ES-R-2X01B-M Datasheet, PDF (12/20 Pages) List of Unclassifed Manufacturers – Converters Manual

ES-R-2x01B-M
Document Reference No.: ES_000086
RS-232 to RS-422/RS-485 Converters Manual
Version 1.0
Clearance No.: ES#42
5.4 RS-485 Signal Pin-out (half duplex)
DB-9 Male connector
The table below shows the RS-485 (half duplex) pinout of the DB-9 male connector.
Pin Number Description
1
Data– = Transmit / Receive Data, negative polarity
2
Data+ = Transmit / Receive Data, positive polarity
5
GND = Signal ground
Note: Other pins have no function in this mode and should be left unconnected.
Table 8
RS-485 half-duplex pin-out for DB-9 connector
5-way Terminal Block
The table below shows the RS-485 (half duplex) pinout of the 5 way terminal block.
Pin Number Description
1
Data– = Transmit / Receive Data, negative polarity
2
Data+ = Transmit / Receive Data, positive polarity
5
GND = Signal ground
Note: Other terminals have no function in this mode and should be left unconnected.
Table 9
RS-485 half-duplex pin-out for 5-way terminal block
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