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 4/8LV Voice board                                                                                                                               
4- and 8-Port DSP-based Analog Interface Voice Board                                                        
Features
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  • Four/eight independent voice processing ports supporting low-to medium-density voice systems in a single PC
  • Two extra audio jacks allow voice monitoring and auxiliary audio input
  • ?law voice coding with selectable data rates 32 Kb/s or 64 Kb/s on a channel-by-channel basis
  • Configure multiple boards in a single PC for easy and cost-effective system expansion, capable of scaling from 4 to 80 ports
  • Caller ID detection, supports both FSK as well as DTMF
  • Full duplex voice channels for VoIP applications
  • Bundled with TAPI and wave drivers for Windows 2000 and Windows XP
  • Optional CT32 voice and fax development kit for Windows 2000 and Windows XP
  • Support LC Drop/Polarity Reversal detection
  • Detailed call progress monitoring & analysis
Applications

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  • Interactive Voice Response (IVR)
  • Automatic Call Distribution (ACD)
  • Unified Messaging System (UMS)
  • Unified Communication (UC)
  • TAPI-compliant applications
Technical Description

Configuration

The Talk Voice 4/8LV provides four/eight telephone line interface circuits for direct connection to analog loop start lines. Multiple Talk Voice boards can be installed in a single PC chassis enabling port expansion up to 80 ports per system.

Network Interface

The Talk Voice 4/8LV supports powerful call progress analysis, provides parameters programmable for country-specific regulation ,enhanced DTMF detection & cut-through, and PABX-specific tones detection. Quality voice recording in ADPCM, PCM or WAV formats.

Open Architecture

The Talk Voice 4/8LV boards share a common driver architecture with other Talk Voice boards, offering users and developers both, maximum flexibility and scalability. All Talk Voice products support standard TAPI and wave drivers for Windows 2000 and Windows XP. A CT32 voice and fax development kit is provided for application developers.

 
Technical Specifications

General
  • Number of ports: 8 (8LV)
  • Number of ports: 4 (4LV)
  • Max. boards per system: 10
  • Digital signal processor: TI TMS 320VC5402 @100 MIPS

Host Interface

  • Electrical: Rev. 2.1 of PCI bus specification
  • Bus speed: 33 MHz maximum
  • Shared memory: 256 KB dual port static memory
  • Address and interrupts configured automatically by PnP BIOS or PnP OS
  • Board ID: Rotary switch to uniquely identify each board

Telephone Interface

  • Line interface: Loop-start
  • Connectors: Four RJ-14 jacks
  • Return loss: 20 dB min (300 to 3300 Hz at 600 Ohms impedance)
  • Caller ID: International Caller ID capability via on-hook audio path

Audio Signal and Interface

  • Audio I/O jacks: 3.5mm audio in & out jacks
  • Automatic gain control (AGC)
  • Silence detection: programmable (nominal: -44 dBm)
  • Call progress monitoring: standard and custom frequency based

Audio Encoding

  • Sample rate: 8KHz
  • 32 Kbps OKI ADPCM
  • 64 Kbps ?law PCM
  • 64 Kbps windows 8-bit PCM

DTMF Tone Detection

  • DTMF digits: 0 to 9, *, #, A, B, C & D
  • Dynamic range: -36 dBm to -3 dBm per tone
  • Tone duration: 40 ms (minimum)
  • Acceptable twist: 10 dB

Tone Dialing

  • DTMF digits: 0 to 9, *, #, A, B, C & D
  • Transmit level: normal at -6.0dBm (high), -8.0dBm (low), parameters programmable
  • Frequency variation: < 1%

Bundling Drivers and Software

  • Bundled with TAPI and wave drivers for Windows 2000 and Windows XP
  • Optional CT32 voice and fax development kit for Windows 2000 and Windows XP

Software Compatibility

  • Microsoft TAPI and wave driver compliant applications
  • 3rd-party applications based on CT32 voice and fax development kit

Power Requirements

  • +5V @1.0A
  • +12V @200mA
  • -12V @200mA

Size

  • 312mm (L) x 107mm (H); 12.283" (L) x 4.2" (H)

Certification

  • Telephone network: FCC Part 68
  • EMI: FCC Part 15, Class B
  • BSMI / TAIWAN
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Environment

  • Operating temperature: 0o to 50o C (32o to 122o F)
  • Storage temperature: -20o to 65o C (4o to 149o F)
  • Humidity: 10 to 80%, non-cond