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MX2008 Three-Phase Delta AC Power Distribution Module Description
NOTE:
The MX2008, MX2010, and MX2020 routers support the same power modules (AC/DC
PSMs and AC/DC PDMs).
Each three-phase delta AC power distribution module (PDM) weighs approximately 12 lb (5.44 kg). A metal
wiring compartment contains two AC terminal blocks and ground labeled GND. One AC terminal block
consists of three input terminals that serves six power supply modules (PSMs) and the second terminal
block serves three PSMs. The terminal block on the left is labeled A1, B1, and C1 (bottom to top). The
second terminal block on the right is labeled A2, B2, and C2 (bottom to top). The PDMs are located at the
rear of the chassis in slots PDM0/Input0 through PDM1/Input1, (bottom to top). LEDs provide the status
of the PDM.
Figure 22 on page 67
NOTE:
The three-phase delta AC PDM terminal blocks will be flipped depending on which slot
the PDM gets plugged into.
Figure 22: Three-Phase Delta AC Power Distribution Module
Figure 23 on page 68
shows the three-phase delta AC PDM connections.
CAUTION:
before connecting the power input cables. If the PDM must be removed, both input
power cables must be uninstalled and removed from the PDM before the PDM can
be removed from the chassis. The MX series chassis is not sensitive to phase rotation
sequence—either clockwise or counter-clockwise will operate correctly.
shows the three-phase delta AC PDM.
The three-phase delta AC PDM must be installed and secured in the chassis
67
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