2 hours ago, JOHNNYH said:

what cable is recommended ?

depending on cable lengths the non network side should be copper alarm cable

 

CQR 8 Core Professional Alarm Cable White [CAB8/WH/100M]

It's in the manual, Type 1 or 2 copper intruder cable. So CQR Pro 8 or equiv.

This should be tripled up in most cases.

The transmission is TTL, you can expect occasional network errors, it logs them until you reset them.

Something is wrong if you are watching them tick up live.

On 08/05/2024 at 21:39, MrHappy said:

 

Every possible measurement needed to commission and diagnose an intruder alarm can be done with multimeter

 

If you have property large enough to need 5 expanders & lots of expensive test equipment I would assume some with your qualifications & talent could earn more more doing your own job & pay a proper alarm co. to provide a working complaint system rather faff around wasting time & money doing it poorly.   

 

 

 

 

 

 

Sorry I disagree ?

 

I have some expensive Fluke 87 DVM meters although a superb multimeter, they will never see or detect a 50ms pulse or dip in the supply !!

 

My 500mhz Keysight scope on the other hand nicely showed me the issue on the Network power lines, even when the alarm panel was disarmed.

 

I'm sure a multi meter is great for 90% of the issues, but if you need to see fast acting transients, you will only ever see that on a oscilloscope due to the speed it can capture ? 

 

 

 

Alarm panel is now being shipped back, will order another one identical

 

Thank you to everyone for your help albeit never really go to the bottom of the issue, can only think it was faulty or old hardware,

I even took all the expanders off and just had the keypad connected and still had the same issue ???

 

The seller said this was normal and I should expect a dip in the supply ??? as that is what he experiences with the keypad and alarm panel ??? 

 

 

 

 

Edited May 13, 20241 yr by JOHNNYH

55 minutes ago, JOHNNYH said:

I'm sure a multi meter is great for 90% of the issues, but if you need to see fast acting transients, you will only ever see that on a oscilloscope due to the speed it can capture ? 

 

Sorry I disagree-

 

I've never had any reason to use an oscilloscope on an intruder alarm nor do I need a £500+ multi meter (it would only get lost or broken out in alarm land) 

 

Aged 17 or so I knew something like a 9600 required a power supply to run all 16 zones & multiple keypads & speakers

 

Who would have guessed more than 30 years later I'd still be having conversations with people who don't understand the basics principles,

 

Suitable current in day & alarm, suitable voltage at each device when running off the battery, if you've not got this you'll have problems

 

Your alarm appear to have lots of problems I've got lots of alarms with very few problems, its funny old world isn't it ?

1 hour ago, MrHappy said:

 

Sorry I disagree-

 

I've never had any reason to use an oscilloscope on an intruder alarm nor do I need a £500+ multi meter (it would only get lost or broken out in alarm land) 

 

Aged 17 or so I knew something like a 9600 required a power supply to run all 16 zones & multiple keypads & speakers

 

Who would have guessed more than 30 years later I'd still be having conversations with people who don't understand the basics principles,

 

Suitable current in day & alarm, suitable voltage at each device when running off the battery, if you've not got this you'll have problems

 

Your alarm appear to have lots of problems I've got lots of alarms with very few problems, its funny old world isn't it ?

Sorry I disagree … i have a OND, HND and degree in electronics 

 

i design advanced pcbs in Altium every day of my life designing embedded electronics with ARM F4 and F7 STM 32 processors. 

 

I program in embedded C utilising all the STM32 peripherals I2C, SPI, CAN, UART

 

i use segger debuggers , Salae logic analysers, Fluke multimeters, keysight scopes 

 

i can assure you I know the basics principles and lot more aside lol

 

yes every day I am more amazed at what a funny world it is ???

the alarm panel does not have lots of issues for the record, it simply dips the power at exact time periods of 50ms twice within a minute, not that you would be able to detect this with your multi meter !

 

I would also go as far to say the next elite 88 panel I purchase this week will be no different and act in exactly the same way 

 

not sure if you read the last text ? But even with 1 keypad and 1 alarm panel on less than a meter of cable, I get same results!!!

 

it’s very clear from the scope that the alarm panel is being instructed to kill the 12v for 50ms and switch over to the 12v battery supply as part of the battery test, not that you multi meter would show this

if you care to do the R&D you will find out about the elite panels all do this act as part of the battery test.

 

not once has anyone mentioned this, 

 

 

Yes it is a funny world of funny people

3 minutes ago, JOHNNYH said:

not once has anyone mentioned this, 

 

As I understand it a a switch mode power supply switches on & off this is what I assume you are seeing on a scope ?

 

Texecom has been around nearly 40 yr & turn over nearly 40 million,

 

My stuff works, yours system despite your test equipment & qualifications doesn't ?

16 minutes ago, MrHappy said:

 

As I understand it a a switch mode power supply switches on & off this is what I assume you are seeing on a scope ?

 

Texecom has been around nearly 40 yr & turn over nearly 40 million,

 

My stuff works, yours system despite your test equipment & qualifications doesn't ?

 

your not listening, please take time to read and analyse  before posting.

 

the switch mode power supply is 100% stable, 13.6V rock solid !!, there is no switching noise, it would be a **** psu if there was lol, 

 

the network 12V every 30seconds produced a dip for 50ms as it switches to battery test mode,  more than likely done by a FET by design !!

 

Try doing some research you may find your elite panel  is doing the same lol, though you would never know with your multi meter  ?

 

as I keep saying everting is working, 100% please stop saying my kit is not working, as it’s starting to sound infantile 

 

it’s very common knowledge from Texecom these elite panels operate in this way 

 

very surprised your not aware for having so many years with Texecom alarms systems ????

 

 

 

 

1 hour ago, JOHNNYH said:

 

your not listening, please take time to read and analyse  before posting.

 

the switch mode power supply is 100% stable, 13.6V rock solid !!, there is no switching noise, it would be a **** psu if there was lol, 

 

the network 12V every 30seconds produced a dip for 50ms as it switches to battery test mode,  more than likely done by a FET by design !!

 

Try doing some research you may find your elite panel  is doing the same lol, though you would never know with your multi meter  ?

 

as I keep saying everting is working, 100% please stop saying my kit is not working, as it’s starting to sound infantile 

 

it’s very common knowledge from Texecom these elite panels operate in this way 

 

very surprised your not aware for having so many years with Texecom alarms systems ????

 

 

 

 

So all this means when you get a new alarm panel and you say it will be the same as the last one , you will be in the same boat ? 

 

Problem unresolved?

5 hours ago, JOHNNYH said:

Sorry I disagree ?

 

I have some expensive Fluke 87 DVM meters although a superb multimeter, they will never see or detect a 50ms pulse or dip in the supply !!

 

My 500mhz Keysight scope on the other hand nicely showed me the issue on the Network power lines, even when the alarm panel was disarmed.

 

I'm sure a multi meter is great for 90% of the issues, but if you need to see fast acting transients, you will only ever see that on a oscilloscope due to the speed it can capture ? 

 

 

 

Alarm panel is now being shipped back, will order another one identical

 

Thank you to everyone for your help albeit never really go to the bottom of the issue, can only think it was faulty or old hardware,

I even took all the expanders off and just had the keypad connected and still had the same issue ???

 

The seller said this was normal and I should expect a dip in the supply ??? as that is what he experiences with the keypad and alarm panel ??? 

 

 

 

 

You bought from eBay ?

For someone with all the kit and knowledge you seem to assume a lot, instead of diagnosing it.

We may as well speak into the void at this point.

Your repeating the same thing and clearly not reading or taking in what people are saying, your the one with the issue and looking for help...

 

6 hours ago, JOHNNYH said:

your not listening, please take time to read and analyse  before posting.

 

 Congratulations on being our latest alarm expert & welcome to the moderation team....

 

Edited May 14, 20241 yr by MrHappy