2.16.2.1 Conflict .............................................................................................12
2.16.2.2 Red Fail ............................................................................................12
2.16.2.3 Dual Indication ..................................................................................12
2.16.2.4 Minimum Yellow Clearance...............................................................13
2.16.2.5 Yellow Plus Red Clearance...............................................................13
2.16.3 Red and Yellow Input Enable .....................................................................13
2.16.4 Flash Rate Detection..................................................................................13
2.16.5 FYA Yellow Trap Conflict Detection............................................................13
Section 3 INPUT SIGNALS ..............................................................................................15
3.1 LEDguard®Field Signal Sensing ...........................................................................15
3.2 Load Switch Current..............................................................................................15
3.3 PDA Control Signal Inputs.....................................................................................15
3.3.1 Local Flash Status .......................................................................................15
3.3.2 Main Contactor (MC) Coil Status..................................................................15
3.3.3 Main Contactor (MC) Secondary Status .......................................................15
3.3.4 FTR Coil Drive Status ..................................................................................16
3.3.5 Circuit Breaker (CB) Trip Status ...................................................................16
3.3.6 Front / Rear Door Switch..............................................................................16
3.4 Monitor Interlock....................................................................................................16
3.5 External Test Reset input ......................................................................................16
3.6 Serial Bus #1 Address Inputs ................................................................................16
3.7 Serial Bus #1 Disable input ...................................................................................17
3.8 CMUip-2212 Temperature.....................................................................................17
Section 4 FRONT PANEL DESCRIPTION .......................................................................18
4.1 Indicators ..............................................................................................................18
4.1.1 Power Indicator ............................................................................................18
4.1.2 48VDC FAIL Indicator ..................................................................................18
4.1.3 24VDC FAIL Indicator ..................................................................................18
4.1.4 12VDC FAIL Indicator ..................................................................................18
4.1.5 CONFLICT Indicator ....................................................................................18
4.1.6 LACK OF SIGNAL Indicator .........................................................................18
4.1.7 MULTIPLE Indicator.....................................................................................18
4.1.8 CU Indicator.................................................................................................18
4.1.9 LOCAL FLASH Indicator ..............................................................................18
4.1.10 CLEARANCE Indicator ..............................................................................19
4.1.11 FIELD CHECK Indicator.............................................................................19
4.1.12 SB #1 ERROR Indicator.............................................................................19
4.1.13 SB #3 ERROR Indicator.............................................................................19
4.1.14 DIAGNOSTIC Indicator ..............................................................................19
4.1.15 SB #1 RX Indicator.....................................................................................19
4.1.16 SB #3 RX Indicator.....................................................................................19
4.2 Reset Button .........................................................................................................19
4.3 Datakey.................................................................................................................19
Section 5 SPECIFICATIONS............................................................................................21
5.1 Electrical ...............................................................................................................21
5.1.1 CMU-2212-HV .............................................................................................21
5.1.2 CMU-2212-LV..............................................................................................22
5.1.3 CMU-2212-VHV ...........................................................................................22
5.2 Timing ...................................................................................................................23
5.3 Mechanical............................................................................................................24
5.4 Environmental .......................................................................................................24
Section 6 CONNECTOR ASSIGNMENTS........................................................................25
6.1 Main DIN Connector..............................................................................................25
