How to tell the difference between dsc alarm panel

HOW TO TELL THE DIFFERENCE BETWEEN DSC ALARM PANEL UPGRADE

Oh and I was able to default the old board and I guess I can sell it. I ended up buying a PC1832 board and RFK5500ENG keypad.

HOW TO TELL THE DIFFERENCE BETWEEN DSC ALARM PANEL UPGRADE

Anything else to watch out for during this troubleshooting and upgrade process? Is it better to get a new panel? I would rather not start over unless it is necessary. Any recommended resellers (if allowed to recommend)? Are the LCD5501Z and LCD5500Z keypads are supported and will they show the extra zones? Which one is better? What is a recommended hardwired replacement PIR sensor? Can/should I replace the keypad and what is compatible? One issue I see is that keypad only shows 8 zones of information but I will be getting up to a dozen zones. Do these part numbers look correct and current, and are they compatible with the PC1555MX v2.3 if I can program this panel? I also want to add a wireless smoke alarm (DSC WS4916) and a wireless PIR sensor to the garage (DSC WS4904P). I want to add window sensors and a sensor to the back door and I think the WS4945 could suit that. Based on what I've read, I could get a RF5132-433 wireless receiver which will give me up to 32 zones (panel is not too old?). Then I want to know what I can do add wireless devices to enhance my home security.

The system is basically half-baked and I have the number 8 trouble light on which I believe is a wrong system clock.ДЄfter I default the panel to get my installer's code reset, I need to reprogram it, which I think I can do based on the archived threads here and the manual. I have 3 zones activated.ДЎ - Front and garage entry doors (not actual garage door, but human access door) I know the master code and have 2 user access codes. But before I do that, I want to describe the state it is in now. It has a very basic 8 zone keypad (see picture below) I have stupidly forgotten my installer's code and I have been reading relevant threads here to default the panel. I currently have a functioning and monitored DSC Power632 system with a PC1555MX that I installed about 10 years ago or so and pretty much did a set and forget.

How to tell the difference between dsc alarm panel