SIMATIC S7, TS Module RS-232 for SIMATIC Teleservice, connection to TS Adapter IE. Power supply via adapter SIMATIC S7, TS Module RS-232 for SIMATIC Teleservice, connection to TS Adapter IE. Power supply via adapter SIMATIC S7-1200 Basic Controller - flexible thanks to a wide range of communication options. If simple, inexpensive and secure teleservice and remote maintenance are required, a TeleService Adapter IE is recommended in conjunction with a TS module for connection to the analog, ISDN or GSM/GPRS network or with an RS232 interface for communication via an external modem. In such a configuration, remote maintenance via the telephone network, sending emails and Internet access are possible.