![](https://tesotec.de/wp-content/uploads/2022/11/expander_channels.jpg)
All AVI64- and PS1600-channels had to be switched and distributed like this:
A single relais-module is hosting 16 of the left side switch matrix :
![](https://tesotec.de/wp-content/uploads/2022/11/expander_single-expander-1024x559.jpg)
![](https://tesotec.de/wp-content/uploads/2022/11/hardware.jpg)
16 relais-modules find place on bottom site of a V93000 interface PCB.
- 256 PS1600 and AVI64 channels are connected.
- 256 Universal channels created.
- 1024 relais independently switchable.