Door intercomm issue

[Ray phillips 0]

Hi all After some advice on an intercomm I was recently asked to change, only been doing them a year or so so still got a lot to learn. The old video intercomm a Genway 4 wire was being problematic so changed it for a similar 4 wire unit which is for a doctors surgery. Video & audio works fine just wont open the door when button pressed. On the Genway you could open the door from the handset but the new one wont work when button pressed on the internal staion. It's an auto door if that helps. On the Genway there was a 2nd output for the door cable on the back of the intercomm. Any guidance appreciated.

 

 

[PeterJames 681]

You just said I have a piece of string, how long is it?  in order to help you we need proper info like. What have you replaced it with? what lock is in situ? how have you wired it? 

[Ray phillips 0]

Forgot to upload pics  

Old unit was a 4 wire Genway, the door cables were connected to the back of the door station from a 2nd output which is the 2nd white connector block on rear panel photo. The new unit is a ccl which is also 4 wire with 2 black for connection to door lock. Also it is existing cabling video and audio work fine just door release having problems with.

Edited June 30 by Ray phillips

[james.wilson 731]

i presume you need a clean switch to operate your auto door, is the output a switched 12v?

[Ray phillips 0]

18 minutes ago, james.wilson said:

i presume you need a clean switch to operate your auto door, is the output a switched 12v?

Not sure how do I find out. Output from what ?

[james.wilson 731]

58 minutes ago, Ray phillips said:

4 wire with 2 black for connection to door lock

what have you connected this to? 

 

[Ray phillips 0]

2 minutes ago, james.wilson said:

what have you connected this to? 

 

Tried connecting the 2 blk wires from door station to the red & black from door but no joy.

[james.wilson 731]

im not suprised your lucky you didnt damage something. ie the sliding door controller they arnt cheap

 

You need to check whats on those black wires when, i dont have the manual in my hand. Id assume they are designed to go to a lock release not a door controller for a sliding door

 

[Ray phillips 0]

11 minutes ago, james.wilson said:

im not suprised your lucky you didnt damage something. ie the sliding door controller they arnt cheap

 

You need to check whats on those black wires when, i dont have the manual in my hand. Id assume they are designed to go to a lock release not a door controller for a sliding door

 

Your probably right james, when the release button on the intercomm is pressed you get a reading of the 2 blk wires.

[james.wilson 731]

Great whats the reading?

[Ray phillips 0]

12 minutes ago, james.wilson said:

Great whats the reading?

Cant remember was last friday will check again when I go back.

[al-yeti 519]

4 hours ago, james.wilson said:

Great whats the reading?

Assume new intercom needs relay?