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OWNER’S MANUAL DMM 4650
Description
The DMM 4650 is a signal processor which allows for an universal generation and control of audio signals.
Its main purpose is the installation in electro-acoustic rack systems, but stand-alone applications are
possible as well. The audio signals can consist of alarm, gong, voice messages but also of random
combinations of these sources. The programs were created by Dynacord (preset). Anyway, it is possible
for the user (consulting company, etc.) to modify those programs and store them as user-programs. The
audio input can be mixed with the DMM 4650 internally generated audio signals (e.g. gong signals with
announcements), or given out as priority at the audio output (programmable).
The audio quality of the messages can be selected, depending on memory extension and different user
requirements. With maximum memory extension, a total recording time of 16 minutes is possible.
Password protection for various operation levels is provided. For “EASY-USER”, the provided operation
features are similar to those known from cassette recorders or CD players. The control of the programs
is performed via floating inputs and floating outputs provide status messages. The priorities and functions
of these lines can be programmed individually (Setup). A computer interface facilitates saving and loading
of the unit’s configuration and its message data.
In order to ensure functional reliability, self-surveillance and audio data verification are employed. The
alarm is ignited via internal fault-output while all warnings are logged. The DMM 4650 is maintenance-free
since no serviceable parts, batteries or accumulators are to be found inside the appliance.