2N 9135110E, Руководство по установке

Страница: 53 / 77

Installation manual 2N® Analog Vario
53 / 77
Example:
The busy tone in the figure above is considerably longer than the pause time. Therefore, set
parameter 942 according to the pause, to 200 ms, e.g., and parameter 943 according to the
tone, to 600 ms, for example. In this case, however, the default values can be maintained for
both the parameters. Since the tone
– pause difference is 500 − 250 = 250 ms, set parameter
944 to 300 ms, for example.
3.3 Function Description
From External User's View (Visitor)
Like normal Doorbells, 2N
®
Analog Vario buttons are provided with labels the visitor finds the
appropriate button (e.g. Mr. Smith) and presses it this activates 2N
®
Analog Vario 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
®
Analog Vario unit is connected to a telephone system you may be able to tag the port
that 2N
®
Analog Vario is connected to so that you can see on the ringing phone that it
is 2N
®
Analog Vario 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
®
Analog Vario , 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
®
Analog Vario detects the PBX or analogue line
tone and hangs up too. 2N
®
Analog Vario 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
Increase parameter 944 also when 2N
®
Analog Vario is placed in a hall or corridor
with a large decay time.
