ES-R-2X01B-M Datasheet, PDF (9/20 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 Connector Pinout Information
This section shows the connector pinouts used on the ES-R-2001B-M and ES-R-2101B-M converters.
This allows the use of a straight-through cable between the host computer and the RS-232 port of the
ES-R-2x01B-M.
5.1 RS-232 Signal Pin-outs of DB-9 Female (DCE)
Pin Number Description
1
DCD = Data Carrier Detect
2
RXD = Receive Data
3
TXD = Transmit Data
4
DTR = Data Terminal Ready
5
GND = RS232 signal ground
6
DSR = Data Set Ready
7
RTS = Request To Send
8
CTS = Clear To Send
9
No Connect
Table 4
RS-232 Pin-Out for DB-9 connector (DCE)
5.2 RS-232 Signal Pin-outs of DB-9 Female (DTE)
Pin Number Description
1
DCD = Data Carrier Detect
2
TXD = Transmit Data
3
RXD = Receive Data
4
DSR = Data Set Ready
5
GND = RS232 signal ground
6
DTR = Data Terminal Ready
7
CTS = Clear To Send
8
RTS = Request To Send
9
No Connect
Table 5
RS-232 Pin-Out for DB-9 connector (DTE)
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