At the beginning were the front panels and a provisional frame to mount the boards.
![](../images/analog_01.gif)
Now the problem arises how to arrange the power supply, the front end units and the like. A sloped console would be nice. However, it should be not overly expensive. So we decide in favor of readily available hardware:19", 3U.
![](../Analogrechner/Analogrechnerbilder/an_me01.gif)
A provisional mockup demonstrates the principal feasibility. However, the amount of working hours woud be prohibitively high.
![](../Analogrechner/Analogrechnerbilder/an_me02.gif)
So we will restrict ourselves to a more straightforward design, at least for now.
![](../Analogrechner/Analogrechnerbilder/an_me10.gif)
During bring-up of the master controller and converter subsystem, each of the microcontrollers has been connected to its own debugging console.
![](../images/Analogrechner/kdo01_01.gif)
Obviously, this plethora of boxes is somewhat unwieldy. Two consoles should be sufficient. They are mounted on a front panel in the form factor 19", 3 U, 84 HP, connected to the frame of the machine.
![](../Analogrechner/Analogrechnerbilder/analog_bringup_X03.gif)
This auxiliary troubleshooting unit ("Inbetriebnahmehilfsgeraet") will be mounted only during bring-up and to troubleshoot tough dogs . . .The placement on top of the machine leaves the 19"-rack at bottom empty to accommodate front end modules and even tablet computers.
![](../Analogrechner/Analogrechnerbilder/analog_bringup_x01.gif)
![](../Analogrechner/Analogrechnerbilder/analog_bringup_X02.gif)
The machine wired completely:
![](../Analogrechner/Analogrechnerbilder/analogdraht_09061x.gif)
Some impressions from basic functional tests. XY presentations on an oscilloscope screen. The arrow in the picture above points to the XY-adapter.
![](../Analogrechner/Analogrechnerbilder/analogtest15_10.gif) ![](../Analogrechner/Analogrechnerbilder/analogtest15_11.gif)
![](../Analogrechner/Analogrechnerbilder/analogtest15_15.gif) ![](../Analogrechner/Analogrechnerbilder/analogtest15_12.gif)
Here the XY-adapter is not yet built in:
![](../Analogrechner/Analogrechnerbilder/analogtest15_16.gif)
![](../images/Analogrechner/mech13_02a.gif)
A closer look from behind... 1 – master controller; 2 – main output converter; 3 – aux output converter; 4 – main input converter; 5 – aux input converter; 6 – function generator; 7 – headers for programming and connection with I/O circuitry; 8 – headers for connecting the front panel; 9 – 10 AVRs programmed as “computing amplifiers” (summers, multipliers, integrators and the like); 10 – central adapter (serial connections, programming, USB, power supply).
A look from behind with boards removed:
![](../images/Analogrechner/mech13_07.gif)
The power / interfaces / programming adapter
Here the power supplies, the external interfaces and the programmer are to be attached.
![](../images/Analogrechner/za13_03.gif)
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