Installing Mx2020 Dc Power Supply Modules; Figure 124: Connecting Dc Power To The Mx2020 Router - Juniper MX2020 Hardware Manual

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Installing MX2020 DC Power Supply Modules

Copyright © 2015, Juniper Networks, Inc.

Figure 124: Connecting DC Power to the MX2020 Router

D
Grounding points
(on chassis)
DC Power Cable Specifications for the MX2020 Router on page 184
Preventing Electrostatic Discharge Damage to an MX2020 Router on page 558
Powering On the DC-Powered MX2020 Router on page 273
To install an MX2020 DC PSM:
Verify that the power switches on all PSMs are 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 position for the top feed
ON
switches 0 and 1 are turned to the
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
Chapter 19: Connecting the Router to Power
Cable
Flat
lug
washer
Split
washer
Nut
(expected to be connected), and DIP switch
(expected to be connected). If both DIP
INP1
ON position, then both top and bottom feeds are
Figure 125 on page 266).
only if feed fails.
1 0
Terminal
studs
) position.
O
0 (left switch) to the ON position
(right switch)
1
0 . Power will be
265