Introduction to the SINAUT ST7 system
2.5 Mobile wireless components
SINAUT ST7 Station control system - System Manual
64
System Manual, 05/2007, C79000-G8976-C178-06
MD4
Construction
•
Module format
•
Dimensions (W x H x D) in mm
•
Weight
•
Compact module for S7-300, double width
•
80 x 125 x 120
•
Approx. 300 g
Degree of protection
IP 20
Transmission path
•
Digital ISDN network
•
ISDN dedicated line, for example the ISDN
dedicated line products of the German
Telekom:
– LeasedLink SFV Digital 64S
– LeasedLink SFV Digital 64S2
– LeasedLink SFV Digital TS02
Available standard transmission standards
•
V.110 1200 bps, duplex
•
V.110 2400 bps, duplex
•
V.110 9600 bps, duplex
•
V.110 19,200 bps, duplex
•
X.75 1200 bps, duplex
•
X.75 2400 bps, duplex
•
X.75 19200 bps, duplex
•
X.75 38,400 bps, duplex
Modem control
•
AT commands
•
V.25bis commands
Asynchronous character format
10 or 11 bits
Certifications and approvals
Europe
Compatible with SINAUT modems
•
LGM64K
•
V.110 9600 bps, duplex
2.5
Mobile wireless components
Wherever no other transmission medium such as a dedicated line or telephone network is
available and where the setting up of a separate wireless network would involve high cost,
data transmission using a GSM network is a practical alternative.
This is, of course, possible only when there is an adequately strong GSM signal at the
relevant location. The latest SINAUT quadband mobile wireless modem makes operation in
the GSM networks available worldwide(850, 900, 1800 and 1900 MHz range).
SINAUT ST7 provides two options for data transmission over GSM mobile wireless:
1. With the GSM modem MD720-3
Data transmission on demand by establishing a dial-up connection over a mobile wireless
network (CSD: Circuit Switched Data). The sending of SMS messages to standby
personnel is also possible here.
The duration of the dial-up connections or the number of SMS messages sent is charged.
2. With the GPRS modem MD740-1
Permanent online connection between station and control center using the GPRS service
(General Packet Radio Service) of a GSM provider. Data can be transmitted immediately
at any time.
Despite being permanently online, only the amount of transmitted data is charged.