Juniper J2300 Getting Started Manual page 209

Firmly push the power supply into the chassis until it comes to a stop. Make
4.
sure that the power supply faceplate is flush with any adjacent power supply
faceplate.
Use a Phillips screwdriver to remove the clear plastic cover protecting the
5.
terminal block.
Within the terminal block, remove the two center screws next to the labels
6.
and .
–48 VDC RTN
Each screw contains a captive washer to secure a power cable lug to the
terminal block.
Using one of the removed screws, secure the positive (+) DC source power
7.
cable lug to the terminal. Tighten the screw until snug. Do not overtighten.
RTN
Apply between 8 lb-in. (0.9 Nm) and 9 lb-in. (1.02 Nm) of torque to the screw.
Using the other removed screw, secure the negative (–) DC source power cable
8.
lug to the terminal. Tighten the screw until snug. Do not overtighten.
–48 VDC
Apply between 8 lb-in. (0.9 Nm) and 9 lb-in. (1.02 Nm) of torque to the screw.
NOTE: Each power supply must be connected to a dedicated DC power feed. For
information about connecting to DC power sources, see "Connecting Power" on
page 102.
Dress the power cables appropriately.
9.
Replace the clear plastic cover over the terminal block.
10.
Verify that the power cord does not block access to router components or
11.
drape where people might trip on it.
Press and release the power button to power on the router. Verify that the
12.
LED lights steadily after you press the power button.
POWER
Replacing and Troubleshooting Hardware Components
Replacing Hardware Components
187