GGG posted:Those pesky TVS everyone likes to add to layout and devices, and low an below these short and you don't know it. These where a fix for Rev L TIU to protect the transmitter. Good to know. So what I would love to know, is how long an Sans TVS Rev L or a Rev I last on your layout. Another component to check when repairing TIUs. Thanks for posting. G
Yeah they fail to short-condition because its a zener. If you were super careful you could just run without them, but the component taking the hits will be the ACT244 octal. It's beefier and has an ESD clamp on the chip die, but it's a much more painful thing to change since you need the hot air.
