Cisco CRS-1 System Description page 38

Modular Configuration AC Power Module
Modular Configuration AC Power Module
The AC power module is an AC power module that converts single phase input AC power into the DC power
necessary to power chassis components.
The AC power module takes input AC power from the power shelf, converts the AC into DC, provides filtering
and control circuitry, provides status signaling, and passes the DC power to the chassis midplane.
Figure 16: Modular Configuration AC Power Module
Each power module has its own power connector to connect input AC power. The input AC power for each
power module is as follows:
• Each AC power module has a single-phase, 3-wire connection:Input: 200 to 240 VAC, 50 to 60 Hz, 16A.
• A 3-pin IEC-320 C21 90 degree female plug is inserted into a 3-pin IEC-320 C22 male plug at the rear
The AC power enters the AC power at the rear of the power shelf. Once the power enters the AC power
module, internal circuits rectify the AC into DC, filter and regulate it. Each AC power module provides two
output voltages, as follows:
• Output Voltage 1 is -54VDC at 55.5A
• Output Voltage 2 is +5V at 0.75A
Each AC power module contains an ID EEPROM that stores information used by control software (for
example, part number, serial number, assembly deviation, special configurations, test history, and field
traceability data).
Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description
28
Tolerance: +/-10%(180 to 264) VAC, 50 to 60 Hz, 16A.
of each power module.
Cisco CRS 8-Slot Line Card Chassis Enhanced Router Power Systems