ASM Technologies Limited
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  Network & Telecom


System Design Capabilities
  • Conceived, Developed and Deployed Telecom Systems for the Indian / Asian / African Markets.
  • Have successfully got 8 Type Approvals for Telecom Systems from Telecom Engineering Centre (TEC), Govt. of India.

  • Licensed Technology for over 10 Large Telecom Companies for bulk Production and deployment.

  • Embedded Software is an Integral part of the Telecom Systems Developed.

  • Extensively worked on Micro-controller 8031, Conexant 8973.
Technical Skills
  • Developing software around protocols like of V5.X, TCP/IP, SS7, SNMP, X.25, ISDN.
  • Development using Standards like GSM, DECT, IS-95, IS-136, IEEE 802.11, WAP and Bluetooth.

  • Programming in Micro controller, Microprocessor, DSP Assembly Language, C, C++, VC++, X Motif and Socket Programming.
DSP Capabilities
  • Assembler, simulator and 'C' tools on PC
    • In circuit emulator for ADSP - 2181

  • Developing G-728 AND G-729 Vocoder for pair gain and video conferencing applications.
    • G-728 (LD - CELP) on ADSP 2181DSP
    • G-729 (A - CELP) on ADSP 2182DSP

  • DSP development environment

  • Developed V-34 MODEM
    • Max data rate -> 28.8 KBPS
    • Operation from 2400Bps In steps of 2400Bps
    • Adapts bit rate to varying line conditions
    • Full duplex operation
    • 9bits/symbol
    • Trellis coding and viterbi decoding
    • Decision feedback equalizer
    • Reduced ISI using tom linson-harishma structure of implementation
SOME SPECIFIC DEVELOPMENT OF TELECOM SYSTEM / SUBSYSTEMS WITH EXTENSIVE COMPILATION OF EMBEDDED SOFTWARE CODES
  • Shared Radio (MARR - Mobile Access Rural Radio)

  • High Speed Wiring Analyzer / Back Panel Tester

  • HDSL

  • Pair Gain System

  • Digital Loop Carrier Systems

  • Digital Line Concentrator

  • Paging Transmitter / Repeaters

  • Analog and Digital Telemetry

  • Point of Sale (POS) Terminals

  • Vibration Simulator for aircrafts

  • ILS Simulator for Aircrafts
Telecom Products

Telecom Products designed, developed and deployed by ASMTL include

  • Electronic Keyboard Concentrator (EKBC)

  • EKBC / EKB Modem (For PSTN)

  • Electronic Keyboard (EKB)

  • Multipurpose Formatted Terminals for Telegraph Network

  Electronic Keyboard Concentrator (EKBC)
  • PC based Bilingual EKBC
    • Hindi
    • English
  • Message Switch

    Electronic Keyboard Concentrator


  Product Features

  • It can handle upto 16 Lines.
    These can be either
    --------------- The omnibus line
    --------------- The teleprinter line
    --------------- The RS 232 c line.
  • Upto 8 EKBs can be connected on a single omnibus line.
  • An advanced Protocol System ensures error free communication between the EKBC and the EKB.
  • Communication can be in Hindi and English between the EKBC and the EKB.
  • Can be connected to an existing SFMSS using the SFT-141 protocol.
  • Two EKBCs can be connected using a TP or a RS 232 c link.
  • In-built operator utilities helps you to retrieve messages sent earlier or to retransmit the same. Also error messages can be edited.
  • Messages are sent or received in the ISTF format, ensuring compatibility with existing DOT message switches.
 


   EKBC / EKB Modem (for PSTN)

  • Use Telephone line for digital data transfer
  • Convert digital data to Analog for transmission through PSTN
  • Design, Development & Execution by our team

  EKBC / EKB Modem (for PSTN)


  Specifications

  • Full Duplex operation with max speed of 300 Baud / second
  • V.21 Standard Modulation technique: FSK
  • Operational Frequency:
    Transmit : 980 Hz and 1180 Hz
    Receive : 1650 Hz and 1850 Hz
  • EKBC Modem Card contains two independent channels in single Euro card to be fitted in the Line Interface Unit (replacing any one of Line Cards without modification).
  • EKB Modem is fitted inside the EKB Equipment with two pin terminal block fitted at the back panel for access to telephone line.
  • Either EKBC/EKB can dialup the other end by telephone call and circuit may be put into/out of data transmission and reception mode by mutual consent through simple changeover switches.

 

 


  Electronic KeyBoard (EKB)

  • Microprocessor based
  • Store & Forward Message terminal
  • Transmit & Receive message in ISTF format
  • TP like Keyboard with 40 Char 1 line Dot Matrix LCD

  Electronic KeyBoard

 

 

 
  Product Features

  • The EKB is compact, rugged and modular in design
  • User friendly telex type keyboard ensures ease of operator training.
  • The EKB can send and receive messages in Hindi and English
  • A Ni_Cd protected memory ensures no loss of messages.
  • Operating speed can be varied from 12.5 to 300 Baud.
  • Messages entered into the EKB are automatically converted to the ISTF format.
  • Messages can be edited (for to be sent messages only), viewed, copied and printed as per the requirement.
  • 8 EKBs can be connected on a single Omnibus line with a maximum line length of 100 Kms.
  • Built-in UPS facility enables operation even during power failures.
  • The EKB can function in a non air-conditioned environment with temperatures upped 55 degree Celsius and humidity of 95%.
  • Low power consumption.
 


   Multipurpose Formatted Terminals for Telegraph
   Network

  • OEM – Design, Manufacture & Maintenance
  • Windows based Formatted terminal for PSTN
  • Installed in Shimla

 


  Product Features

  • PC based Store & Forward Message Terminal
  • User Friendly
  • Operating Speed
    • 50 to 300 on Point to Point
    • 300 Max of 56 kbps on RS232C
  • Compulsory storage of all messages
  • Online & Offline Message Preparation
  • Auto ISTF format for Error free creation & transmission of messages
  • Possible to work through Internet

 





 
 
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