Door Keypad Tamper Proof Screw

[online]

Hi all,

I've recently moved to a house with a automatic gate with a ACH intercom keypad and a Commax door phone inside the house.

Everything works as it should apart from calling from outside using the keypad as it wouldn't ring the phone inside.

I don't know much about intercom / automatic gate system, and want to learn through the process of fixing it myself.

It's a 4 wire system, I've tested the intercom phone by shorting the pins and it rings. Not sure if it is the broken wire or the keypad.

I want to unscrew the keypad from the wall, but the screws are some sort of tamper proof screw which I couldn't identify online.

Dose anyone know what is this screw called? and the model number of the keypad?

Can any one provide advice on intercom system will be appreciated.

 

[sparkymarka]

It's probably a cvdi keypad it has the same security screws and the keypad CBB

 

[London Mike 49]

Here is a list of the most common types https://en.wikipedia.org/wiki/List_of_screw_drives

Mike

 

[sparkymarka]

It's none of them it's called a DIAX screw you need a DIAX spanner ( ODIAX )

 

[online]

It's none of them it's called a DIAX screw you need a DIAX spanner ( ODIAX )

Thanks! Found the key here.
http://www.onlinesecurityproducts.co.uk/door-entry-fixings-accessories/O-DIAX.html

the key cost £3, but the shipping cost £10! unbelievable!
Can't find it any where else, guess I have to swallow it!

 

[sparkymarka]

Try ringing cvdi tomorrow !

 

[EightyTwo]

Or CDVI...

 

[sparkymarka]

Man flu .......!