16-Channel Analog Trunk Board

The 16-channel analog trunk voice processing board adopts the DSP to process voice data, which is composed of a main board and modules. The main board has 16 analog trunk channels. You can insert various modules for the applications in various scales and functions. The inserted module types could be M2T, M2U, MTU, high-impedance logging, Magneto, E/M control, 2-pin voice, and 4-pin voice. On a main board, the modules of various functions and amounts could be inserted under the DBKD SDK. DONJIN voice boards of various functions and amounts could be used in the one device to perform the functions of trunk lines, extensions, voice playing, voice recording, conference, FSK data receiving/sending, text to speech (TTS), and so on. Under the DBKD SDK, the board has the functions of port voltage detection and CRBT detection.

    l  One board could process a maximum of 16 calls simultaneously; various modules could provide various functions;

    l  A maximum of 16 boards could be inserted in a standalone device, which provides 256 analog channels;

    l  Each module provides 2 channels (2 calls), and each channel could perform the following functions based on the type:

     ? Trunk module: on/off hook, calling in/out, voice recording/playing, DTMF receiving/sending, analog tone detection, and polarity inversion signal detection;

     ? User channel: extension hook-on/off detection, feeding/ringing power, voice recording/playing, DTMF receiving/sending, and sending caller number to an extension phone;

     ? Trunk/User module: provide one trunk channel and one user channel to perform all the functions of trunk channels and user channels, also provide direct power connection during power failure;

     ? Recording module: voltage control, voice control, recording and special channel monitoring;

     ? Others: E/M control module, 2-pin voice module, and 4-pin voice module, providing corresponding functions;

    l  By the CT-BUS, it could connect to DONJIN voice boards of other types to construct the applications in various scales;

    l  Calling in/out: simultaneous and automatic calling in/out, accurate inbound call detection and call analysis;

    l  Caller identity detection (CID): Support two CID modes of DTMF and FSK;

    l  Support digital voice recording/playing in various formats;

    l  Accurate DTMF sending/receiving and adjustable sensitivity are adapted to various lines or terminals;

    l  Provide to send/receive data in a standard FSK format;

    l  When the DBDK SDK is used, it can provide exact port voltage value for the application;

    l  When the DBDK SDK is used, it can detect the CRBT with an accurate rate over 90%, which improves the calling success rate efficiently;

    l  Built-In conference resource: when the DBDK SDK is used, the conference resource is built in for multiple-party calls;

    l  When the NADK SDK is used, the board is compatible with all voice formats of Dialogic boards, and provides the API programming interfaces compatible with the SR5.1.1;

    l  The board with the JCT function supports the continuous speech processing (CSP) function, voice interrupt, and echo cancellation.


    Computer Bus


    Telecom   Interface


    Enhanced   Function




    RJ45 Note


    M2T, M2U, M2R, MTU, MCS, MEM, M2VOC, M4VOC, C14


    RJ45 Note


    M2T, M2U, M2R, MTU, MCS, MEM, M2VOC, M4VOC, C14






    M2T, M2U, M2R, MTU, MCS, MEM,   M2VOC, M4VOC, RIO160R11, C12




    M2T, M2U, M2R, MTU, MCS, MEM, M2VOC, M4VOC, RIO160R11, C12

    Note: The lead wire standard is defined by DONJIN.

    l  Interface: loop trunk/user trunk/high impedance/others;

    l  Interface impedance: 3-element complex impedance (loop trunk/user trunk), more than 20 k (high-impedance logging module);

    l  Frequency response: 300 Hz–3400 Hz;

    l  Computer type: Pentium or later, PCI/Compact PCI bus;

    l  Digital voice: a-law/linear PCM, AMI ADPCM (.VOX);

    l  Sampling frequency: 6 k (NADK)/8 k;

    l  Data transmission rate: 64 kbps, 32 kbps, 24 kbps (NADK);

    l  Volume adjustment: -30 db – +30 db;

    l  DTMF tone sending: 0-9, *, #, A, B, C, D;

    l  DTMF tone receiving: 0-9, *, #, A, B, C, D;

    l  Timeslot exchange: standard H.100/H.110 interface, 4096-channel exchange capacity;

    l  Dialing monitoring: signal tone/polarity inversion;

    l  FSK modulation: binary frequency-shift keying (BFSK):

                  Logic 1: 1200 Hz ± 1%

                  Logic 0: 2200 Hz ± 1%

    l  Data transmission mode: binary asynchronous serial mode;

    l  Computer bus: PCI/CPCI;

    l  Resource bus: The PCI interface board confirms to the CT-BUS H.100 standard:

     ? The PCI interface board confirms to the CT-BUS H.100;

     ? The CPCI interface board confirms to the CT-BUS H.110.

    l  Enterprise and community call center system

    l  Call marketing and dunning

    l   E-Government voice system

    l  IVR of each industry

    l  Telephone exchange of small and medium-sized enterprises

    l  Telephone conferencing of small and medium-sized enterprises

    l  Automatic alarming on a security system



    DONJIN analog trunk voice board in a small-sized call center

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