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Installation Manual
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
2
4
3
5
7
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To select this interface type, follow the instructions in sections 2.3 and 2.4.
Name
TX485+
TX485-
RX485+
RX485-
SGND
2
TX485+
4
TX485-
3
RX485+
5
RX485-
7
SGND
Figure 2.17 - RS485-nonpolled connections
®
LazerData
Function
RS485 output (+)
RS485 output (-)
RS485 input (+)
RS485 input (-)
Signal Ground
USER INTERFACE
RX485
TX485
SGND
Installation - 2.15
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