Mx2020 Dc Power Supply Module Description; Figure 48: Dc Power Distribution Module Leds; Table 33: Dc Power Distribution Module Leds - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide
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MX2020 DC Power Supply Module Description

96

Figure 48: DC Power Distribution Module LEDs

Table 33: DC Power Distribution Module LEDs

Label Color
Green
–48V=80A
–
Red
MX2020 Component LEDs on the Craft Interface on page 39
MX2020 Power Subsystem Description on page 83
MX2020 DC Power Distribution Module Description on page 94
MX2020 DC Power Subsystem Electrical Specifications on page 179
The MX2020 supports a two zone DC power system. Each zone (upper and lower) is
provided power by one half of the power subsystem. In the DC power configuration, the
router contains up to eighteen DC PSMs located at the rear of the chassis in slots
through (bottom), and slots
PSM8
PSMs in slots PSM0 through
components, MPCs in slot
and Fan Trays , , and . The DC PSMs in slots
0 1 2
the upper half of the router components, MPCs in slot
and , SFBs in slot through
1 0
State Description
On RTN and –48V input feeds are connected. PDM is
functioning normally.
Off RTN input feed is not connected or present.
–48V input feed is not connected or present.
RTN and –48V input feeds are not connected.
On RTN or –48V input feeds may be reversed, feed live.
through
PSM9 PSM17
PSM8 provide power to the lower half of the router
through , CB-REs in slot
0 9
PSM9
, and Fan Trays , , and
7 0 2
(top) (left to right). The DC
and , SFBs in slot through
0 1 0
through provide power to
PSM17
10 through 19 , CB_REs in slot
.
3
Copyright © 2015, Juniper Networks, Inc.
PSM0
,
7
0 ,