Hi guys. 
 

I have 4 hochiki IO’s for my 12 door net 2 paxton access control units. Any idea if I need 1 IO for each door controller (1 door in 1 controller btw) or is there any other way of wiring them? Many thanks! 

Your question isnt clear but I guess you are asking about connecting the fire alarm to the access control to release the doors when the fire alarm goes off.

 

To be compliant you should wire them in series with the locks not into the controller, they should in the event of a fire drop the power to the lock as default. If you wire them to an input on the Paxton and programming the paxton to release the doors, then you are reliant on the Paxton kit working when a fire breaks out which then means the Paxton has to be compliant to BS5839 which its not  

Thank you. What do you mean locks not in the controller? 

You could do it all with one on Paxton but as pointed out it wouldn't conform.

Should be an interface local to each door breaking the power directly like with local emergency door releases.

Can't rely on the controller or the access network in case it FTO

 

2 hours ago, David Walsh said:

Thank you. What do you mean locks not in the controller? 

What do you think it means? Think about what you are trying to achieve and then ask yourself that question again.

On 31/03/2023 at 18:00, David Walsh said:

Thank you. What do you mean locks not in the controller? 

As a newbie or chancer as some might say

 

I assuming you need to fit something in-between the lock and the controller , this way controller has no choice that doors are released ???

Al drop the chancher bit, your asking, if you cant ask with some positive feedback tsi is dead.

As Pete says the fire overide needs to be at each head droping the power to each lock as part of the fire not a network intruction

 

I was handed mine earier today as functional earths need a different colour I need to get back in the ring

 

It's been Pink for a little while now. The colours in the regs for DC make little sense but I suppose when they specified and then changed them initially that made no sense either...

On 31/03/2023 at 17:26, David Walsh said:

I have 4 hochiki IO’s for my 12 door net 2 paxton access control units.

 

 

 relay per door, dropping the lock

 

4 IO's = 8 doors ?

It's usually down to who controls what tho.

Who will commission the fire etc.

I would always expect one for one unless told and confirmed in writing otherwise.

You want to minimise the length of the runs from the fire system and also minimise failures if there is an issue with the loop.