ISDN access device Gerdes PrimuX USB 2110

The Gerdes PrimuX USB 2110 is an ISDN access device that provides reliable digital connectivity for ISDN networks via USB. It supports dual-mode CAPI 1.1/2.0 and includes an integrated network CAPI with a configuration utility. The compact USB form factor allows easy installation on PCs and compatibility with Windows environments, and multiple PrimuX adapters can be combined in a single computer for expanded ISDN capacity.

Advantages

This ISDN adapter delivers low-latency speech communication (typ. 8 ms) and supports high-volume fax handling with more than 120 parallel fax transmissions/receptions on one PC. It implements a wide range of ISDN supplementary services (caller identification, call transfer, call completion, AOC, conference functions) and supports external protocols such as DSS1, 1TR6 and NI-2. The device includes fax features like Fax-Polling, MR/MMR compression, ECM, DTMF and progress tone detection, and can act as a fax service provider for Windows Fax.

Suitable for

• Small offices and home offices requiring ISDN connectivity via USB
• Environments that need reliable voice communication with low latency
• High-volume fax transmission and reception on a single PC
• Systems requiring multiple PrimuX adapters combined in one computer

Key specifications

• Product: Gerdes PrimuX USB 2110 (ISDN access device)
• Interfaces: USB connection; integrated network CAPI
• CAPI: Dual-mode CAPI 1.1 / 2.0
• Speech latency: typically 8 ms
• Fax capacity: 120+ parallel fax transmissions/receptions on one PC; Fax-Polling, MR/MMR compression, ECM, DTMF, progress tone detection
• ISDN supplementary services: CLIP, CLIR, COLP, COLR, KEY, MSN, DDI, SUB; call transfer (TP, CFU, CFB, CFNR); call completion (CW, HOLD, ECT); AOC; 3-party and complex conferences
• External protocols: DSS1, 1TR6, NI-2
• Other supported protocols: X.25, X.75, transparent, HDLC transparent, V.110, T.30, T.70 NL, T.90 NL, ISO 8208, LAPD
• NT modes: Each port selectable as NT or TE
• Supply voltage / power: 32 V, 2–4 W per channel (BRI only)
• Manufacturer codes: Brand Gerdes, MPN 2110, EAN 4032783211003

How to use

Install the Gerdes PrimuX USB 2110 by connecting it to an available USB port on the PC and run the included configuration utility to set up the integrated network CAPI and select NT/TE modes per port as required. Install any necessary drivers and configure the Windows Fax or other ISDN-enabled applications to use the PrimuX adapter. For multi-adapter setups, combine additional PrimuX devices on the same PC and configure each adapter through the utility to allocate channels and services.

Recommendations

Use a recent Windows version with the latest drivers supplied by Gerdes for optimal compatibility. For high-volume fax operations, ensure sufficient PC resources and network settings are adjusted to handle 120+ parallel sessions. When configuring voice services, enable echo cancellation and verify low-latency settings to maintain speech quality.