Expansion port mounting – VEGA LUCOM EDGE router ER75i v2 SL USER’S GUIDE User Manual
Page 15
EXPANSION PORT MOUNTING
15
2.8.5.
Connection of the Port1 Connector – RS422
Pin
number
Signal
mark
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.
Circuit example of the equipment with router with data cable length less than 10 m:
Circuit example of the equipment with a router with data cable length more than 10 m:
With a RS422 data cable more than 10m it is necessary to use overvoltage protection
on the router side!
LUCOM GmbH * Ansbacher Str. 2a * 90513 Zirndorf * Tel. 09127/59 460-10 * Fax. 09127/59 460-20 * www.lucom.de