SA-ACU-SR User
Manual
S-Access GmbH
Tel: +41 44 700 31 11
Oberhausenstrasse 47
Page
14
of
16
Fax: +41 44 700 31 03
8907 Wettswil a/A
Email:
Switzerland WEB:
www.s-access.ch
5.1.2 RS485
interface
Connector type
SubD9 female
Data rate
9600 bauds, asynchronous mode
Protocol
8 bits, parity,
1 stop-bit
Description of pins
Pin
Signal
Description
1, 5
GND
Protective ground
2, 3, 4
NC
Not used
6
RS485 input (positive)
7
RX_485-
RS485 input (negative)
8
RS485 output (positive)
9
TX_485-
RS485 output (negative)
