ES-R-2001-M EasySync, ES-R-2001-M Datasheet - Page 6

• 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
2.1
2.1.1 Communications Mode
Switch SW selects the communications mode.
S1
ON
ON
OFF
OFF
Table 2.1 – Communications Mode Selection Switch
2.1.2 Internal Jumpers
There are four sets of internal jumpers within the ES-R-2x01-M that can be accessed by removing the
two screws from the side of the unit and removing the top cover. The following figure shows the location
of the internal jumpers JP1, JP2, JP5 and JP6.
Figure 2.1 – ES-R-2x01-M Jumper Layout
DC IN
Installation
Hardware Installation
S2
ON
ON
OFF
OFF
5
S3
ON
OFF
ON
OFF
4
3
Function
RS422 Mode. Four-wire mode with transmitter always on.
RS485 Full Duplex. Four-wire mode with automatic TX enable
RS485 Half Duplex with echo back. Two-wire mode.
RS485 Half Duplex (no echo). Two-wire mode.
2
13
1
JP1
1
14
2
1
3
JP2
©2009 EasySync Ltd.
ES-R-2x01-M RS232 to RS422 / RS485 Converter User Guide
6
2
JP6
1
5
6
2
JP5
5
1
Document Reference No.: ES_000011
Clearance No.: ES#*
Version draft
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