Siemens SINAUT ST7 - The Classic SINAUT ST7 Modems; The Modem Variants

Introduction to the SINAUT ST7 system
1.4 The classic SINAUT ST7 modems
Station control system
32 System Manual, 07/2009, C79000-G8976-C178-07
1.4 The classic SINAUT ST7 modems
The SINAUT ST7 MD2, MD3 and MD4 modems are built into an S7-300 housing just like the
TIM modules.
Figure 1-7 SINAUT MD modem
1.4.1 The modem variants
The following modem variants are available:
MD2 Dedicated line modem
for multipoint connection, can be tapped,
can also be used as a repeater,
max 19,200 bps
MD3 Modem for the analog telephone network,
max. 33600 bps,
can also be used as dedicated line modem for a point-to-point link,
max. 33600 bps in voice band
MD4 Modem for the digital ISDN network,
max. 64,000 bps