DESCRIPTION
17
Circuit example of the equipment with a router with data length more than 10 m:
At RS485 data cable more than 10m it is need to use overvoltage protection
on the router side!
2.8.4.3.
Expansion port RS422
Pin
No.
Signal
name
Description
Data flow
direction
1
SGND
Signal and power supply ground
2
SGND
Signal and power supply ground
3
RxD-
Receive Data (-)
Output
4
RxD+
Receive Data (+)
Output
5
TxD-
Transmit Data (-)
Input
6
TxD+
Transmit Data (+)
Input
7
+12V EXT External power supply
8
+12V EXT External power supply
ATTENTION! Power supply is selected on the expansion port RS422 by help
of a jumper, 2.9. If galvanic separation is required the converter must have an external
power supply.
LUCOM GmbH * Ansbacher Str. 2a * 90513 Zirndorf * Tel. 09127/59 460-10 * Fax. 09127/59 460-20 * www.lucom.de
