Installing Mx2020 Ac Power Supply Modules; Table 37: Input Ac Power Mapping For Three-Phase Wye Pdm2 And Pdm3 - Juniper MX2020 Hardware Manual

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Installing MX2020 AC Power Supply Modules

Copyright © 2013, Juniper Networks, Inc.

Table 37: Input AC Power Mapping for Three-Phase Wye PDM2 and PDM3

INP0/2–LEFT INP0/2–RIGHT
(PDM2-input #2) (PDM2-input #1)
PSM9 PSM12
PSM10 PSM13
PSM11 PSM14
PSM15
PSM16
PSM17
MX2020 Three-Phase Wye AC Power Distribution Module Description on page 44
Connecting AC Power to a MX2020 Router with Three-Phase Wye AC Power Distribution
Modules on page 122
Powering On the AC-Powered MX2020 Router on page 129
MX2020 AC Power Subsystem Electrical Specifications on page 369
MX2020 AC Power Cord Specifications on page 370
Preventing Electrostatic Discharge Damage to an MX2020 Router on page 320
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
position), for the bottom feed
(right switch) to the ON
connected). If both DIP switches
and bottom feeds are 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
of failure of feed
Chapter 9: Grounding and Providing Power to the MX2020 Router
INP1/3–LEFT
(PDM3-input #1)
PSM9
PSM10
PSM11
PSM12
PSM13
PSM14
(expected to be connected), and DIP switch
INP0
(top position), for the top feed
and are turned to the
0 1
will power be drawn from feed
0
INP1/3–RIGHT
(PDM3-input #2)
PSM15
PSM16
PSM17
) position.
O
(left switch) to the (top
0 ON
INP1 (expected to be
position, then both top
ON
Figure 76 on page 128).
, only in case
0
.
1
1
127