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ERX 11.3.x Hardware Guide
Task 3: Connect the Power Cables
56
NOTE: We recommend a minimum of 10-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 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.
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.
Be sure you have completed Task 1 and Task 2 in the previous sections.
1.
If applicable, loosen the screws (using a No. 2 Phillips screwdriver, if necessary) from
2.
the clear power input module cover and remove it.
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.
Remove the nuts and locking washers from the posts for the power input (A or B)
3.
using a small insulated adjustable wrench.
Place one negative (neutral) cable lead on the post labeled –48 VDC.
4.
Copyright © 2010, Juniper Networks, Inc.
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