Alpha Technologies IPDP - 00C Manual do Utilizador descarregar pdf (Página 6)

The wiring of relay contacts is explained in the next picture. The symbol

"NO" means contact normally open, "COM" means sharing output

(central) and "NC" means contact normally closed. The relay contact is

isolated from the other circuits on the board. For the variants of lock

connection see the picture below.

Wiring of standard and magnetic (inverse) lock

7. A special USB cable enables the doorphone to be connected to a PC

for programming of individual parameters. A dedicated Windows

program is included on the CD (requires version W98SE or higher).

2.1.4 Switches

8. The switch marked HEAT (see figure 

8) activates heating of the PCB. This is

for increased resistance against

humidity. To use this feature you must

connect an external 12V power supply.

9. The switch marked SERVICE (see

figure  9) is required for programming

the unit when the password is forgotten.

It is performed by ordinary phone

(DTMF  tone dial ).

The switch is

Power

supply

lock

Telephone

line

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Alpha Technologies IPDP - 00C Manual do Utilizador Página 6