Task 2: Connect The Grounding Cables; Task 3: Connect The Power Cables - Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - E120 AND E320 HARDWARE GUIDE REV 9-29-2010 Hardware Manual

E120 and E320 11.3.x Hardware Guide

Task 2: Connect the Grounding Cables

Task 3: Connect the Power Cables

52
The router has two grounding studs located in the rear of the chassis, near the power
inputs. Each stud provides grounding for a single power unit.
To ground each power unit:
Locate the grounding studs on the router (Figure 27 on page 51).
1.
Remove the nuts and locking washers from the grounding studs.
2.
NOTE: We recommend a minimum of 6-AWG ground wire with a ring-style
terminal.
Place the grounding cable lead on one of the grounding studs and tighten the nuts to
3.
secure the connection.
Connect the other end of the ground cable to the appropriate ground termination
4.
lead.
Repeat Steps 3–4 for the remaining grounding stud.
5.
NOTE: When grounding the router, leave a service loop in the grounding
cable to ensure that the grounding cable is the last cable to disconnect
from the shelf if strain is placed on the electrical cables.
To connect power cables to the router, follow these steps. See Figure 27 on page 51 as
needed.
NOTE: Juniper Networks has qualified an AC power supply unit for use with
the router. Contact your account representative for more information.
WARNING: Before you begin this procedure, be sure the power source is
turned off, the router is turned off, and proper grounding wires are attached.
Be sure you have completed "Task 1: Turn Off All Router Power" on page 51 and "Task
1.
2: Connect the Grounding Cables" on page 52.
If applicable, loosen the screws from the clear power input module cover and remove
2.
it.
WARNING: The wiring color code of the power cables depends on the
color coding of the DC power source installed at your site. Color code
Copyright © 2010, Juniper Networks, Inc.