TransCore encompass 4 - RS-422 Interface

Encompass 4 Reader System Guide
C-6
RS–422 Interface
Table C-4
Table C-4 RS–422 Interface Signal Wiring for Colored-Wire Pair Cable
Signal from Encompass
4 Re
ader
Colored-Wire Pair Cable
Connect to
Signal from
Host
Wire Pair
fro
m
Encompass 4
Reader
Color Used
RS
–422 Transmit positive
Yellow/Red
Yellow Receive (+)
RS
–422 Transmit negative Red Receive (–)
RS
–422 Receive positive
Red/Black
Black Transmit (+)
RS
–422 Receive negative Red Transmit (–)
Signal Ground Yellow/Black Yellow or
Bl
ack
Signal Ground
shows the RS–422 assignments for colored-wire pair (13-pair) cable.
Table C-5
Table C-5 RS
–422 Interface Signal Wiring for Alternate Wire Cable
Signal from Encompass
4 Re
ader
Alternate Wire Cable
Connect to
Sign
al from
Host
Pairing Color
RS
–422 Transmit positive
Pair 11
Black Receive (+)
RS
–422 Transmit negative Red Receive (–)
RS
–422 Receive positive
Pair 1
Black Transmit (+)
RS
–422 Receive negative Red Transmit (–)
shows the RS–422 assignments for alternate wire (15-pair) cable.
Optional for hardware handshaking
RTS — Encompass
4 Reader output
Pair 11
Black Pin 8 Pin 5
CTS — Encompass
4 Reader input
Red Pin 7 Pin 4
Table C-3 RS
–232 Interface Signal Wiring for Alternate Wire Cable (continued)