Owner`s manual

108
14.1 V74 & V75 CABLING
CABLING
Ports on the V74 & V75 modules use the following pins
and signals for communication:
V74 & V75 PINOUT INFORMATION
PIN SERIAL
INTERFACE
DIRE-
CTIO
N
DESCRIPTION
RS-
232
V74/7
5
RS-
422
V75
1 DTR HSO
or
+12V
Outpu
t
232 - Data
Terminal
Ready
422 -
Handshake
Out or +12V
Used to enable or disable
the receiving of
characters
2 GND/
DCD-
OUT
GND ---/
Outpu
t
Signal Ground(Default) or User selectable
DCD "OUT"
3 RTS TX+ Outpu
t
232 - +12V Out
422 - Transmit Data (+)
4 TX TX- Outpu
t
232 - Transmit Data
422 - Transmit Data (-)
5 RX RX- Input 232 - Receive Data
422 - Receive Data (-)
6 DSR RX+ ---/
Input
232 - Handshake In
422 - Receive Data (+)
7 GND/
DCD-
IN
GND ---- Signal Ground(Default) or User selectable
DCD "IN"
8 CTS HSI Input 232 - Clear
To Send
422 -
Handshake In
Used to enable or disable
the transmitting of
characters