User Manual

Installation Instructions ID ISC.LRM200-A/B
FEIG ELECTRONIC GmbH Page 17 of 20
5. Startup
5.1. Interface configuration using jumpers
Jumpers J400 – J401 are used to configure the asynchronous interface for RS232 or RS485.
Jumper RS232 RS485
400 1 - 2 2 - 3
401 1 - 2 2 - 3
Jumpers J403, J405 and J407 can be used to insert the termination resistors which may be re-
quired for the RS485 interface.
Jumper In Out
405 Pull-Up on RS485 - B
No Pull-Up on RS485 - B
407 Pull-Down on RS485 - A
No Pull-Down on RS485 - A
403 Termination resistor
RS485 - A ⇔ RS485 - B
No termination resistor
RS485 - A ⇔ RS485 - B
Note:
It is not possible to operate both RS232 and RS485 at the same time.
J405
J403
J407
RS485 - B+
RS485 - A-
Jumpers for RS485 interface