Vintage AVM ISDN-Controller A1 Plus
Classic 16-Bit ISA Bus Networking Hardware — Boxed with Cable (c. 1990s)
Up for sale is a genuine piece of retro computing networking history: the original AVM ISDN-Controller A1 Plus. Manufactured by AVM in Germany, this passive 16-bit ISA plug-in board was a flagship standard for high-performance data and voice communication over two simultaneous B-channels. An excellent acquisition for collectors of vintage PC hardware, retro tech setups, or museum-grade telecommunication displays.
Product Specifications & Technical Data:
- Manufacturer: AVM GmbH (Germany)
- Model / Order Number (Bestell-Nr.): A1 Plus / 20001315
- Interface Bus: 16-Bit ISA (PC/AT/EISA)
- Network Interface: S0-interface for ISDN basic network access (1TR6 or E-DSS1 compatible)
- Data Transfer Rate: 2x64 Kbit/s + 1x16 Kbit/s
- Additional Features: Integrated X-interface for ISDN telephone connection, software-programmable configuration (no jumpers needed), SMD construction, low power consumption (<0.5W)
- Included Accessories: Original connection cable bundle and an extra sealed card sleeve pack
Condition Report:
Good vintage condition. The original cardboard retail box is structurally stable and features crisp technical labeling on the rear side and matching manufacturer specs on the edge panel. The internal hardware card is visually very clean with intact capacitors, red component blocks, and pristine gold contacts. The bundled connection cables are nicely wound. The secondary red-backed card remains sealed in its vintage plastic protective packaging. Untested due to lack of a legacy ISA test bench. Please check the photos for close-up cosmetic grading.
Combined Shipping & International Customs Notice:
- Combined Shipping Available: If you purchase multiple items from my store, I am happy to combine shipping to save you money! Please wait for a revised invoice before making your final payment.
- International Buyers — Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to buying.
