Review on 🎥 Cerevo FlexTally Multi-Camera Tally Light System - Wireless/Serial Connection - 1 Station for Video Switchers & 4 Lamp Units per Camera by Eric Glup

. This system has been hard to come by for most of 2020. (from research) that it is a quality product. Now that I have it, I can confirm that it's high quality, but it's really REALLY missing instructions from Cerevo (as well as various YouTube videos). So you'd better learn a little bit about GPIO before you buy this system. I gave it four stars because Cerevo doesn't help much; and their online/website "manual" is terrible. This is NOT plug and play, at least for me with my DataVideo 1200MU switcher. There are detailed instructions for setting the DIP switches in the Tally Light units and in the station. You need perfect (better than perfect) vision and bright lighting to see and physically toggle DIPS to your switcher's specs. I offer a magnifying glass on a stand. And don't be too aggressive with DIP switches. They're pretty fragile. Cerevo provides a DIP switch tool in your kit. So, after switching all the DIPS and charging the beacon batteries (USB charging; 2 hours per beacon), I connected the station to my DataVideo 1200MU GPIO switcher (a 15-pin D-Sub connector, similar to 3- in-line VGA connector). Of course, the indicators lit up without any logic or meaning. Some are green, some red. Nothing made sense. I slept about it. The next day, a lightbulb (no tick) lit up in my head. Look at the GPIO output pin configuration on my DataVideo switcher and compare it to the FlexTally input pin configuration. That was the answer. The GPIO DataVideo output pin configurations did not match the Cerevo input pins. So I bought a pair of D-Sub male/female connectors (large hobbyist type; see photos) and wired each up to convert from one configuration to another. You will need the 15 pin configuration from Cerevo (found in their online manual) and the configuration for your switcher (at least I need it for my DataVideo 1200MU). I found that I only needed 8 individual wires (for 4 red "hot" camera lights and 4 green "duty" camera lights, plus another wire for ground. Connected to the switch and Cerevo station. BAM! Everything worked great. Maybe this will help you with your switch and Cerevo Tally Lights, maybe you don't need it. Thanks for reading.