertable if the master SCG
is functioning. Removing the backup SCG does not affect the functioning of the router.
Taking the master SCG offline might result in a brief loss of SONET clock lock while the
backup SCG becomes the master.
To remove an SCG (see Figure 130 on page 229):
Place an electrostatic bag or antistatic mat on a flat, stable surface.
1.
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. For more information about ESD,
see "T1600 Preventing Electrostatic Discharge Damage" on page 312.
Press the online/offline button on the SCG faceplate and hold it down until the LED
3.
goes out (about 5 seconds).
Copyright © 2010, Juniper Networks, Inc.