Recent content by dwalt

Anyone have a new or used 42A00-1 or 42A00-2 you are willing to sell? Insurance requirements are forcing a number of my clients to add more devices.

Ordered eproms per your suggestion. They are either new or extremely clean pulls. Blank checked and programmed fine. Thx.

Thx, I was wondering if it was compatible.

Anyone know of a US source of 27C801 eproms? 99% on ebay are from China. The few US listings show many comments about mislabeled/fake chips. Are there any OTP versions of the 27C801? I need to stick with the standard DIP package for my programmer and the HAI controllers...

Is there a chance the Elk M1ZTS might work? Its also a 3 wire device that runs on 12 volts. Temperature range is -50 to +140 which is slightly greater than the HAI.

some pics of the caps

I started going thru my broken temp sensors. The corrosion comes off easily with vinegar and water rinse. I need to replace some caps (mechanical damage). I believe they are Nichicon 100uf 25 volt smd caps. The only other code on the cap looks to be G3P, G4P, PTP and a 0 with a slash thru it...

I've been stockpiling parts to support my HAI clients. The one thing I'm running short of is temperature sensors. I use them in an outdoor snow melt system and after 10-20 years outside they are failing. Lots of corrosion on the whole circuit board. Looks like I'm going to have to start...

Have you ensured the HAI is first in line for the phone? This is done using a RJ31X jack or some punch downs like the OnQ which have a dedicated security system jack. Have you removed all other devices from the phone line? What does the HAI phone led do when calling in or out...

My clients all moved from copper to VOIP. No problems at all.

If you assign 192.168.1.1 as your router address and 255.255.255.0 as your mask, then addresses from 192.168.1.2 to 192.168.1.254 are available for DHCP. The 192.168.1.255 address is a special case so lets ignore it for now. Theoretically you should always assign the HAI an address outside the...

No bent pins, waited longer than 3 minutes, tried 3 different eproms. Status led stayed off.

I must be missing a step. I bought a used Omni2e 5 serial port version. It seems to be working. I can check zones for example. I can ping it on my network. Since I don't have any codes, I removed Jumper 10 and put an Omni 2e eprom (2.15a) on the board. It never came up on the eprom. It turned on...

I believe 1.9 is the last version for the OmniPro. I only have the OnQ version.

Whenever - Security/Alarms - Alarm turns on or cuts off - Water