Mx2020 Dc Power Supply Module Description; Figure 26: Dc Power Distribution Module Leds; Table 22: Dc Power Distribution Module Leds - Juniper MX2020 Hardware Manual

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MX2020 DC Power Supply Module Description

Copyright © 2013, Juniper Networks, Inc.

Figure 26: DC Power Distribution Module LEDs

Table 22: DC Power Distribution Module LEDs

Label Color
Green
–48V=80A
–
Red
MX2020 Component LEDs on the Craft Interface on page 36
MX2020 Power Subsystem Description on page 39
MX2020 DC Power Distribution Module Description on page 49
MX2020 DC Power Subsystem Electrical Specifications on page 357
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 through
PSM0
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 1 , SFBs in slot 0 through
Chapter 2: MX2020 Hardware Components
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
provide power to the lower half of the router
PSM8
0 through 9 , CB-REs in slot
PSM9
7 , and Fan Trays 0 , 2 , and
(top) (left to right). The DC
0 and 1 , SFBs in slot 0 through
through provide power to
PSM17
through , CB_REs in slot
10 19
3 .
PSM0
7 ,
,
0
51