DiRICH5s1 (DiRICH5 standalone)
The DiRICH5s1 is just like the DiRICH3-5, but it its own optical transceiver and the power connector (with trigger and clock) on board, therefore it is standalone and doesn't need a backplane.
![dirich5s.jpg](https://jspc29.x-matter.uni-frankfurt.de/trbweb/includes/thumbnail.php?file=dirich5s.jpg&max_width=1024&max_height=2048&quality=80)
The DiRICH5s1 is just like the DiRICH3-5, but it its own optical transceiver and the power connector (with trigger and clock) on board, therefore it is standalone and doesn't need a backplane.