Tyco DigiTrace 920 Series - C.3 Communication Wiring

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