SEL DTR - 2 - audio&call logging board

SEL DTR - 2 - audio&call logging board


2-channel logging board for recording from analogue linear inputs or telephone lines for installation into PCI slot of computer. Up to 6 boards can be installed on a normal PC.

2 telephone lines and 2 microphones can be connected to the board in the same time. The selection of the required signal source is made via software.



    • Distinctive features:

        • active and passive automatic number identification; 
        • complete electric isolation of the inputs;
        • parallel connection to lines;
        • possibility to connect two-wire microphones with phantom power supply from a board;
        • continuous adjustment of sensitivity for each channel;
        • possibility to combine two mono signals into a stereo signal;
        • soft&hardware MPEG-3 compression;
        • automatic analysis of telephone lines and signal levels;
        • autodiagnostics and functional self-test of the board;
        • soft&hardware forming of ANI request signal;
        • automatic detection of the ring signal;
      • autimatic detection and decoding of facsimile messages (when SEL FAX software module is installed).

      Delivery set: 

      • SEL DTR - 2 board, 
      • Software, 
      • User manual.



Number of channels 2 mono (can be combined in stereo)
Type of channels analogue telephone, differential, linear
Sampling rate 8, 16, 32 kHz, 16 bit sampling
Voice compression MPEG-3
Recording density per channel  
- without compression (at 8 kHz 16 bit) 57.6 MB per hour
- MPEG-3 up to 8.2 MB per hour
Input connector RJ45
Operation system Windows 2000/XP/Vista
RAM 256 MB for Windows2000/XP, 512 MB for Windows Vista
PCI bus PCI 32 bit, 33 MHz
Dimensions 20 x 105 (125) x 162 mm



Other Items of Interest: SEL DTR - 4 - audio&call logging board


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