Juniper Networks MX240 manual AC Base Router Power Requirements

Appendix D: Power Guidelines, Requirements, and Specifications

For AC-powered routers, you can use the information in Table 35 on page 173 and Table 36 on page 173 to calculate the power consumption and thermal output for your hardware configuration.

Table 35 on page 173 lists the power requirements for base AC-powered routers operating under typical voltage conditions and includes various power supply configurations. The base AC-powered router includes the midplane, craft interface and fan tray running at normal speed.

Table 35: AC Base Router Power Requirements

Power Supply Configuration	Power Requirement (Watts)
One AC power supply (high-line nonredundant configuration	195 W (approximate)
@ 220 V)
Two AC power supplies (high-line redundant configuration @	350 W (approximate)
220 V)
Two AC power supplies (low-line nonredundant configuration	270 W (approximate)
@ 110 V)
Four AC power supplies (low-line redundant configuration @	520 W (approximate)
110 V)

Table 36 on page 173 lists the power requirements for various hardware components when the router is operating under typical voltage conditions.

Table 36: Component Power Requirements for AC-Powered Routers

Component	Power Requirement	Power Requirement
	(Watts)	(Watts) with 85%
		Efficiency
Fan tray (full speed) – Fan tray (normal speed)	70 W – 50 W =	24 W
	20 W
SCB	150 W	176 W
Routing Engine	90 W	106 W
DPC—Generalized typical value	312 W	367 W
DPC—Generalized maximum value	365 W	429 W

These examples use generalized values per DPC. For DPC power requirements, see the MX-series Ethernet Services Router DPC Guide.

Typical power consumption for AC-powered routers:

■Minimum AC-powered low-line configuration @ 110 V (includes 85% efficiency):

AC Power Specifications and Requirements ■ 173