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Quasar-8 - multichannel digital E1 card for Asterisk

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


Quasar is an 8 (4) ports E1 interface card, developed for use in PCI/PCIe/PMC 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-40 db for port 0, -6 db for port 1
Conformance to standardsITU-T G.703, G.704, G.706, G.732, G.823
E1 multiframeCRC4, CAS
Dimensions130 x 120 x 20 mm
Bus interface

PCI 32 bits, 33 Mhz, PCI master capable


PCIe 1x

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

Order codes

Quasar-8PMC8 E1 ports, PMC
Quasar-4PMC4 E1 ports, PMC
Quasar-8PCI8 E1 ports, PCI
Quasar-4PCI4 E1 ports, PCI
Quasar-8PCX8 E1 ports, PCI express
Quasar-4PCX4 E1 ports, PCI express
Quasar-8PCX-EC8 E1 ports, PCI express, echo canceller
Quasar-4PCX-EC4 E1 ports, PCI express, echo canceller
Quasar-8PCI-EC8 E1 ports, PCI, echo canceller
Quasar-4PCI-EC4 E1 ports, PCI, echo canceller


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