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+--- Thread: SEM G1 (/thread-5005.html)
- Home - 01-15-2019
Need to identify a few tings on a really old SEM Gen1 but can\'t find documents for it. Can anyone point me at them or post them please? Specifically..What is JP12 in the corner and next to the KA/KB and the white 4 pin header? Ta very muchly.
- slychiu - 01-15-2019
Comfort 1 manuals including SEM can be found herehttps://www.cytech.biz/product_details.php?item_id=312
- Home - 01-15-2019
That doesn\'t show the 2 pin connector labelled JP12.Nor does it mention anything about it
- slychiu - 01-15-2019
JP12 ?
can you show a photo?
- Home - 01-15-2019
Here\'s a picture...
- Home - 01-15-2019
Your help appreciated?
back on site tomorrow and could do with knowing what is wired to this pin location?
- slychiu - 01-16-2019
JP12 on a very early SEM should be Tamper. There should be marking TAMP and COM on the PCB, it should not be unmarked. Perhaps the text is hidden in the photo. The PCB should be almost 20 years old
- Home - 01-16-2019
Yes, 20 years old is probably about right.
As you can see in the photo, there are no markings on the PCB other than \'JP12\'.
- slychiu - 01-16-2019
Try opening the input, see if there is tamper alarm