Analog Door Phone SLIM - with optional keypad
Products : Analog Door PhonesFeatures:
- Very slim modul for surface mounting only
- Supplied in variants with 1, 2 or 4 buttons
- External keypad available
- Voice communication powered from analog telephone line only
- Pulse and tone (DTMF) dial
- Two 16-digit numbers saved under each button (includes *, #, FLASH and pause)
- DAY/NIGHT mode
- Call prolongation by dialling * or #
- Electrical (magnetic) lock connection possibility
- 4 modes of relay (lock, camera, light, external bell)
- Code to hang from phone
- Code to open the door by phone
- 3 different passwords for code lock (external code from buttons)
- Optional number of rings before answering incoming call
- Optional time among button pressing by code entry
- Optional time of hanging up when using REDIAL
- Optional time before start of dialling
- Optional parameters of tone dialling (DTMF), Flash and Pause duration
- Default in different levels
- Possible programming not only by remote control (DTMF), but also by direct PC connection via USB (special tool)*
- Integrated heating of printed circuit (PCB)
- Permanent lighting through visiting cards
- Earthing outlet for better protection against static electricity
- Switchable acoustic signalization
- More info? Please write us.
FAQ: correct setting of audio - the principle of setting the acoustic path in the Analog Brave Slim doorphone:
We use three parameters 71, 72 and 73 to adjust the sound performance.
Using the interaction of these three parameters, the sound performance can be set for different conditions.
1. a quiet environment, the parameters 71, 72, 73 are set to 7
2. an environment where there is a strong ambient noise at the communicator/doorphone´s place of installation, and at the same time, with a quiet environment at the phone´s place. In this situation it is necessary to reduce the microphone´s gain (parameter 72 = 1-3) and also change the ratio of the parameters 71/73 in a way to enlarge the 73 parameter (parameter 73 = 11-15) and set the 71 parameter to a smaller value (71 = 2-4)
3. an environment where there is a strong ambient noise at the phone´s place, and at the same time, where there is a quiet environment at the communicator/doorphone. In this situation we keep the parameter 72 on value 7 and parameters 73 and 71 are set as follows: parameter 71 = 11-14 and 73 = 2-4
The principle of setting parameters is the following:
the signal from the microphone is amplified by the sum of parameters 72+71 = volume of microphone and the signal to the speaker is amplified by the sum of parameters 71+73 = volume of speaker.
To switch the direction of audio, the ratio of parameters is evaluated ( so called threshold) 73/72.
- If the parameter 72 is greater than the parameter 73, then the doorphone/communicator is favoring the direction from the microphone. We choose it when the direction to the phone is being interrupted.
- If the parameter 73 is greater than the parameter 72, then the doorphone/communicator is favoring the direction to the speaker. We choose it if the sound is being interrupted in the speaker of communicator/doorphone.