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Wireline Communications Solutions

DATA & FAX MODEMS

V.34Fax  |  V.17 / V.29 / V.27ter  |  T.38

 

    V.34fax Facsimile Modulation Software

This is a data modem software library is an ITU compliant modulation, optimized for execution on RISC and DSP architectures from leading silicon suppliers. The software can be executed as a single threads under a variety of operating systems or it can be execute in multitask enviorment (as a kernel call)

The line interface may be an analog front end (codec and DAA) or a digital interface such as T1/E1, Switched 56, and ISDN. The upper end of this software offers a direct binary and HDLC interface.

As an option, this modulation can be combined with other relevant Group 3 facsimile modulations   (V.17, V.29, V.27ter and V.21 channel 2).

Features:

  • Fully compliant Group 3 Facsimile Support
  • Full and half duplex modes
  • Primary data channel supports 14 data rates in the range of 2400 bps to 33600 bps, in increments of 2400 bps
  • Control channel rates are 1200 and 2400 bps
  • Optimized for high performance on leading edge DSP architectures
  • Multi-tasking environment compatible

Configurations:

  • DAA interface with linear codec at standard sample rate
  • Direct interface to 8.0 kHz PCM data stream (A-law or u-law)
  • Available with T.30 and ECM/BFT
  • Available with Class 1 service command sets T.31 and EIA-578
  • Available with class 2 command set like T.32, EIA-592
  • System can be combined with other Group 3 facsimile modulations (V.17/V.29/V.27ter/V.21 channel 2)
  • Facsimile systems, modulations (V.34, V.17 et al.) and protocols (T.30), and speech coders available
  • Multiple modulation instances can be executed on a DSP / RISC

Metric for V.34 Digital Modem on ADSP-2189 (for 33Kbps and 8KHz sampling)

 MIPS  23
 DM  17KW
 PM  14KW

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    V.17/V.29/V.27ter Facsimile Modulation Software

The modem software libraries include a complete range of ITU compliant modulations, optimized for execution on DSP architectures from leading silicon suppliers. This software is modular and can be executed as a single task under a variety of operating systems or it can execute standalone with its own microkernel.

The line interface may be an analog front end (codec and DAA) or a digital interface such as T1/E1, Switched 56, and ISDN. The upper end of this software can provide a direct binary and HDLC interface.

Features:

  • Fully compliant Group 3 Facsimile
  • Supports full and half duplex modes
  • Main data channel has 14 data rates starting at 2400 bps in increments of 2400 bps
  • Multiple control channel rates
  • Optimized for DSP/RISC processors
  • Available in Multi-tasked environment

Configurations:

  • DAA interface with linear codec at standard sample rate
  • Direct interface to 8.0 kHz PCM data stream (A-law or u-law)
  • Available with T.30 and ECM/BFT
  • Available with Class 1 service command sets T.31 and EIA-578
  • Available with class 2 command set like T.32, EIA-592
  • System can be combined with other Group 3 facsimile modulations (V.17/V.29/V.27ter/V.21 channel 2)
  • Facsimile systems, modulations (V.34, V.17 et al.) and protocols (T.30), and speech coders available
  • Multiple modulation instances can be executed on DSP/RISC

Metric for V.17 Digital Modem on ADSP-2189 (V.17Fax using a 7.2KHz codec)

 MIPS  4.8
 DM  4KW
 PM  7KW

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    T.38 Real Time Group 3 Facsimile

T-38 a Real Time Group 3 Facsimile is interface for real time transmission of fax over various types of network in a VOP stack such as SIP, MGCP and H.323. This software module includes components for proprietary and industrial standard facsimile. The software is modular and is available on DSP and RISC processors.

Features:

  • Group 3 facsimile processing system supported
  • Supports TCP/IP and/or UDP/IP modes of data transmission
  • Configurable type/amount of redundant information for UDP/IP service
  • Available in Multi-tasked format

Configurations:

  • MGCP/SIP/H.32X system available for industry standard and proprietary Facsimile-over-network
  • Controls for interoperability at call control and facsimile level with facsimile capable H.323 terminals
  • Facsimile/Voice Distinction support available
  • Direct interface to 8.0 kHz PCM data stream (A-law or -law)
  • DAA interface with linear codec at 8.0 kHz sample rate
  • Group 3 Facsimile End Terminal operation with direct T.38 interface available
  • Supported with G.722, G.729A, G.726 and GSM
  • Data modem systems available through V.34fax/T.30
  • Multiple instances executed on DSP/RISC platforms

Availability:

  • Available on ADSP-2189, TMS320C54 and propriety DSP cores

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