M10i Router Power Requirements
Table 1 lists the power requirements for various hardware components when the router is operating under typical voltage conditions. For PIC power requirements, see the M10i Multiservice Edge Router PIC Guide.
Table 1: Component Power Requirements
Component | Power Requirement (Watts) @ 48 V | Power Requirement (Amps) @ 48 V |
|---|---|---|
Base system including two HCMs, two power supplies, and one Routing Engine (with fans running at normal speed) | 88.3 | 1.8 A (approximate) |
Routing Engine | 33.6 | 0.7 A |
CFEB/CFEB-E | 67.2 | 1.4 A |
HCM | 10 | 0.2 A |
You can use the information in Table 1 and the M10i Multiservice Edge Router PIC Guide to calculate power consumption for various hardware configurations, input current from a different source voltage, and thermal output, as shown in the following examples. (The examples use a generalized value for PICs of 0.625 A @ 48 V each.)
- Power consumption for minimum configuration:Base system + 1 CFEB + 1 PIC =1.8 A + 0.625 A = 2.425 A @ 48 V = 116.4 W DC
- Power consumption for maximum configuration:Base system + 2 CFEBs + 8 PICs + second Routing Engine =1.8 A + 2(1.4 A) + 8(0.625_A) + 0.7 A = 1.8 A + 2.8 A + 5_A + 0.7 A = 10.3 A @ 48 V = 494.4 W DC
- Input current from a DC source other than 48 V (based
on maximally configured router; applies to DC power supply only):(54 VDC input) x (input current X) = (48 VDC input) x (input current Y)54 x X = 48 x 8.9 AX = 48 x 8.9 A / 54 = 7.9 A
- Example of calculating system thermal output for an AC-powered
router:Watts DC/65% AC PEM efficiency/0.293 = BTU/hr494.4/0.65/0.293 = 2595.96 BTU/hr
- Example of calculating System thermal output for aDC-powered
router:Watts DC/0.293 = BTU/hr494.4/0.293 = 1687.37 BTU/hr
Note: We recommend that you provision at least 9.1 A @ 48 VDC and use a facility circuit breaker rated for 15 A minimum. Doing so enables you to operate the router in any configuration without upgrading the power infrastructure, and allows the router to function at full capacity using multiple power supplies.
