CMUip-2212 Cabinet Monitor Unit
Operations Manual
Eberle Design Inc.
Page 16
Section 5.1) on this input indicates the Signal Bus is powering the load switches. The
CMUip-2212 will report the state of this input in the Type 209 (195) frame.
3.3.4 FTR COIL DRIVE STATUS
The cabinet should be wired such that the FTR COIL DRIVE STATUS input is connected to
the FTR COIL DRIVE signal in the SIGNAL POWER BUS. An active signal on this input
(see Section 5.1) indicates the flash transfer relays are energized and the field signals are
driven from the load switch outputs. The CMUip-2212 will report the state of this input in the
Type 209 (195) frame.
3.3.5 CIRCUIT BREAKER (CB) TRIP STATUS
The cabinet should be wired such that the CB TRIP STATUS input will be connected to the
Auxiliary Switch output of the circuit breaker unit. The active state of this input (see Section
5.1) indicates that the circuit breaker unit is not in the tripped state. The CMUip-2212 will
report the state of this input in the Type 209 (195) frame.
3.3.6 FRONT / REAR DOOR SWITCH
The cabinet should be wired such that voltage is applied to the DOOR SWITCH FRONT or
DOOR SWITCH REAR inputs when the respective door is Open. These inputs will be
considered active (see Section 5.1) when the door is open. These inputs will not be
considered active when the door is closed. The CMUip-2212 will report the state of these
inputs in the Type 209 (195) frame.
The Datakey not present will cause a LFSA if the DOOR SWITCH FRONT input is sensed
as not active (door closed). See section 2.14.3.
3.4 MONITOR INTERLOCK
The MONITOR INTERLOCK input is connected to VDC GROUND within the CMU-2212.
The cabinet should be wired such that the lack of VDC GROUND on this pin forces the
cabinet to the flash mode. This prevents a cabinet from operating without a CMUip-2212
installed.
3.5 EXTERNAL TEST RESET INPUT
The EXTERNAL TEST RESET input is used to reset the CMUip-2212 from the FSA
condition. When the EXTERNAL TEST RESET input is connected to VDC GROUND (True)
all front panel indicators will be illuminated for 100 msec and the OUTPUT relay energized.
Continuously activating the input will not affect CMUip-2212 operation.
The EXTERNAL TEST RESET input is intended for use in testing the CMUip-2212 and
should not be connected in the cabinet.
3.6 SERIAL BUS #1 ADDRESS INPUTS
The Address Select input pins ADDRESS 0 and ADDRESS 1 define the Serial Bus #1
address of the CMU. The pins are left open for a logical False, and are connected to VDC
GROUND for a logical True.
ADDRESS 1 ADDRESS 0 SB #1 ADDRESS
False
False
0x0F
False
True
0x10
True
False
0x11
True
True
0x12
