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Quasar-8PCX-LP - multichannel low profile E1 card for Asterisk

  • 8 E1 ports
  • Hardware echo cancellation
  • Embedded TDM switch
  • DMA mode
  • PCIe low profile card form factor
  • Linux driver (x86, x64)
  • Linux configuration utility
  • Works with any DAHDI-compatible PBX
    Asterisk (FreePBX), FreeSwitch, Yate


Quasar-8PCX-LP is an 8 ports low profile E1 interface card, developed for use in PCIe slots. The card provides simultaneous 256-voice channel processing and channel cross switching without CPU loading. The primary application is to attach the Asterisk software PBX to E1 channels.

Technical data

Connector typeRJ45, 8 contacts
Cable typesymmetrical twisted pair, 120 ohm
Nominal pulse voltage3 V +- 10%
Data transmission rate2048 kbit/s +- 50 ppm
CodingAMI or HDB3
Signal attenuation, no more than-6 db
Conformance to standardsITU-T G.703, G.704, G.706, G.732, G.823
E1 multiframeCRC4, CAS
Dimensions170 x 68 x 20 mm
Bus interface

PCIe 1x

Software support 
  • Configuration utility for Linux
  • DAHDI driver for Asterisk

Order codes

Quasar-8PCX-LP8 E1 ports, low profile
Quasar-8PCX-EC-LP8 E1 ports, echo canceller, low profile


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