1. Calculate the power requirements (usage) using the values in “Power Requirements for an MX960
Router” on page 205 as shown in Table 92 on page 218.
Table 92: Sample Power Requirements for an MX960 Router
ZonePower RequirementPart NumberChassis Component
—50 W
1
MX960BASE-AC-HIGHBase system
Zone 0 (lower fan
tray) and Zone 1
(upper fan tray)
320 W * 2 = 640 WFFANTRAY-MX960-HCHigh-capacity cooling system
Zone 1440 W * 6 = 2640 WMPC-3D-16XGE-SFPPMPC - slots 0 through 5
Zone 0440 W * 5 = 2200 WMPC-3D-16XGE-SFPPMPC - slots 7 through 11
Zone 1185 W
90 W
SCBE2-MX with
RE-S-1800X2-8G
SCB 0
Zone 0185 W
90 W
SCBE2-MX with
RE-S-1800X2-8G
SCB 1
Zone 0185 WSCBE2-MXSCB 2 - slot 6
6265 W
3005 W
3260 W
MX960 normal-capacity AC (not zoned)
Zone 0 total output power
Zone 1 total output power
1
Divided equally between zone 0 and zone 1.
2. Evaluate the power budget, including the budget for each zone if applicable. In this step, we check the
required power against the maximum output power of available power supply options.
Table 93 on page 219 lists the power supplies, their maximum output power, and unused power (or a
power deficit).
218
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