These racks are the property of Jaak Bartok, who allowed me to borrow and describe them. Thanks, Jaak!

DAI Doel rack

An interesting application of both the DAI computer and RWE cards is this rack. It contains one RWE card, an A/D converter and a DCR mini tape drive. The DAI computer in this installation had a special video interface allowing a video camera image to be superimposed on the screen. A camera could be moved in two dimensions and an angle. The positions were converted to 0-20mA signals, allowing the DAI to print the current location and direction of the camera next to the camera image.
The installation was used in the Doel I + II nuclear power plant in Doel, Belgium.

Rack The large plug at the left connected the three analog channels to the RWC-AI card. The connector to the camera positioner is at the back. At the front are three measurement points, to be used with disconnected plug. The DCR tape drive contained the DAI control program. A board converted the DCR signals to the RWC bus, allowing the DAI computer to autoload the control program

A/D conversion card
RWC-AI This card contains an analog to digital conversion chip (AD7550BD) and multiplexers for at least 16 channels. Only three were used as height, width and angle

DAI development system 19" rack

This rack is a development system, originating from DAI/Indata itself. The current ROM contents seems to be a firmware for the Transimate, which seems to be a kind of CNC.

Development rack
The rack contains an Z80 card, two monitor cards, two extender cards, a digital I/O card, a FIFO card and a disk controller card. The power supply is from a third party, Ibis, but apparantly custom made for DAI.

SEC-Z80 card
This card contains a Z80 cpu, Z80 DART, Z80 CTC, RTC (OKI 6242), 8 kByte ROM, 96 kByte RAM and a 8255 for the bus. Modifications are a custom RS-232 level converter, bypassing the 1488/1489 sockets, and battery backup for the RAM. The current firmware has a console on channel A of the DART. (9600Bd, 8 bits, no parity, 1 stopbit). More info with the custom card for the project.

DCE-SBM card
These cards contained dip-switches to emulate inputs and leds to emulate outputs. Apparently only useful for direct bus usage, not in RWC card mode.

DCE-EX card
Not very exiting, but useful in combination with the monitor cards, for easy access to the dip-switches.

RWC-T24 card
This is the "Generic TTL interface module". Quite a lot of interfacing for 24 digital lines.

RWC-F/F &
FIFO 501
A card contraption based on a 32 byte FIFO. Both parts have the logo "Transimate", at one time a trademark of Fabricom S.A., which is now part of the GFD Suez Group. Fabricom, or FSA as it is now known, is specialized in assembly systems.
Monitor description:
Prompt: "next command" All commands are executed directly. They are: 0 - prints "checksum error" 1 - prints "checksum error" C - prints "TRANSIMATE RUNNING", and dumps binary? data R - prints "TRANSIMATE RUNNING", and dumps binary? data S - prints "checksum error" T - prints "checksum error"

Indata disk
controller
This floppy disk controller is quite an update from the original PDM-FDC card. This is an 8085 based card with a WD2797 FDC. The only board explicitly labeled Indata, the company that took over after the DAI bankrupcy.

DAI development system 9.5" rack

This rack is a development system, originating from DAI/Indata itself. There is no firmware in this rack.

Development rack

From the DCE Manual: The DCE-X forms the base of the memory—expandable DCE series, with up to 64K bytes of PROM and RAM memory in any combination. A flat- cable X-BUS connector allows the DCE-X to be linked with up to eight MX memory modules in any combination, to provide up to a maximum of 64K bytes of memory. No memory is provided on the DCE-X. Standard X-BUS cables are available for connecting memory modules. All X-BUS signals are buffered. The cables are kept short with critical signals screened, to eliminate noise problems.

From the DCE Manual: The MX-84 module provides 8K bytes of PROM space and 4K bytes of static RAM as expansion memory for DCE-X processor based systems.

From the DCE Manual: The DCE-SBM System Bus Monitor module provides 24 LED indicator lamps for monitoring the status of the address, data and control lines of the DCE-BUS. 24 switches, also connected to the DCE-BUS lines, enable manual generation of input signals to the bus. A system Reset switch enables the entire DCE microcomputer system including RWC Real-World interface modules to be reset. Two jumper contacts allow manual generation of the two interrupt request signals carried by the DCE-BUS.

An experiment card for the RWC bus. In this instance the mandatory 8255 is not used and the signals come directly from the DCE-bus. The card appears to have some static RAM (2111) connected to the DCE-bus and a 7-segment LED-display with drivers connected to the processor card UARD-I/O-bus (with the grey cable).

A collection of DCE-GIM boards, intended to use the processor card UART-I/O-bus. This bus is essentially the TMS5501. The borads are all identical, but differ in components.

Updated: 2025-10-17

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Rack		The large plug at the left connected the three analog channels to the RWC-AI card. The connector to the camera positioner is at the back. At the front are three measurement points, to be used with disconnected plug. The DCR tape drive contained the DAI control program. A board converted the DCR signals to the RWC bus, allowing the DAI computer to autoload the control program
A/D conversion card RWC-AI		This card contains an analog to digital conversion chip (AD7550BD) and multiplexers for at least 16 channels. Only three were used as height, width and angle

Development rack		The rack contains an Z80 card, two monitor cards, two extender cards, a digital I/O card, a FIFO card and a disk controller card. The power supply is from a third party, Ibis, but apparantly custom made for DAI.
SEC-Z80 card		This card contains a Z80 cpu, Z80 DART, Z80 CTC, RTC (OKI 6242), 8 kByte ROM, 96 kByte RAM and a 8255 for the bus. Modifications are a custom RS-232 level converter, bypassing the 1488/1489 sockets, and battery backup for the RAM. The current firmware has a console on channel A of the DART. (9600Bd, 8 bits, no parity, 1 stopbit). More info with the custom card for the project.
DCE-SBM card		These cards contained dip-switches to emulate inputs and leds to emulate outputs. Apparently only useful for direct bus usage, not in RWC card mode.
DCE-EX card		Not very exiting, but useful in combination with the monitor cards, for easy access to the dip-switches.
RWC-T24 card		This is the "Generic TTL interface module". Quite a lot of interfacing for 24 digital lines.
RWC-F/F & FIFO 501		A card contraption based on a 32 byte FIFO. Both parts have the logo "Transimate", at one time a trademark of Fabricom S.A., which is now part of the GFD Suez Group. Fabricom, or FSA as it is now known, is specialized in assembly systems. Monitor description: Prompt: "next command" All commands are executed directly. They are: 0 - prints "checksum error" 1 - prints "checksum error" C - prints "TRANSIMATE RUNNING", and dumps binary? data R - prints "TRANSIMATE RUNNING", and dumps binary? data S - prints "checksum error" T - prints "checksum error"
Indata disk controller		This floppy disk controller is quite an update from the original PDM-FDC card. This is an 8085 based card with a WD2797 FDC. The only board explicitly labeled Indata, the company that took over after the DAI bankrupcy.

Development rack
		From the DCE Manual: The DCE-X forms the base of the memory—expandable DCE series, with up to 64K bytes of PROM and RAM memory in any combination. A flat- cable X-BUS connector allows the DCE-X to be linked with up to eight MX memory modules in any combination, to provide up to a maximum of 64K bytes of memory. No memory is provided on the DCE-X. Standard X-BUS cables are available for connecting memory modules. All X-BUS signals are buffered. The cables are kept short with critical signals screened, to eliminate noise problems.
		From the DCE Manual: The MX-84 module provides 8K bytes of PROM space and 4K bytes of static RAM as expansion memory for DCE-X processor based systems.
		From the DCE Manual: The DCE-SBM System Bus Monitor module provides 24 LED indicator lamps for monitoring the status of the address, data and control lines of the DCE-BUS. 24 switches, also connected to the DCE-BUS lines, enable manual generation of input signals to the bus. A system Reset switch enables the entire DCE microcomputer system including RWC Real-World interface modules to be reset. Two jumper contacts allow manual generation of the two interrupt request signals carried by the DCE-BUS.
		An experiment card for the RWC bus. In this instance the mandatory 8255 is not used and the signals come directly from the DCE-bus. The card appears to have some static RAM (2111) connected to the DCE-bus and a 7-segment LED-display with drivers connected to the processor card UARD-I/O-bus (with the grey cable).
		A collection of DCE-GIM boards, intended to use the processor card UART-I/O-bus. This bus is essentially the TMS5501. The borads are all identical, but differ in components.