Figure 21: Connecting Dc Power To The Router - Juniper ACX2000 Hardware Manual

Copyright © 2015, Juniper Networks, Inc.
Chapter 9: Grounding and Providing Power to the ACX2000 or ACX2100 Router
a. Secure the positive DC source power cable lug to the return (
b. Secure the negative DC source power cable lug to the input (
CAUTION: Ensure that each power cable lug seats flush against the surface
of the terminal block as you are tightening the screws. Ensure that each
screw is properly threaded into the terminal. Applying installation torque
to the screw when improperly threaded may result in damage to the
terminal.
CAUTION: The maximum torque rating of the terminal screws on the DC
power supply is 9 lb-in. (1.02 Nm). The terminal screws may be damaged
if excessive torque is applied. Use only a torque-controlled driver to tighten
screws on the DC power supply terminals. Use an appropriately sized
driver, with a maximum torque capacity of 9 lb-in. or less. Ensure that the
driver is undamaged and properly calibrated and that you have been
trained in its use. You may wish to use a driver that is designed to prevent
overtorque when the preset torque level is achieved.
Replace the clear plastic cover over the terminals on the faceplate.
6.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
7.
the strap to an approved site ESD grounding point. See the instructions for your site.
Connect each DC power cable to the appropriate external DC power source.
8.
NOTE: For information about connecting to external DC power sources,
see the instructions for your site.
Switch on the external circuit breakers to provide voltage to the DC power source
9.
cable leads. Observe the system LED on front of the router. If the DC power cable is
correctly installed and functioning normally, the system LED lights green steadily. If
the system LED indicates that the power supply is not functioning normally, repeat
the installation and cabling procedures.

Figure 21: Connecting DC Power to the Router

) terminal.
+
) terminal.
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