2N Door intercom 2N Helios - Manual, 1322 v3.0 - Manual (Page 52)

Function Description 4.1
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4.1 Function Description
From External User's View (Visitor)
Like normal Doorbells, 2N® Helios buttons are provided with labels the visitor finds
the appropriate button (e.g. Mr. Smith) and presses it this activates 2N® Helios to
then dial the number pre-programmed for under that button, the visitor can then hear
the ringing tone from the loudspeaker and the required (Mr. Smith„s in this case)
telephone is ringing. If the 2N® Helios unit is connected to a telephone system you
may be able to tag the port that 2N® Helios is connected to so that you can see on
the ringing phone that it is 2N® Helios that is calling. When the called party answers
the call, the visitor and tenant can speak to each other and If an electric lock is
connected to 2N® Helios, the called person can open the door by entering the correct
password on the telephone keypad to activate the door or barrier. When the caller
hangs up, 2N® Helios detects the PBX or analogue line tone and hangs up too. 2N®
Helios also hangs up when it “hears” the busy tone or if the call takes more time than
pre-programmed to connect. You can pre-program the amount of time that you have
to speak into the microphone however when you are reaching the programmed time
the unit gives a warning tone 10 seconds before hanging up so that the called party
can extend the call if required.
Note
 If the visitor presses another button during the call, 2N® Helios hangs up
for a few seconds before dialling the new number.
 If a button is pressed that has no number stored within it 2N® Helios
picks up the line, sends a refusal tone (refer to the Signals Overview) and
hangs up.
 If the visitor presses the same button during the call, 2N® Helios may
hang up (can be programmed to stop this feature if required).
 The above mentioned rules are only applied if the Automatic Multiple
Number Dialling mode is OFF. For this special mode refer to the Automatic
Multiple Number Dialling section.
Function Description
– Numerical Keypad Models
The 2ENTRY ® Helios basic units, Part Nos. 9135130K and 9135160K, are equipped
with a numerical keypad. The keypad provides a number of functions:
 traditional code lock
 features as if a normal telephone set
 DTMF transmission during an outgoing call
 substitution of up to 54 buttons
The keypad features a smart metal design and very favourable price to performance
ratio. For the description of the functions from the user„s view see below.