Countersurveillance technologies
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SEL DTR NET - 4 - IP audio&call logging device

External IP network modules SEL DTR NET are designed to capture the information from analogue telephone lines, differential (radios) and linear (microphone) inputs and transmit it over TCP/IP to remote computer where SELENA software is installed. Four telephone lines can be connected to the SEL DTR NET-4 device.

Distinctive features:

  • Ethernet 100/1000 Mbit connection.
  • Network connection indicator.
  • Galvanic decoupling between the inputs.
  • Software-based switching between telephone and microphone inputs.
  • 6 alarm inputs to connect to external sensors.

Delivery set:

  • The SEL DTR NET - 4 device,
  • Software;
  • Power supply unit;
  • User manual.
Number of channels 4 mono (can be combined in 2 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/7/8
SELENA software size (32-bit) not more than 20 MB
RAM 512 MB for Windows2000/XP, 2 GB for Windows Vista/7/8
LAN TCP/IP Ethernet 100/1000 Mbps
Dimensions 40 x 135 x 190 mm
Weight 500 g