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MX5, MX10, MX40, and MX80 Universal Routing Platforms Hardware Guide
40
Table 21: DC-Powered Base Router Power Requirements for the Fixed MX80 Router
Fixed Chassis Configuration
Chassis running at high activity, with four 10-Gigabit
Ethernet XFPs, and fans running at high speed
Table 22: DC-Powered Base Router Power Requirements for the MX5, MX10, MX40, and
Modular MX80 Router
Modular Chassis Configuration
Chassis running at high activity, with four 10-Gigabit
Ethernet XFPs, two MICs, and fans running at high speed
Table 23 on page 40
lists the power requirements for various hardware components
when the router is operating under typical voltage conditions.
Table 23: Component Power Requirements for DC-Powered Routers
Component
MIC (generalized value)
These examples show how to calculate typical power consumption for your DC-powered
router configuration. The examples use generalized values for MICs. For exact MIC power
requirements, see the
MX Series Interface Module Reference
Typical power consumption for modular DC-powered routers:
Active DC-powered router with one MIC:
Base router (high activity, with four 10-Gigabit Ethernet XFPs, and fans running at high
speed) + 1 MIC =
5 A + 0.73 A = 5.73 A @ –48 VDC = 275 W DC
Active DC-powered router with two MICs:
Base router (high activity, with four 10-Gigabit Ethernet XFPs, and fans running at high
speed) + 2 MICs
5 A + 2(0.73 A) = 6.46 A @ –48 VDC = 310 W DC
Input current from a DC source other than –48 VDC (based on maximum configuration;
applies to DC power supply only):
Power
Requirement
(Watts)
320 W
Power
Requirement
(Watts)
310 W
Power Requirement
(Watts)
35 W
.
Copyright © 2019, Juniper Networks, Inc.
Current
Requirement
(Amps @
–48 VDC)
6.7 A
(approximate)
Current
Requirement
(Amps @
–48 VDC)
6.5 A
(approximate)
Current
Requirement
(Amps @
–48 VDC)
0.73 A
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