Fire service resets have been notorious for being slow. Even on our TAC 32 units I teach customers to turn to reset, count to 5, then turn to off. Quickly turning key can sometimes reset car or group only, and leads to a lot of headaches.

IDWT, thanks for the info. For sure a lot easier to work on in a controller. I used to keep no fewer than 8 known good L24 cards and cords so I could build false riser in the machine room. With a new LN card you could find and bind, download the Lon.cfg, and trouble shoot bad L24s.