Converting an MX2000 Router Between AC and DC Power
Before performing power procedures, ensure that power is removed from the AC or DC circuit. To ensure that all power is off, locate the circuit breaker on the panel board that services the AC or DC circuit, switch the circuit breaker to the off position, and tape the switch handle of the circuit breaker in the off position.
A system cannot operate with a mix of AC and DC power supplies.
To convert an MX2000 router between AC and DC power or HVAC/HVDC power, you must completely power off the system, remove the power distribution modules (PDMs), remove the power supplies, and then adjust the AC/DC setting as described here.
- Remove the adjustment bar locking screws shown in Figure 1 using a Phillips screw driver.
There are eight screws per PSM.Note:
The AC/DC settings and the screw locations are the same for MX2008, MX2010, and MX2020 routers.
Figure 1: Removing the MX2000 Router Adjustment Bar Locking Screws
Note:If you are switching from AC PDMs or 48-V DC PDMs to high-voltage universal (HVAC/HVDC) PDMs, they work with either AC or DC bar setting and no mechanical change is needed. You can skip steps 6 to 8.
The 240 VDC China PDMs and PSMs require setting the locking bars to the DC position as described below.
- Insert a screw driver into each adjustment slot and slide
the adjustment bar to the right for DC configurations or to the left
for AC configurations. Refer to Figure 2.Figure 2: Changing the AC and DC Setting on an MX2000 Router
