ES-R-2001-M EasySync, ES-R-2001-M Datasheet - Page 7

• Manufacturer Part Number: ES-R-2001-M
• Description: Interface Modules & Development Tools RS232 to RS422/RS485 Serial Converter
• Manufacturer: EasySync

Specifications of ES-R-2001-M

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.1.3 RS422/RS485 Interface Configuration
The RS422/485 connector is a 9-way D-Type plug (DE-9P) that provides connection to up to four
differential signal pairs.
Table 2.2 – RS422/RS485 DE-9P Pin-Out
The screw terminal block provides access to the first five signals on the RS422/485 connector.
Table 2.3 – RS422/RS485 Screw Terminal Pin-Out
The internal Jumper JP1 provides seven possible link settings to set the function of the RS422/485
interface.
DE-9P Pin
Pin
1
2
3
4
5
6
7
8
9
1
2
3
4
5
RxD+
TxD-
TxD+
RxD-
RTS-
RTS+
CTS+
CTS-
GND
TxD+
RxD+
RxD-
TxD-
GND
Name
Name
©2009 EasySync Ltd.
ES-R-2x01-M RS232 to RS422 / RS485 Converter User Guide
(C)
(A)
(B)
(B)
(A)
(C)
(A)
(B)
(A)
(B)
(B)
(A)
(B)
(A)
Comments
Not used in two-wire mode
Not used in two-wire mode
Output. RS422 handshake
Output. RS422 handshake
Input. RS422 handshake
Input. RS422 handshake
Comments
Not used in two-wire mode
Not used in two-wire mode
Document Reference No.: ES_000011
Clearance No.: ES#*
Version draft
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