General Information
P/N 06-237041-001 1-29 February 2011
POWER MANAGEMENT
UNIT (PMU) BOARD
Each Power Management Unit can interface with two AC-to-DC switching power
supplies for a total of 10.8 A @ 27.6 Vdc. Maximum of 4 PMU’s in fully
expanded system.
AC-to-DC Power
Conversion:
1 or 2 switching power supplies per PMU
Primary AC Power Input:
NOTE: Primary power is
selected by setting the slide
switch on the side of the
power supply.
1 Power Supply Unit: 2 Power Supply Units:
120 Vac, 50/60 Hz, 3.2 A 120 Vac, 50/60 Hz, 6.4 A
240 Vac, 50/60 Hz, 1.6 A 240 Vac, 50/60 Hz, 3.2 A
DC Power Output: 5.4A @ 27.6 Vdc 10.8A @ 27.6 Vdc
Trouble Relay Output: 1.0 A @ 30 Vdc (resistive)
Auxiliary Outputs: 2 per PMU, power-limited, special application
Aux. Output Operating
Voltage Range:
19.2 - 27.6 Vdc , power-limited
Aux. Output Max. Current: 2 A @ 470 F max. per output, power-limited
Battery Charging Circuit
Voltage:
27.0 Vdc (nominal)
Maximum Battery Charging
Circuit Current: 4.0 A (one Power Supply Unit); 8.9 A (two power supply units)
Maximum Battery Charging
Capacity:
165 AH
MAIN CONTROLLER BOARD (MCB)
DC Power Input to MCB: 27.6 Vdc @ 10.8 A maximum
KEYPAD/DISPLAY MCB includes one (1) Keypad/Display (mounted to board).
RS485 Output: EIA/TIA-485, AWG 18, twisted unshielded pair
4,000 ft. (1,219 m) maximum wire length
Use low capacitance cable – maximum 15pF per ft.
Baud Rate: 38,400 baud
Synch In/Out: 3.3 Vdc Logic - for local connections to RDCM and R-LAM Modules only
ON-BOARD RELAYS MCB includes three (3) Form-C Voltage Free, Programmable Relays and one (1)
dedicated Form-C Trouble Relay.
Relay Contact Rating: 3.0 A @ 24 Vdc (resistive)
3.0 A @ 120 Vac (resistive)
ON-BOARD RELEASE-
NOTIFICATION
APPLIANCE CIRCUITS
(R-NACs)
MCB includes two (2) R-NAC Circuits.
Refer to Specifications for R-NAC Expansion Card
End-of-Line Resistor: 10 K, 5%, 1/2 W
Total Voltage Drop at
End-of-Line:
2 V
Max. Supervisory Current: 5mA
Item Description
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