PSC LazerData 12000 Series, Installation Manual

Page: 32 / 58

Installation Manual LazerData
®
12000 Scanner
Installation - 2.15
RS485-nonpolled interface
The RS485-nonpolled interface is a Full Duplex interface.
The nonpolled configuration is used for point-to-point connections (over longer
distances than those acceptable for RS232 communications) or in electrically noisy
environments.
The following 25-pin connector pins are used for RS485-nonpolled communications:
Pin Name Function
2 TX485+ RS485 output (+)
4 TX485- RS485 output (-)
3 RX485+ RS485 input (+)
5 RX485- RS485 input (-)
7 SGND Signal Ground
12000 Scanner
USER INTERFACE
7
SGND
TX485+
2
TX485-
4
RX485+
3
RX485- 5
RX485
TX485
SGND
Figure 2.17 - RS485-nonpolled connections
To select this interface type, follow the instructions in sections 2.3 and 2.4.