Annual Report 2011-2012

Annual Research Report 2011-2012
• Facility of error recognition coding and correction coding by channel coding and
block interleaving.
• Automatic operation of transmitter by entering of data(DOX)
• Asynchronous interfacing port RS-232 with tunable bit rate in the range of 0.3-
38.4 Kbps
• Correspond to ETS 300-113 standard.
• Possessed half-duplex operation mode.
Technical specifications:
• Half-Duplex operation in radio link
• GMSK baseband modulation
• 9.6kbps of radio link’s bit rate at 12.5kHz bandwidth
• Up to 38.4kbps of DTE link via RS-232 port in asynchronous
• Equipped with channel coding and block interleaving
• Repeater operation
• Adjustable via DTE connection port
Note that other specifications of final product is equal with SEM-400 Modem.
Application / Performance / Use:
1. Data transfer between the points which are distributed on all around the town as:
• Power network dispatching system (Distribution, Sub-transmission)
• Automatic Meter Reading (Electricity, Water, Gas)
• Data transfer between bank’s branches and travel agencies
2. Data transfer between points in which communication cables aren’t easy to
access, or use of them is very expensive
3. Data transfer at mobile situation
4. SCADA Telemetry Systems : Electricity, Gas and oil field and pipelines, Chemical,
Agriculture, Water and waste-water management utility, Railways, Mining,
Industry, Telecommunications, Country councils, where network status, system
control, data collection and Fault conditions are required to be known and
controlled or corrective action are required to be taken.
5. Data Acquisition and control : This Modem can interface with any standard Data
Logger, RTUs (Point to point or Multipoint), PLC (For Factory Automation),
computer; i.e. any RS232 device virtually.
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