Dynacord Stereo System manual Station Control Consoles, Understanding DCS Expansion Options

Power amplifiers and the DCS 400 controller are connected to another independent RS-485 port, which allows direct management of up to 64 power amplifiers and 8 DCS 401.

Connecting a PC is established via serial RS-232 port on the rear panel of the DPM 4000. It is not necessary for the PC to be permanently connected to the DPM 4000.

An additional RS 485-interface offers the possibility to operate several DPM 4000 in a network.

Station Control Consoles

The ProAnnounce system includes 5 different models of DPC 4000 Series paging stations and one paging station extension. All microphone terminals employ gooseneck microphones, 6 or 8 function keys and a covered alarm key. An additional alarm key and a key-locked switch can be retrofitted. The paging stations are available with 10, 20, 30, or 50 selection keys. All models also employ LC-displays (2 lines with 16 characters each).

The following list provides you with an overview of available paging station models:

DPC 4106	6 function keys
DPC 4510	8 function keys + 10 selection keys + alarm key
DPC 4520	8 function keys + 20 selection keys + alarm key
DPC 4530	8 function keys + 30 selection keys + alarm key
DPC 4550	8 function keys + 50 selection keys + alarm key
DPC 4350	paging console extension with 50 selection keys

All consoles include the following common features:

•all functions are processor-controlled

•configuration data is stored in non-volatile FLASH RAM

•condenser microphone with pre-amplifier and compressor / limiter circuitry

•freely programmable key-assignment

•easy key-labeling through label-strips and MS WORD™ templates

•analog circuitry surveillance via integrated pilot tone generator

•processor surveillance via watchdog function

•line surveillance via pilot tone and polling functions

•covered alarm key (not with DPC 4106)

•additional alarm keys or key-locked switches can be optionally retrofitted

•connection of an external PTT-microphone or audio source

•piezo buzzer for acoustical alerts

•an optional loudspeaker can be retrofitted

•setup-mode allows direct parameter setting at the paging station

•two-line LC-display

All paging consoles are processor-controlled and extensive monitoring functions are provided. The watchdog function monitors the processor system while a switchable pilot tone generator monitors the audio section. Additionally, the internal supply voltage is constantly measured. When it falls below a critical threshold an alert message is being displayed. The line surveillance function recognizes any line-interruption and/or short-circuits in the audio and RS-485 control cabling. Upon the detection of failure a corresponding message is displayed.

Understanding DCS Expansion Options

The ProAnnounce™ DCS expansion system uses a variety of cards for control, monitoring, and routing purposes. These cards are available in two versions. The standard DCS 4xx versions are circuit cards or modules that mount on standoffs and interconnect via flat ribbon cables. The DCS 4xxR cards are identical in function to the standard cards, but use a card cage with a backplane for interconnection. The ProAnnounce™ Designer software only refers to the standard DCS 4xx cards, however they are interchangeable.

ElectroVoice/Dynacord BGM Guide Page 26