Communication Wiring; Alarm Output Wiring - Tyco DigiTrace 920 Series Installation, Operating And Maintenance Manual

C.3 Communication Wiring
C.4 Alarm Output Wiring
C.3.1 2-WIRE MODEM OPTION
Terminal board
Comm 1 6
Comm 2 7
Comm 3 8
Comm 4 22
Comm 5 23
Ground 24
C.3.2 2-WIRE RS-485 OPTION
Terminal board
Comm 1 6
Comm 2 7
Comm 3 8
Comm 4 22
Comm 5 23
Ground 24
C.3.3 RS-232 OPTION
Terminal board
6
Comm 1
7
Comm 2
8
Comm 3
22
Comm 4
23
Comm 5
24
Ground
C.4.1 USED AS A DRY CONTACT
Terminal board
1
+9Vdc Nom
17
Alarm
Relay
18
2
Common
Modem
Modem
Drain
RXD/TXD +
RXD/TXD –
Drain
RXD
DCD
CTS
TXD
RTS
Common
Dry contact
Output
71