Installing And Putting A Sinaut Modem Into Operation; Introduction; Gsm Modem Md720-3 - Siemens SIMATIC NET SINAUT ST7 System Manual

Installing and putting a SINAUT modem into
operation
6.1

Introduction

Introduction
The following modem variants are available in the SINAUT ST7 range.
MD720-3 GSM wireless modem
MD740-1 GPRS modem
MD2
MD3
MD4
6.2

GSM modem MD720-3

Introduction
This section describes the design of the MD720-3 modem, its connectors and display
elements.
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
for data transmission over the GSM mobile wireless network by establishing a
dial-up connection (CSD, Circuit Switched Data),
max. 9600 bps
for data transmission using the GPRS service (General Packet Radio Service)
of a mobile wireless provider,
secure connection with integrated VPN router and firewall,
max. 54 Kbps
Dedicated line modem
for multipoint connection, can be tapped.
Can also be used as a repeater,
max 19,200 bps
Modem for the analog telephone network,
max. 33,600 bps.
Can also be used a dedicated line modem for a point to-point connection,
max. 33,600 bps in voice band
Modem for the digital ISDN network
max. 64,000 bps
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