Reply With QuoteZone 1 is probably a flush reed on your door (front door) near the keypad. Check for a small 3/8" round dot in the top door frame and a magnet in the top of the door.
Networx NX12 - Zones missing
Hello Forum Members,
I have been using this site in the past with some success but now I need some help.
I have bought a new place with a DAS Networx NX-12 security system. I have replaced the battery as the old one was flat.
There are five zones configured in total.
Zone 1 at the moment must be disconnected as the "1" flashes on the code pad and there is no sensor anywhere at all. That's fine as this zone will be bypassed once the system is armed.
Now, the problem I have is that two other zones ("2" and "3") do not seem to be working. If the system is armed, activation of these zones does not set off the alarm. Both zone sensors do seem to function properly as I can see the red light on the sensor to come on.
Only zones "4" and "5" will set off the alarm when armed.
I have performed the walk test with the same result. Only 4 and 5 give the chime tone on the code pad. Activation of zones 2 and 3 doesn't do anything.
There is no other indication that something is wrong. The service light is OFF. As mentioned, when the system is unarmed the zone 1 light flashes as well as the "Ready" light.
The other problem is that I don't have the "Go to Program Code" so I can't check of any other settings.
I am considering to reset the system using the power up method and then entering the code as per manual. This however does not seem to work all the time?
I am mainly concerned that two zones aren't working properly.
Thanks for your help.
| Look Here -> |
Zone 1 is probably a flush reed on your door (front door) near the keypad. Check for a small 3/8" round dot in the top door frame and a magnet in the top of the door.
Zone 1 is likely your front door or which ever door the keypad is closest too. The reed switch will be recessed into the door frame making it difficult to locate. It's quite common for doors to be replaced without the magnet being relocated from the old to new door leading to the issue that you're experiencing with that particular zone. As for zones 2 & 3, it's likely there's an issue with the devices themselves. It sounds like the system's been neglected though so it could actually be that there's a fault with the panel that the previous occupants thought too expensive to replace.
As for the system default on power up, you only get a 10 second window once you've applied power hence it won't work unless you've completed the code entry prior to the expiry of that window. Best to do it with two people if the panels a little way from the keypad.
Just another point, the fact the service LED isn't illuminated isn't necessarily an indication that there's no underlying issues. The service LED can actually be disabled in programming which some dodgey techs use to mask faults.
While Zone 2 and 3 could be numerous things -
- They are programmed in a different area or no area
- Programmed as a silent zone
- Could be programmed as a type 0 - disabled
- In the panel they could be disabled with a resistor across the zone
They are just a few suggestions.
Thanks.
You are right. The reed switch is actually missing. There is a small hole in the door frame and another one in the door. It must have been removed because there is nothing in the door and hole in the frame is empty too. I would have to check the eave if the sensor or at least the cable hasn't been removed.
It's still connected in the main unit though.
I know about the service light. It was lit indicating that the box tamper was activated as well as when system time was lost.
I would like to believe that the NX12 is still fully operable.
The manual says that the reset can only performed from a code pad which is not programmed for master code. Isn't that the case if there is only one code pad installed?
Last edited by reim-ster; 05-08-12 at 11:26 PM.
This is what I cannot check due to missing program code.Originally Posted by bet2win
With one of the options you mentioned, would the zone still show up on the code pad when activated and the system dis-armed?
At the moment, whenever someone activates 4 or 5 the zone light comes on for that particular zone on the code pad.
Short of a fault in the panel the first possibility listed above is the most likely.
The 2nd would still show on the codepad as being tripped
The 3rd & 4th would result in the zones never being shown at the codepad
Watchdog, I'm a little bit confused with your reply. I have read and re-read the OP's posts, and he (she?) doesn't mention anywhere that zones 2 and 3 have ever displayed as unsealed on the codepad. So any of bet2win's 1st, 3rd or 4th possibilities could be the cause.
I suggest a full factory default to undo any programming changes, and take it from there.
Let me help you
I also have never mentioned Z2 & Z3 showing as unsealed. Time for new glasses?
"He" is correct.
Zones 2 and 3 have never displayed on the code pad. If I walk past the sensors however, the sensor LED comes on.
There are no resistors in the panel on any of the terminals. So I can rule that out.
I have just tried[*][1] to view the areas but all I get are three quick beeps from the code pad. So no luck there either. The thing I don't understand with this option is that the manual talks about this option to view the area and after[*][1] to use 1 - 8 to view. But there are only 2 areas in total to be programmed. Does anyone know what that means?
It seems I have no other option than factory default.
The other thing to remember is that just because the led comes on at the PIR doesn't mean that the relay has switched to activate the zone I/P. I think this is the most likely cause although for two PIRs to be doing it is a worry. What brand of PIR ?
Pic attached
I'm not sure about the brand of the PIRs. I have attached a picture. Someone might recognise it.
Cheers.
Looks like those C&Ks they used to sell with the 236I Kits
Before you default
Have you tried removing the cover from the PIR. If it is wired correctly, it should go into tamper, which will indicate on the codepad. If that doesn't work, remove one leg of the resistor. If none of this works, then I guess you could swap zones around to prove the circuit, or go back to plan 'B'.
Looks like a ITI wireless detector??
Hi guys,
Still haven't had a chance to test the PIRs. I hope to get to it this weekend. Will be busy though.
Update
Hi guys,
Sorry, I haven't been in touch. I had an unexpected family visit from overseas.
Now, I have reset the NX12 by disconnecting power and entering the code within the 10 seconds. No change noticed. Zones are still not showing up on code pad when activated.
In addition, I have checked the PIR.
They are Napco PIR1710. See attached pictures.
I haven't had a chance to swap one that is working with one of the two zones that aren't working. I will check shortly.
I have noticed that there is 3.3k Ohm resistor across two terminals. Does anyone know what terminals they are? It looks to me that the tamper switch is actually not connected but a terminal is used to put the resistor in series with the N/C contact?
That is the same for the zone that is working and the one that isn't. Also, both jumpers aren't connected.
Thanks again for your help.
Cheers.
That is the normal method of wiring when the tamper switch is not used
The NX series uses a jumper on the board for the tamper. If the tamper is not used, the jumper is, and v.v.
Ok, I have just swapped two zone sensors. Clearly, I have two broken sensors. Once I had zone 3 and zone 5 swapped, 3 was working and 5 stopped working.
Does anyone know where I can buy those PIR1710 from?
Thanks for your help so far. Appreciate it.
Posting Permissions
Bookmarks