What is the maximum length of an ILDA cable when used between an external ShowNET and a laser system?

The official ILDA guidelines provided by the International Laser Display Association does not specify the maximum length of an ILDA cable with 25-pin D-sub connectors. Nor can we provide you with definite information in this regard. However, it is important to use high quality cables, as this will definitely have an impact on the possible cable length.

In the following video we have tested different cable lengths and qualities:

https://youtu.be/I8PZ3jg8jLA