Elevator emergency telephone NRT 3 NT
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NRT 3 NT
Constructed in the same ways as the NRT 1 NT+, this emergence telephone offers further interesting application options using plug-in additional modules. A DC/DC converter and I/O module can be retrofitted. The I/O module, for example, makes a total of 3 monitored lines and 2 switching outputs available that can handle monitoring and control tasks.
The unit can be configured, read out and serviced conveniently on site using a PC and a simple terminal program. An emergency telephone for transmitting elevator emergency calls using an analogue telephone line. Switching is done either using a Telegärtner control device or optionally using a normal telephone (janitor, caretaker). A digital data protocol and/or an optional recorded announcement enable the identification of the elevator. Up to 3 voice units per elevator ensure clear two-way speech communication, whereby the volume and microphone sensitivity can be controlled using remote control commands.
If required, a calming recorded announcement can be played in the elevator car in the case of an emergency.
The alarm buttons from the individual voice units can be configured as NC or NO contacts in the NRT 3T.
In this way, for example, a broken cable can be securely identified with a NC contact and the emergency telephone indicates this through a corresponding warning signal. A special switching output makes corresponding switched signals available for controlling "Please wait" and/or "Please speak" display panels. If the elevator control supplies a corresponding signal to the emergency telephone, misuse can be avoided through an integrated alarm filtering, if required.
The functioning of the telephone cable and emergency unit can be checked regularly using a programmable timer function. Using optional additional modules (see accessories) this unit can be retrofitted with switching outputs or monitoring inputs.
This unit was submitted for a voluntary check by the TÜV-Rheinland/Berlin-Brandenburg to ensure compliance with the pertinent regulations and was awarded a so-called Beta Security Certificate.
Performance characteristics:
Exchange-supplied emergency telephone for analogue connections
Convenient two-way speech communication (hands-free)
Up to 3 voice units are possible
Alarm button configurable as NC or NO
Input for alarm filtering in accordance with EN81-28
Acoustic alarm signalling
Switching outputs for control panel displays, in accordance with EN81-70
Data protocol for connection to control centre
Recorded announcements for connection to caretaker or janitor
Recorded announcement in the elevator car
Freely configurable inputs and outputs
Interface for configuration through a PC terminal program
Part number: 60 1350...Bild vergrößern
Extension modules
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DC/DC converter
input voltage 9 - 36 V AC/DC
output voltage 5 V DC
Part number: 60 1301
...Bild vergrößern
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