Juniper ACX7348 Hardware Manual page 123

Install an ACX7348 DC Power Supply Module
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 install a DC PSM:
1. Ensure that the voltage across the DC power source cable leads is 0 V and that there is no chance
that the cable leads might become active during installation.
2. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other
end of the strap to the ESD point on the chassis.
3. Using both hands, slide the DC PSM straight into the slot on the front panel of the chassis until the
PSM is fully seated in the slot.
Figure 68: Install a DC PSM in an ACX7348 Router
4. Connect to power.
a. Remove the terminal block cover protecting the terminals on the faceplate.
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