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Adapter Tau-PCI/E1

Discontinued, recommended replacement is: Tau-PCI/2E1


Internal short range modem/mux Tau-PCI/E1 Features:
  • ITU G.703, G.704, G.706 and G.823 compliant
  • Up to 1.5 km
  • CAS and CRC4 framing
  • Extra V.35/RS-530/RS-449/RS-232 data interfaces
  • Full duplex synchronous mode
  • Selectable data rates
  • Digital, remote and line loopbacks
  • Internal modem for PCI bus
  • Ready for IP-PBX Asterisk with Linux 2.4, 2.6;
  • Declaration of compliance D-MDPD-7910

LinuxAsteriskThe Tau-PCI/E1 is an adapter board for IBM PC and compatible computers with PCI bus. It includes two or four E1 interfaces operating at distances up to 1.5 km. The adapter architecture is similar to the E1-XL dual modem.

Currently available models are listed in Prices. Please, contact technical support if you are unsure which model to choose.

The Tau-PCI/E1 adapter can work in one of three configurations: A, C and D.

Configuration A: Dual E1 access unit. E1 Link 0 and E1 Link 1 operate independently and have identical data pathes to the PC memory. Data transfer rate is determined by the number of timeslots used.

Configuration C: Integrating multiplexer with two data channels and E1 sub-link. The timeslots of main link (E1 Link 0) are assigned to two data channels and E1 sub-link. Two data channels to/from PC memory are supported by HDLC Controllers 0 and 1. E1 sub-link (E1 Link 1) translates remaining timeslots to the remote node. This configuration allows to split the main link data between several chained Tau-PCI/E1 nodes (up to 15) with the distance between nodes of up to 1.5 km.

Configuration D: drop-insert multiplexer. The selected timeslots of E1 links are trasferred to/from the PC memory. The remaining timeslots are translated between the E1 links.


PC Bus Interface
Bus Type PCI, 33 MHz/32 bit
E1 Interfaces
Data Transfer Rate up to 1984 kbps (Nx64 kbps), Software selectable per channel
Line Code AMI or HDB3, Software selectable per channel
Line Impedance 120 Ohm (Twisted Pair) or 75 Ohm (Coax Cable), Jumpers selectable per channel
Receive Signal Attenuation Range from 0 to 12 dB or to 30 dB, software selectable (up to 1.5 km of 22 AWG twisted-pair cable)
Jitter Attenuator 128 bits depth, in the receive path
Frame Structure per G.704
Multiframes CRC4, CAS
Frequency Offsets Adjustment Controlled Frame Slip
Board Size Height: 100 mm, Width: 140 mm
Operating Systems and Protocols
Linux PPP, Cisco/HDLC, Frame Relay
FreeBSD 4.x, 5.x, 6.x
(FreeBSD 7.x is not supported)
PPP, Cisco/HDLC, Frame Relay


Некоторые документы хранятся в формате Adobe® Acrobat® Reader®

PDF  User's Manual (English / Russian) for Tau-PCI/E1
PDF  Driver Development Kit Manual in Russian
TXT  V.35 cable scheme
TXT  RS-232 cable scheme
PDF Справочник по интерфейсным кабелям Cronyx.

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