Modem Md720; Description - Siemens SIMATIC NET System Manual

4.7.6

Modem MD720

4.7.6.1

Description

Figure 4-50
The GSM/GPRS modem MD720 is used for the remote control system SINAUT ST7 for data
transmission via a dial-up connection (CSD service) and for a remote control system based
on TeleControl Server Basic for data transmission via GPRS. It is used to set up systems for
monitoring and controlling simple telecontrol stations. This device also allows energy-saving
concepts in systems and the connection of mobile nodes with central monitoring/control of
rail-guided vehicles, special vehicles, local public transport, complex machines, and shipping
in inland waters and coastal areas.
The GSM/GPRS modem MD720 consists of a rugged plastic housing and is designed for
mounting on a DIN rail and for wall mounting. The device is equipped with an RS-232
interface, diagnostics LEDs for the modem status, the field strength and connection control,
an SMA antenna connector for the GSM/EGPRS antenna and a SET service button. The 4-
pin terminal strip is for connection to the 24 VDC power supply.
Industrial Ethernet
System Manual, 09/2019, C79000-G8976-C242-10
Modem MD720
SCALANCE network components
4.7 SCALANCE M industry router
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