Expansion Systems (i)
Backplane expansion
Features
Original Price
USP
by U-Microelectronics
A modular expansion system designed for high-reliability backplane connection. [1]
Planned Expansion Boards:
2K RAM Board, Disc Interface Board, Bar Code Reader Board, Full 80 Column Video Interface, Digital/Analogue Board, Full Colour High Resolution Graphics Board, Centronics/RS232 Interface.
- USP-ADAP
Back-to-back adaptor required for first card and backplane. [1] - USP-BBP3 / BPE4
3-slot buffered backplane (BBP3) and 4-slot expansion backplane (BPE4). [1] - USP-232D
Dual channel RS232 serial interface (Z80DART). Baud 75-9600. Includes terminal emulator. [1] - USP-PRINT
Assembled USP-I/O board with cable and software for Centronics printers. [2]
Velleman Interface System
- Motherboard K2616: up to 4 interface card slots [3]
- K609 – DC output board (8 open-collector outputs)
- K2610 – 8-bit A/D converter
- K2611 – 8 optocoupler inputs
- K2614 – Centronics parallel interface
- K2618 – 8-bit D/A converter
- K609 – £19.01 (£25.69 kit) [4]
- K2610 – £28.26
- K2611 – £20.55
- K2614 – £30.83
- K2618 – £24.66
Card Frame expansion
Features
Original Price
MUKBUS Expansion System
by Microtext
6-slot motherboard complete with connectors. Fully buffered 64-way signal bus with on-board reset switch. Sinclair edge connector expansion. Compatible with Microtext accessories. [5]
Planned Expansion Boards: [5]
- 2K RAM Board
- Disc Interface Board
- Bar Code Reader Board
- Full 80 Column Video Interface
- Digital/Analogue Board
- Full Colour High Resolution Graphics Board
- Centronics/RS232 Interface
- MUKBUS Power Supply2 metre mains cable, illuminated on/off switch. Provides 5V @ 5A and 12V @ 3A. Capable of driving full bus and discs. [5]