Modem and GSM modem

A modem connects to the RS232 port of a process station or management station, according to the topology and uptime requirements.  It is used for

  • alarm and event messaging to mobile phones
  • diaal-in service (RAS) at older sites.

We recommend using e.g TC35i or newer types by Siemens, other modems will be tested on demand. Standard Domat specification where always the latest proven solution of a well-known producer is supplied, is GSM.