RD 8100 System

Modular interface system to permit real-time application of the ZX80/81. Connected by motherboard; 5 modules available.

The RD 8100 is a modular interface system capable of performing a wide variety of scientific tasks, when coupled with a Sinclair Computer (ZX 81 and Spectrum). Flexibility and compatability are built into the system, which is simple to program and operate. It is designed with the professional technologist in mind, but its low cost and extendability have made the RD 8100 equally popular in education, and with the home computer enthusiast.

Additional advantages of the system are its portability — it is lightweight, and can be used effectively when remote from a mains supply — and its facility to interface with a standard TV monitor, and the Sinclair Printer.

The RD 8100 has become an indispensable asset to many users engaged in highly diverse fields of research, development and automatic control.

Modules

• Digital Input/Output Port RD 8110
• Analogue Input Port RD 8130
• Analogue Multiplexer/Amplifier RD 8140
• Analogue Output Port RD 8150
• Realtime Clock RD 8170
• Light Pen Module RD 8180

The RD 8100 Motherboard is plugged directly into the rear of a Sinclair ZX 81. If required the Sinclair ZX Printer and RAMpack may be connected at the rear of the Motherboard. The modules are then fitted to the motherboard.

For use with a Sinclair ZX Spectrum, an RD 8105 Spectrum Adaptor must be inserted between the motherboard and the computer.