Juniper SRX5400, Руководство по оборудованию

Страница: 206 / 394

Grounding the SRX5400 Services Gateway
WARNING: To meet safety and electromagnetic interference (EMI)
requirements and to ensure proper operation, you must properly ground the
services gateway chassis before connecting power.
You ground the device by connecting a grounding cable to earth ground and then attaching
it to the chassis grounding points using UNC 1/4-20 two screws. You must provide the
grounding cable (the cable lug is supplied with the device).
1.
Verify that a licensed electrician has attached the cable lug provided with the device
to the grounding cable.
2.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect
the strap to an approved site ESD grounding point. See the instructions for your site.
3.
Ensure that all grounding surfaces are clean and brought to a bright finish before
grounding connections are made.
4.
Connect the grounding cable to a proper earth ground.
5.
Detach the ESD grounding strap from the site ESD grounding point, and connect the
strap to one of the ESD points on the chassis.
6.
Place the grounding cable lug over the grounding point. The grounding point is sized
for UNC 1/4-20 screws and 1/4 in. split washers, which are provided in the accessory
box.
7.
Secure the grounding cable lug to the grounding point, first with the washers, and then
with the screws as shown in
Figure 87 on page 180 .
Figure 87: Connecting the Grounding Cable
PEM
3
PEM
2
PEM
1
PEM
0
AIR
FILTER
FAN
TRAY
g030326 ESD
8.
Dress the grounding cable and verify that it does not touch or block access to device
components, and that it does not drape where people could trip on it.
Copyright © 2017, Juniper Networks, Inc. 180
SRX5400 Services Gateway Hardware Guide