Wallner cbs 2028 timer - info / manual

Hello, I found this timer for about 60€. It seems working.
I can't find any info online on this specific model.

Nice find—€60 for a working CBS 2028 is a solid pickup, info’s scarce but Wallner timers are usually tanks, so if it powers on you likely scored

I have some Wallner gear (System 500) and may have some info in the paper indexing feature somewhere. It may cross over. I haven't relied on the equipment for a decade or so but it worked well for getting 95% correct first prints when I was doing high volume print sessions back then. When I get home, I'll check.