Index
1. TECHNICAL DESCRIPTION.........................................................................................................1
1.1 Features......................................................................................................................................1
2. CONTROLS.....................................................................................................................................2
3. CONNECTIONS..............................................................................................................................3
4. TECHNICAL SPECIFICATIONS...................................................................................................4
Illustration Index
Illustration 1: Controls..........................................................................................................................2
Illustration 2: Connections...................................................................................................................3
Chart Index
Chart 1: Connections............................................................................................................................3
Chart 2: Local power connector piout..................................................................................................4
Chart 3: Technical Specifications.........................................................................................................4
1 TECHNICAL DESCRIPTION
The MCA-1N is a high performance digital paging station for professional PA/VA systems
that fulfill the EN 60849 standard.
The sound processing has been configured to achieve high quality results on the paging of
voice, in terms of distortion, sensitivity, bandwidth and signal/noise ratio. The MCA-1N
includes as well a high quality microphone capsule.
It can be controlled and supervised through an Ethernet network with the LDA Software
SIME. It features functions such as “call-all” button, busy line signal, permission to speak
granted and a display to show the state of the microphone and the system.
It has an iron chassis to provide a superior stability and protection against damages. All
buttons are designed for an intensive use and the main talk-button is made of stainless
steel.
1.1 Features
•It can be controlled through Ethernet network.
•High performance microphone capsule.
•LED indicator and display of the microphone and auxiliary system states.
•Configurable contact relay for auxiliary system.
•Indicator of busy zone, conceded word, busy auxiliary system and server
disconnected, system fail.
•Local power supply.
•Integration with EN 60849 LDA SONORA system
•Monitorization and configuration with the LDA SIME software.
1 LDA Audio Tech - Severo Ochoa Nº 31- 29590 MÁLAGA, ESPAÑA. Tlf: +34 952028805
USER'S MANUAL – MCA1NS01
2 CONTROLS
Display: Shows this information:
Wellcome menu: LDA MCA-1N
Line activity menu: Conceded word, Busy line.
Error menu: Server Offline, Error microphone capsule, Aux. System offline, Failure
in ISL or loudspeakers, failure in the audio matrix, others failures send by the
server.
Information menu of the system currently being used: Aux. System online.
System Fail: It will turn red if the system fail.
Conceded word: It will turn green when the server paging grant us permission to speak.
Busy Line: It will turn red if the areas are busy by another MCA with higher priority.
Talk Button: Push to talk. If the conceded word indicator turn green, you can talk.
LDA Audio Tech - Severo Ochoa Nº 31- 29590 MÁLAGA, ESPAÑA. Tlf: +34 952028805 2
Illustration 1: Controls
3 CONNECTIONS
1. Microphone gain setting.
2. Audio and emergency system connection:
5V REMOTE TEST AUX_ON BUSY MAN GND A+ A-
o o o o o o o o
Chart 1: Connections
•5V REMOTE: Remote 5V power supply.
•TEST: Offline.
•AUX ON: Offline.
•BUSY: Busy Signal input, active at 0V.
•MAN: Contact relay for emergency system (0V).
•GND: Ground Reference (0V).
•A +: positive balanced audio output.
•A-: negative balanced audio output.
3 LDA Audio Tech - Severo Ochoa Nº 31- 29590 MÁLAGA, ESPAÑA. Tlf: +34 952028805
Illustration 2: Connections
USER'S MANUAL – MCA1NS01
3. DIP SWITCH: Select the IP address of the MCA-1N desk microphone by setting the
last 8 bits of the address. The IP address of a MCA-1N microphone will be: 192.168.0.XXX
Where XXX is the number that conrresponds to the 8-bit hexadecimal configuration.
NOTE: The ON position means 0, and the OFF position means 1. The most significant bit
is the switch no1 and switch no8 is the bit with less weight.
4. LOCAL POWER CONNECTOR: The MCA-1N works with a local power supply of 5V
to be connected to this connector. The connection must follow pinout:
GND 5V
o o
Chart 2: Local power connector piout
5. Ethernet connector: For connection to the PA server.
4 TECHNICAL SPECIFICATIONS
Model LDAMCA1NS01
Power supply 5Vdc, 500mA.
Frecuency response 200 – 15000 Hz (+/-2dB)
Output audio 750mV 600 J balanced
Signal/noise ratio 100 dB (A weighting)
Sensitivity -70 dB. At 1KHz
Directional axis Axial with hipercardiod polar diagram
response.
Kind of transducer Dynamic with moving coil.
Dimensions without flexible lamo 131 x 60 x 173 mm (WxHxL)
Flexible lamp long 250 mm
Consumption 2,5W
Chart 3: Technical Specifications
LDA Audio Tech - Severo Ochoa Nº 31- 29590 MÁLAGA, ESPAÑA. Tlf: +34 952028805 4
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