User`s guide

DESCRIPTION
16
The router connection to equipment with full-value RS232 interface:
2.8.4.2. Expansion port RS485
Pin
No.
Signal
name
Description
Data flow
direction
1 SGND Signal and power supply ground
2 SGND Signal and power supply ground
3 TxRx- RS485 B (-) Input/Output
4 TxRx+ RS485 A (+) Input/Output
5 TxRx- RS485 B (-) Input/Output
6 TxRx+ RS485 A (+) Input/Output
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:
Router
ETH
PORT1
PWR
Cable KD-2
LUCOM GmbH * Ansbacher Str. 2a * 90513 Zirndorf * Tel. 09127/59 460-10 * Fax. 09127/59 460-20 * www.lucom.de