Chamberlain EL MODELS User Manual
Page 6
Wire Connections to the Unit
Input Board Connections
1. Door 1 Exit Request and Door Status
2. Door 2 Exit Request and Door Status
3. Door 3 Exit Request and Door Status
4. Door 4 Exit Request and Door Status
5. Postal Lock Input
6. AutoCall Input
7. Power 12 VAC Input
Output Board Connections
8. Resident Tip/Ring
9. Telco Tip/Ring
10. Relay 4, NO, NC, COM
11. Relay 3, NO, NC, COM
12. Relay 2, NO, NC, COM
13. Relay 1, NO, NC, COM
NOTE: All relays are factory set to “Strike”
and “10 sec.”
and “10 sec.”
DO NOT overload the removable
terminal block connectors. One wire
per hole.
terminal block connectors. One wire
per hole.
20-Pin
to Main Board
14-Pin
to Main Board
IO Output Board
IO Input Board
J2
J3
LED 2
LED 1
RELAY 1
RELAY 2
RELAY 3
RELAY 4
8
9
DOOR
STAT 4
EXIT
REQ 4
COM
4
3
2
1
5
6
7
10
11
12
13
DOOR
STAT 3
EXIT
REQ 3
COM
DOOR
STAT 4
EXIT
REQ 2
COM
DOOR
STAT 1
EXIT
REQ 1
COM
J5
J7
J6
J4
POSTAL
AUTO
J1
POWER
12VAC/DC
POWER
12VAC/DC
J3
J5
J4
J1
NO
NC
C
NO
NC
C
NO
NC
C
NO
NC
C
LED 4
LED 3
RES
TELCO
J6
J8
Wire Connections to the Unit