User guide

Table Of Contents
SET UP
UMTS GPRS EDGE router ref. RAS-3G User guide ref. 9020009-01 Page 73
21 Serial to IP gateway
That function is available in RAS-3G-1220 or RAS-3G-1230
The RAS-3G features two serial asynchronous ports RS232 or RS485 (see the product identification
table).
A serial gateway can be assigned to each port .
If the same type of gateway is assigned to both serial ports, the UDP or TCP port numbers must be
different.
The gateways listed below are provided :
Modbus client or server (i.e. master or slave)
To connect several serial modbus slaves to several IP modbus clients.
Or to connect a serial modbus master to an IP modbus server.
RAW TCP server or client :
To connect 2 serial devices through an IP network.
RAW UDP :
To exchange serial data between several serial and IP devices, through an IP network, using a table
of IP addresses.
Telnet :
To connect a Telnet terminal to the RAS.
Unitelway slave :
To connect a serial unitelway master to an IP network.