Power Consumption for an AC-Powered MX240 Router
We recommend that you provision 14.5 A @ 100 VAC (1450 W) or 11.0 A @ 200 VAC (2200 W) for each input.
If you do not plan to provision 14.5 A @ 100 VAC (1450 W) or 11.0 A @ 200 VAC (2200 W) for each input, you can use the information in Table 1 and Table 2 to calculate the power consumption and thermal output for your hardware configuration.
For high-capacity power supplies,, we recommend that you provision 16.0 A @ 100 VAC (1600 W) or 16.0 A @ 200 VAC (2200 W) for each input. If you do not plan to provision 16.0 A @ 100 VAC (1450 W) or 11.0 A @ 200 VAC (2200 W) for each input, you can use the information in you can use the information in Table 1 and Table 2 to calculate the power consumption and thermal output for your hardware configuration.
Table 1 lists the power requirements for base AC-powered routers operating under typical voltage conditions and includes various power supply configurations.
Table 1: AC Base Router Power Requirements
Power Supply Configuration | Power Requirement (Watts) |
|---|---|
High-line nonredundant configuration @ 220 V includes one AC power supply, the midplane, craft interface and fan tray running at normal speed. | 60 W |
High-line redundant configuration @ 220 V includes two AC power supplies, the midplane, craft interface and fan tray running at normal speed | 90 W (approximate) |
Low-line nonredundant configuration @ 110 V includes two AC power supplies, the midplane, craft interface and fan tray running at normal speed | 90 W (approximate) |
Low-line redundant configuration @ 110 V) includes four AC power supplies, the midplane, craft interface, and fan tray running at normal speed | 150 W (approximate) |
| High- Capacity Power Supplies | |
High-line nonredundant configuration @ 220 V includes one high-capacity AC power supply, the midplane, craft interface and high-capacity fan tray running at normal speed. | 94 W |
High-line redundant configuration @ 220 V includes two high-capacity AC power supplies, the midplane, craft interface and high-capacity fan tray running at normal speed | 124 W (approximate) |
Low-line nonredundant configuration @ 110 V includes two high-capacity AC power supplies, the midplane, craft interface and high-capacity fan tray running at normal speed | 124 W (approximate) |
Low-line redundant configuration @ 110 V) includes four high-capacity AC power supplies, the midplane, craft interface, and high-capacity fan tray running at normal speed | 184 W (approximate) |
Table 2 lists the power requirements for various hardware components when the router is operating under typical voltage conditions.
Table 2: Component Power Requirements for AC-Powered Routers
Component | Power Requirement (Watts) | Power Requirement (Watts) with 85% Efficiency |
|---|---|---|
Fan tray (full speed) – Fan tray (normal speed) | 70 W – 50 W = 20 W | 24 W |
High capacity fan tray | 85 | 100 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 |
FPC2 (without PICs) | 110 W | 130 W |
FPC3 (without PICs) | 180 W | 212 W |
MPC (fixed configuration) | 440 W | 518 W |
MPC (without MICs) | 294 W | 346 W |
These examples use generalized values per DPC.
For exact DPC, MPC, MIC, and PIC power requirements, see the MX Series 3D Universal Edge Routers Line Card Guide.
Typical power consumption for AC-powered routers:
- Minimum AC-powered low-line configuration @ 110 V
(includes 85% efficiency):Base router (with fan tray at normal speed and two power supplies) + 1 SCB + 1 Routing Engine + 1 DPC =90 W + 176 W + 106 W + 367 W = 739 W
- Maximum AC-powered low-line configuration @ 110 V
with one host subsystem and a third DPC in the multifunction slot
(includes 85% efficiency):Base router with four power supplies + fan tray at full speed + 1 SCB + 1 Routing Engine + 3 DPCs =150 W + 24 W + 176 W + 106 W + 3 (429 W) = 150 W + 24 W + 176 W + 106 W + 1287 W = 1743 W
- Minimum AC-powered high-line configuration @ 220 V
(includes 85% efficiency):Base router with one power supply + fan tray at normal speed + 1 SCB + 1 Routing Engine + 1 DPC =60 W + 176 W + 106 W + 367 W = 654 W
- Maximum AC-powered high-line configuration @ 220 V
with one host subsystem and a third DPC in the multifunction slot
(includes 85% efficiency):Base router with two power supplies + fan tray at full speed + 1 SCB + 1 Routing Engine + 3 DPCs =90 W + 24 W + 176 W + 106 W + 3 (429 W) = 90 W + 24 W + 176 W + 106 W + 1287 W = 1683 W
- Example of calculating system thermal output: Watts AC PEM * 3.41 = BTU/hr 1743 W * 3.41 = 5944 BTU/hr
