Task 3: Connect The Power Cables; Erx7Xx Models, Erx14Xx Models, Erx310 Router (Dc Model) - Juniper ERX - RELEASE 11.1.X HARDWARE GUIDE 03-23-2010 Hardware Manual

ERX 11.1.x Hardware Guide
1.
2.
NOTE: We recommend a minimum of 10-AWG ground wire with a ring style terminal.
3.
4.
5.
NOTE: When grounding an ERX 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.

Task 3: Connect the Power Cables

To connect power cables to the router, follow these steps. Refer to Figure 26 on
page 55, Figure 27 on page 57, and Figure 28 on page 58 as needed.

ERX7xx Models, ERX14xx Models, ERX310 Router (DC Model)

WARNING: Before you begin this procedure, ensure that all power switches are in
the OFF position.
1.
2.
WARNING: Be sure the power source is turned off, the router is turned off, and proper
grounding wires are attached before continuing with this procedure.
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 standards for DC wiring do
not exist. To ensure that the correct polarity is connected to the router power units,
confirm the connection of the power cables to the + (positive) and – (negative) leads
at the power source.
56
Cabling the Router for Power
Locate the grounding studs on the router (Figure 26 on page 55 and Figure 27
on page 57).
Remove the nuts and locking washers from the grounding studs.
Place the grounding cable lead on one of the grounding studs and tighten the
nuts to secure the connection.
Connect the other end of the ground cable to the appropriate ground termination
lead.
Repeat Steps 3–4 for the remaining grounding stud.
Be sure you have completed Task 1 and Task 2 in the previous sections.
If applicable, loosen the screws (using a No. 2 Phillips screwdriver, if necessary)
from the clear power input module cover and remove it.