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SYSTEM DESCRIPTION
PROANNOUNCE System User Handbook 1.1 3-3
3.5 Paging Stations
The DPC 4000 Series paging consoles are mainly meant for transmitting voice messages and calls but also to
manually control the PROANNOUNCE system. Available paging station functions are: line/group selection, voice
messages, program assignment, launching gong and alarm signals, and reproduction of voice message memory
announcements. Additionally, special commands include volume control, monitor selection, preset switching, lighting
control, function status indication, etc. Thus, it is possible to configure the paging consoles to serve as operation panels
for general control purposes.
If a voice call is being launched into a speaker line that is already busy with other audio transmissions, the caller gets a
busy-sign, i. e. the BUSY-LED blinks. In case the calling terminal has a higher priority it will interrupt any messages
from other paging stations or audio signals with lower priority levels. Interruption does not take place uncontrolled
anymore. Before actually interrupting a transmission, the blinking LED indicates that a line or group is busy when
selecting a destination, leaving the choice to the operator, whether he/she immediately wants to interrupt or wait upon
the conclusion of the momentary reproduced program.
3.6 Control Inputs And Outputs
By using the control inputs, it is possible to link the PROANNOUNCE system to fire alert systems, burglary alert
systems, or to a central operating desk. It is also possible to connect external switches, breakers, rotary controls or
rotary encoders, respectively to query control outputs of external units (power supplies, power amplifiers, …).
The control outputs allow switching external devices ON or OFF, trigger signals and events, switch monitor sources,
remote control doors, gates or shutters, generate analog signals for the control of multimedia systems, etc.
A total of 130 control inputs for logic levels, 128 control inputs for analog levels, 16 inputs for rotary encoders, 127
logic-control outputs, and 128 analog-control outputs are usable.
3.7 Clock / Calendar
The PROANNOUNCE manager DPM 4000 has an integrated quartz-controlled real-time clock which can be set for
radio-controlled DCF 77 operation using the optional antenna (DCF 77 tuner NRS 90193). The system clock
automatically recognizes leap years and, if in DCF 77 mode, automatically switches between daylight saving time and
standard time.
The system clock provides the possibility to control up to 40 external slave clocks. For this purpose, the DPM 4000
employs a special, short-circuit-proof output for pole changing impulses. Slave clocks are automatically re-
synchronized whenever a time difference to the system clock is detected; like for instance in cases of power outage or
when time values were entered manually.
It is possible to activate pre-set functions like break-gong signals, background music, remotely controlled gates, switch
lights ON/OFF, etc. when using system clock and calendar function together All the functions mentioned before can be
programmed for specific days; but also hourly, daily, weekly, monthly, and yearly activation is possible. Up to 500 time-
controlled events can be programmed.
3.8 Monitoring
The PROANNOUNCE manager DPM 4000 embodies a monitor amplifier with headphones/speaker output. The
integrated logic-switching circuit provides the opportunity to listen to the signals of any internal input and output.
Assigning external sound sources to the monitor bus is possible as well. This additionally allows monitoring amplifier
outputs or pre-listen to the contents of external voice message memories and other audio devices.
The remote control’s wiring already includes all the cabling necessary for the pre-/post-listen feature when using
remote-controlled amplifiers.
When using the DCS 420 PROANNOUNCE MONITOR MANAGER, easy programming and operating is available. See
also chapter 5.4.7