Lucom ER 75i User Manual page 16

The router connection to equipment with full-value RS232 interface:
2.8.4.2.
Pin Signal
name
No.
1 SGND
2 SGND
3 TxRx-
4 TxRx+
5 TxRx-
6 TxRx+
7 +12V EXT External power supply
8 +12V EXT External power supply
ATTENTION! Power supply is selected on the expansion port RS485 by help
of a jumper, 2.9. If galvanic separation is required the converter must have an external
power supply.
Circuit example of the equipment with a router with data length less than 10 m:
16
LUCOM GmbH * Ansbacher Str. 2a * 90513 Zirndorf * Tel. 09127/59 460-10 * Fax. 09127/59 460-20 * www.lucom.de
Cable KD-2
ETH
PORT1
PWR
Expansion port RS485
Description
Signal and power supply ground
Signal and power supply ground
RS485 B (-)
RS485 A (+)
RS485 B (-)
RS485 A (+)
DESCRIPTION
Router
Data flow
direction
Input/Output
Input/Output
Input/Output
Input/Output