I installed my system 8 or 9 years ago. I stopped using it when we had our grand-kids coming and going about 5 or 6 years ago.
Now I've set it up again, but I can't find the remotes. How do I arm and disarm the PS561 control manually?
I don't believe you can arm and disarm that console with its keypad.
You may have to get a KR10A or the newer KR32A Security Keyfob. The SH624A Table Top remote would also work.