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Cisco CRS-1 Carrier Routing System 8-Slot Line Card Chassis Site Planning Guide
OL-5802-06
Chapter 2 Power and Cooling
AC Power Requirements
Figure 2-6 AC Delta PDU Wiring
AC Wye 3-Phase Wiring
Figure 2-7 shows a PDU wired for AC Wye 3-phase power. As shown, input AC power is routed to
three internal 2.5-kW power modules in the rectifier, where it is converted into DC power (nominal
54.5
VDC, 46 ADC) and routed to the three load zones of the chassis.
The AC Wye PDU is shipped with a 14-foot (4.3 m) AC power cord. The power cord has a 5-pin IEC
60309 plug that is rated for 16 A (International) and 20 A (North America). It plugs into an IEC 60309
receptacle (16 or 20 A).
Figure 2-7 AC Wye PDU Wiring
2.5-kW
power
module
No. 2
2.5-kW
power
module
No. 3
122782
2.5-kW
power
module
No. 1
Phase XPhase X
Phase Y
Phase Z
Safety Ground
Plugs into L15-30R receptacle
200 to 240 VAC, 30 A, 3-phase
122783
Phase XPhase X
Phase Y
Phase Z
Neutral
Safety Ground
Plugs into IEC 60309 receptacle,
200 to 240 VAC (phase-to-neutral),
20 A (North America) 16 A (International), 3-phase
2.5-kW
power
module
No. 1
2.5-kW
power
module
No. 2
2.5-kW
power
module
No. 3