Installing Mx2020 Dc Power Supply Modules; Figure 79: Connecting Dc Power To The Mx2020 Router - Juniper MX2020 Hardware Manual

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

134

Figure 79: Connecting DC Power to the MX2020 Router

D
Grounding points
(on chassis)
DC Power Cable Specifications for the MX2020 Router on page 360
Preventing Electrostatic Discharge Damage to an MX2020 Router on page 320
Powering On the DC-Powered MX2020 Router on page 136
To install an MX2020 DC PSM:
Verify that the power switch 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
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
Cable lug
Split
washer
Nut
(expected to be connected), and DIP switch
INP0
(top position), for the top feed
0 and 1 are turned to the
will power be drawn from feed
0
Terminal
studs
) position.
O
0 (left switch) to the ON (top
(expected to be
INP1
ON position, then both top
Figure 80 on page 135).
0 , only in case
.
1
Copyright © 2013, Juniper Networks, Inc.
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