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INTRODUCTION
Telephone interface for conventional 4+N systems (for both electronic calls and buzzers).
It permits the connection of a 4+N audio door entry system to the subscriber loop of the
corresponding apartment, allowing a conventional fixed-line telephone to take on the functionality
of a 4+N handset. This allows the following combinations:
Communication from the audio door entry system to the apartment's telephone.
Communication from the audio door entry system to the apartment's telephone with an ADSL
line.
Connection from the audio door entry system to telephone extensions in analogue PABXs.
It allows calls from the audio door entry system to be received on standard tone dial telephones
that work on fixed-line network “PSTN”. For this, they must be installed on the local subscriber
loop of the IT-4N telephone interface. A maximum of 4 telephones can be installed.
Divert function for calls originating from the audio door entry system to any telephone on the fixed-
line or cellular networks. A maximum of 3 telephone numbers can be programmed.
An acoustic indicator in the handset of the local subscriber loop informs of any calls from the audio
door entry system or from the telephone line.
Allows switching between calls from the subscriber loop and the audio door entry system using
the telephone's keypad, keeping both connections active.
Compatible with analogue PABXs, allowing the interface to be connected to the PABX's input line
or to its extensions.
Compatible with ADSL lines and with the splitters supplied by the ISP.
Allows the activation of functions and commands via the keypad of the telephone on the local
subscriber loop.
It has an input for enabling the call divert mode via an external switch.
It has a 12 Vcc/40mA output to indicate that the call divert mode is enabled.
It has a potential-free auxiliary output, NO/NC 30 Vdc/Vac 1A.
Operation LEDs that indicate the current state and mode of the interface.
First of all we would like to thank and congratulate you for the purchase of this product manufactured
by Golmar.
The commitment to reach the satisfaction of our customers is stated through the ISO-9001
certification and for the manufacturing of products like this one.
Its advanced technology and exacting quality control will do that customers and users enjoy with the
legion of features this system offers. To obtain the maximum profit of these features and a properly
wired installation, we kindly recommend you to expend a few minutes of your time to read this
manual.
SYSTEM CHARACTERISTICS