Why can't I control AVS-HDB-4TX by control device through the RS-232 port on my Black Box Extender?
- TTodd PhillipsAug 5, 2025
If you cannot control the AVS-HDB-4TX with a control device like a PC via the RS-232 port on your Black Box Extender, first check that the RS-232 communication parameters are correct. If the problem persists, contact Black Box Technical Support at 724-746-5500 or info@blackbox.com.