Connecting An Mx960 Dc Power Supply Cable - Juniper MX960 Hardware Manual

MX960 3D Universal Edge Router Hardware Guide

Connecting an MX960 DC Power Supply Cable

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WARNING: Before performing DC power procedures, ensure that power is
removed from the DC circuit. To ensure that all power is off, locate the circuit
breaker on the panel board that services the DC circuit, switch the circuit
breaker to the off position, and tape the switch handle of the circuit breaker
in the off position.
To connect a power cable for a DC power supply:
Locate a replacement power cable that meets the specifications defined in
1.
Specifications for the MX960 DC Power Supply" on page
Verify that a licensed electrician has attached a cable lug to the replacement power
2.
cable.
Verify that the
3. INPUT OK
Secure the power cable lug to the terminal studs, first with the split washer, then with
4.
the nut. Apply between 23 lb-in. (2.6 Nm) and 25 lb-in. (2.8 Nm) of torque to each
nut (see Figure 76 on page
torque-controlled driver or socket wrench.)
CAUTION: Ensure that each power cable lug seats flush against the surface
of the terminal block as you are tightening the nuts. Ensure that each nut
is properly threaded onto the terminal stud. The nut should be able to spin
freely with your fingers when it is first placed onto the terminal stud.
Applying installation torque to the nut when improperly threaded may
result in damage to the terminal stud.
CAUTION: The maximum torque rating of the terminal studs on the DC
power supply is 58 lb-in. (6.5 Nm). The terminal studs may be damaged
if excessive torque is applied. Use only a torque-controlled driver or socket
wrench to tighten nuts on the DC power supply terminal studs.
LED is off.
245). Do not overtighten the nut. (Use a 7/16-in. (11 mm)
"Electrical
169.
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