EN537 Smart Encoder
Copyright © 2018 EEG Enterprises, Inc.
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All Rights Reserved.
RS-232 / RS-422 Connection Detail
Both Serial ports 1 and 2 use DB-9 connectors. Only serial port 1 supports RS-422 and RS-422 Sony. See the
following PIN assignments:
RS-232 Protocol
Pin
Master
EN537
1
2
Rx
Tx
3
Tx
Rx
4
5
Ground
Ground
6-9
RS-422
Pin
Master
EN537
1
Rx-
Tx-
2
Rx+
Tx+
3
Tx+
Rx+
4
Tx-
Rx-
5
Ground
Ground
6-9
RS-422 Sony
Pin
Master
EN537
1
2
Rx-
Tx-
3
Tx+
Rx+
4
5
Ground
Ground
6
7
Rx+
Tx+
8
Tx-
Rx-
9