Siemens SINAUT ST7 - ANT794-4 MR GSM;GPRS Antenna; Technical Specifications of the SINAUT Mobile Wireless Components

Introduction to the SINAUT ST7 system
1.5 Mobile wireless components
Station control system
System Manual, 07/2009, C79000-G8976-C178-07
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1.5.4 ANT794-4MR GSM/GPRS antenna
The ANT794-4MR GSM/GPRS antenna
The quadband ANT794-4MR antenna is available for use in GSM/GPRS networks. To
improve the field strength, it can be installed inside and outside buildings.
Figure 1-13 ANT794-4MR GSM/GPRS antenna
Short name Order no. Explanation
ANT794-4MR 6NH9 860-1AA00 GSM/GPRS quadband antenna; weatherproof for
indoor and outdoor areas; 5 m connecting cable
connected permanently to the antenna; SMA
connector, including installation bracket, screws, wall
plugs
The antenna must be ordered separately.
1.5.5 Technical specifications of the SINAUT mobile wireless components
Technical specifications of the MD720-3 GSM modem
MD720-3
Transmission rate
• RS-232
• CSD in GSM network
• 300 bps to 57,600 bps
• 9,600 bps
Interfaces
• RS-232
• GSM antenna
• Connection to power supply
• 9-pin D-sub female connector
(with gender changer pin)
• SMA female connector,
nominal impedance: 50 ohms
• 4-pin screw terminal
Frequency ranges 850, 900, 1800, 1900 MHz