Installing Mx2020 Ac Power Supply Modules; Table 81: Input Ac Power Mapping For Pdm2 And Pdm3 - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide
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Installing MX2020 AC Power Supply Modules

258

Table 81: Input AC Power Mapping for PDM2 and PDM3

PDM2/Input0
PDM2/Input0 (Left) (Right)
PSM9 PSM12
PSM10 PSM13
PSM11 PSM14
– PSM15
– PSM16
– PSM17
MX2020 Three-Phase Wye AC Power Distribution Module Description on page 88
Connecting AC Power to an MX2020 Router with Three-Phase Wye AC Power
Distribution Modules on page 252
Powering On the AC-Powered MX2020 Router on page 260
MX2020 AC Power Subsystem Electrical Specifications on page 158
MX2020 AC Power Cord Specifications on page 154
Preventing Electrostatic Discharge Damage to an MX2020 Router on page 558
To install an MX2020 AC PSM:
Verify that the power switch on the PSM is in the off (
1.
On the PSM, slide the plastic cover away from the input mode switch to expose the
2.
dual DIP switches. Move the input mode DIP switch
for the bottom feed
INP0
to the ON position for the top feed
switches and are turned to the
0 1
expected to be connected (see
In addition, a PSM failure triggers the alarm LED on the craft interface.
NOTE: The DIP switches are only used to indicate presence of a feed. If
both feeds are present, power is always drawn from feed
drawn from feed
PDM3/Input1 (Left)
PSM9
PSM10
PSM11
PSM12
PSM13
PSM14
(expected to be connected), and DIP switch
INP1 (expected to be connected). If both DIP
position, then both top and bottom feeds are
ON
Figure 121 on page 259).
only if feed fails.
1 0
PDM3/Input1
(Right)
PSM15
PSM16
PSM17
–
–
–
) position.
O
(left switch) to the position
0 ON
(right switch)
1
. Power will be
0
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