CMU-24VDC-ITL Cabinet Monitor Unit
Operations Manual
Eberle Design Inc.
Page 18
Section 6
CONNECTOR ASSIGNMENTS
6.1 MAIN DIN CONNECTOR
The CMU-24VDC main connector is a two row DIN 4161264 Header Type:
Pin
Function
Pin
Function
A1
+24VDC Monitor
B1
Reserved
A2
+12VDC Monitor
B2
External Test Reset
A3
VDC Ground
B3
Serial Bus #1 Disable
A4
Monitor Interlock
B4
Reserved
A5
Address 0
B5
Address 1
A6
Reserved
B6
Reserved
A7
SB1
B7
SB1 TxData -
A8
SB1
B8
SB1 RxData -
A9
SB1 T
B9
SB1 TxClock -
A10
SB1 R
B10
SB1 RxClock -
A11
Reserved
B11
Reserved
A12
Reserved
B12
Reserved
A13
Reserved
B13
Reserved
A14
Reserved
B14
Reserved
A15
Line Sync +
B15
Line Sync -
A16
B16
Nreset -
A17
Pow
B17
PowerDown -
A18
SB3
B18
SB3 TxData -
A19
SB3
B19
SB3 RxData -
A20
SB3 Clock+
B20
SB3 Clock-
A21
LF Status
B21
LF Status
A22
Output Relay NO
B22
Output Relay NO
A23
CB Trip Status
B23
Reserved
A24
MC Coil Status
B24
Reserved
A25
MC Secondary Status
B25
Reserved
A26
FTR Coil Drive Status
B26
Reserved
A27
Door Switch Front
B27
Reserved
A28
Door Switch Rear
B28
Reserved
A29
Reserved
B29
Reserved
A30
Reserved
B30
24VDC Power
A31
Equipment Ground
B31
Reserved
A32
Reserved
B32
24VDC Ground
Note: Output Relay NO is open during FSA (de-energized).
6.2 EIA-232 CONNECTOR
The front panel EIA-232 connector is a 9 pin metal shell “DB9S” female subminiature type
connector. Because the port is configured as a DTE device, a null modem cable is required
to connect directly to a personal computer COMM port.
Pin #
Function
I/O
1
Reserved
-
2
Receive data
I
3
Transmit Data
O
4
Reserved
-
