ISDN-Karten for 1, 2, 4 S0-Ports

1-/2-/4-way ISDN card for PCI or PCI-E slot; active except 1S0.

Multi-unit or system connections (S0/RJ45) with 2, 4 or 8 channels;
DSS1 (Euro-ISDN) or 1TR6 (ältere TK-Anlagen), PBX-QSIG.

Windows: CAPI 2.0+NDIS for all 32- and 64-bit versions from Windows XP (Workstation, Server);
Linux: für 32- und 64-Bit-Kernel ab 2.4.x geeignet.


  • Transparent/Language
  • Fax T.30 with extensions
  • X.75
  • V.110
  • u.a.

Additional services for voice: switching (ECT), three-party conference (3PTY), crossbar switching.

Please pay attention to the different designs when ordering, see figure: PCI-E cards (also called PCIe or PCI-Express) have a visibly shorter contact strip than PCI cards.

The 1S0 and 1S0E cards have half height and are supplied with a normal slot bracket. A low-profile slot plate can be supplied on request.

The 4S0 ISDN board can serve up to 4 S0 buses and thus 8 channels with CapiCall-Pro and/or CapiFax-Pro. Partial use is also possible, e.g. with only two S0 buses for a quadruple card. With the 2-/4-way cards, echo effects on switched calls are largely avoided by means of special crossbar logic in the hardware. – Installation note: The bus or controller with the number 1 is the one on the motherboard side. 

Primux ISDN Tips

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