Parabel Quasar MEX E1, 1port PCI Express

Quasar-mini is a one-channel E1 interface card developed for use in PCIe  slots. Its primary functions are to attach the Asterisk software PBX to E1 channels, to transfer data over E1 trunks, and to analyse E1 frames. 
Technical dataE1 attenuation 0..-40 db (port 0), 0..-6 db (port 1)
Coding AMI or HDB3
E1 line clocking Master or slave
E1 multiframe CRC4, CAS
Switching Embedded TDM switch 64x64 slots
Bus interface PCIe x1
Software support Configuration utility for Linux
Zaptel (dahdi) driver for Asterisk