Installing an MX2000 Router DC Power Distribution Module (240 V China)
WARNING: Before performing DC power procedures, disconnect all power sources.
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 power distribution module (PDM) in an MX2000 Router:
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. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to
one of the ESD points on the chassis.
3. Move the DC circuit breaker on the power input source to the off position.
4. [Optional]—If you are switching from an AC PDM to DC PDM, see “Converting an MX2000 Router
Between AC and DC Power” on page 433 for instructions on how to change the setting on the internal
bar of the power distribution unit (PDU) cage to DC.
5. Remove the blank panel covering the PDM slot in the chassis.
6. Open the locking levers on the PDM.
7. While holding both handles, guide the PDM until the locking levers are inserted into the chassis. With
both hands push the locking levers simultaneously until the PDM is fully seated into the chassis (see
Figure 195 on page 401).
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