Technical Documentation

Power Consumption for an AC-Powered SRX5600 Services Gateway

We recommend that you provision 11.0 A @ 200 VAC (2200 W) or 14.5 A @ 110 VAC (1595 W) for each input.

If you do not plan to provision 11.0 A @ 200 VAC (2200 W) or 14.5 A @ 110 VAC (1595 W) for each input, you can use the information in Table 1 and Table 2 to calculate power consumption for various hardware configurations, and thermal output.

Table 1 lists the power requirements for base AC-powered devices operating under typical voltage conditions. It includes the efficiency for the AC power supplies.

Table 1: Base System AC Power Requirements

Component

Power Requirement (Watts)

Low-line nonredundant configuration @ 110 V includes three AC power supplies, midplane, craft interface, and the fan tray (running at normal speed)

180 W (approximate)

Low-line redundant configuration @ 110 V includes four AC power supplies, midplane, craft interface, and the fan tray (running at normal speed)

210 W (approximate)

High-line nonredundant configuration @ 220 V includes two AC power supplies, one Routing Engine, one SCB, midplane, craft interface, and the fan tray (running at normal speed)

150 W (approximate)

High-line redundant configuration @ 220 V includes four AC power supplies, midplane, craft interface, and the fan tray (running at normal speed)

210 W (approximate)

Table 2 lists the power requirements for various hardware components when the services gateway is operating under typical voltage conditions.

Table 2: Component Power Requirements

Component

Power Requirement (Watts)

Power Requirement (Watts) with 85% efficiency

Fan tray (full speed) – Fan tray (normal speed)

110 W – 80 W = 30 W

35 W

SCB

150 W

176 W

Routing Engine

90 W

106 W

IOC—Generalized typical value

312 W

367 W

IOC—Generalized maximum value

365 W

429 W

SPC—Generalized typical value

213 W

251 W

SPC—Generalized maximum value

351 W

413 W

These examples use generalized values per IOC and SPC.

Typical power consumption for AC-powered devices:

  • Minimum AC-powered low-line configuration @ 110 V:
    Base device (low-line nonredundant) + 1 SCB + 1 Routing Engine + 1 IOC—Generalized typical value + 1 SPC—Generalized typical value=180 W + 176 W + 106 W + 367 W + 251 W = 1080 W
  • Maximum AC-powered low-line configuration @ 110 V:
    Base device (low-line redundant) + fan tray at full speed + 2 SCBs + 1 Routing Engine + 5 IOCs—Generalized maximum value + 1 SPC—Generalized maximum value=210 W + 35 W + 2(176) W + 106 W + (5)429 W + 413 W= 210 W + 35 W + 352 W + 106 W + 2145 W + 413 W = 3261 W
  • Typical system thermal output (based on maximally configured AC-powered services gateway @ 110 V input):
    Watts * 3.41 = BTU/hr 3261 W * 3.41 = 11,120 BTU/hr
  • Minimum AC-powered high-line configuration @ 220 V:
    Base device (high-line nonredundant) + 1 SCB + 1 Routing Engine + 1 IOC—Generalized typical value + 1 SPC—Generalized typical value=150 W + 176 W + 106 W + 367 W + 251 W = 1050 W
  • Maximum AC-powered high-line configuration @ 220 V:
    Base device (high-line redundant) + fan tray at full speed + 2 SCBs + 1 Routing Engine + 5 IOCs—Generalized maximum value + 1 SPC—Generalized maximum value =210 W + 35 W + 2(176) W + 106 W + (5)429 W + 413 W = 210 W + 35 W + 352 W + 106 W + 2145 W + 413 W = 3261 W
  • Typical system thermal output (based on maximally configured AC-powered services gateway @ 220 V input):
    Watts * 3.41 = BTU/hr 3261 W * 3.41 = 11,120 BTU/hr

Published: 2010-08-03

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