▶ Railroad cable/wireless broadcasting integrating system
 
 
 
   
 
The railroad cable/wireless broadcasting integrating system is a broadcasting system necessary to induce and guide passengers  which should be installed in each station and linked with fire  broadcasting, distant command broadcasting, train destination guiding broadcasting and  BGM equipment where broadcasting levels and priorities can be controlled and monitored remotely from distant control devices and guiding broadcasting devices and emergency interphones connected with cables  can be used for guiding broadcasting or emergency interphone calls from anywhere in the compound using walkie-talkies
 
 
● Wireless broadcasting
 - Broadcasting to individual areas  or to the entire station can be done through simple operations of walkie-talkies
 - If emergency interphones are called , sensing signals will be detected and  the call will be automatically connected  for conversations
 - Through the operation of the control key on the front LCD, voice signal input/output levels are identified and controlled
 - Crossing and malfunctioning due to wireless communication are  prevented (code value input method, RFID detection method)
 -Broadcasting priority setting and channel expansion
 - Distant place monitoring  programs are supported(Ethernet communication), linkage by zone


● Railroad broadcasting
 -  Automatic fire alarm sound  transmission, automatic voice broadcasting and emergency manual broadcasting are possible
 - Broadcasting programs set in accordance with priorities  are broadcasted
 - Audio input and output level distant control system or station main controller digital control
 - The  main amplifier  is a digital type  which is an environment friendly device with power consumption reduced to 50% of analog types
 -  Distant place power control function(TCP/IP  communication)
 - When the commercial power source is blocked, the power supply is automatically switched to UPS power and when the commercial power source is recovered, the power  supply from the commercial power source can be  recovered.
 
 

Wireless broadcasting

• Wireless broadcasting interface device
   - Voice and control signal input/output are at least 8CH respectively
   - Walkie-talkie interface function
•  Program selector(broadcasting priorities)
   - Input/output are at least 8CH respectively
   - Individual and group priority control
•  Emergency interphone interface device
   - Channel : at least 20CH(channels are expandable)
   - Input/output mode : 2 line/4 line mode
   - TOT function, VOX detection function
•  Antenna channel distributor
  - 4IN 8OUT, 1IN/OUT(dedicated transmitter/receiver ports are provided)
  - Splitter/Distributor function
•  Power distributor
   - Input voltage AC220V, DC24V Battery
   - Output voltage AC 220V 2CH, DC 24V 11CH
•   DC power supplier
   - Input : AC22V/DC24V, output : DC13.8V 8CH
•   Wireless transmitter/receiver, walkie-talkie
   - VHF/UHF band, output 4.8W or lower,  at least 16CH

Railroad broadcasting

•   Preamplifier
   - Input channel : at least 8 ports
   - Sound quality can be adjusted channel by channel
•    Fire interlocked alarm generator
   - P type control channel : at least 10CH
   - R type control channel : RS-422 or RS-485
•   Command broadcasting interface
   - Digital mode TCP/IP control and audio broadcasting
•    Priority controller
  - Main controller and remote control operation in electronic volume control methods
  - Control method : processor (built-in program type) control method
•   Main controller
   - Speaker output signals are converted into digital signals for monitoring
   - Number of data communication input/output channels : 4CH
•    Main digital amplifier
   - Output : 70W(max. 100W), parallel configuration
   - Power consumption is reduced by 50% compared to analog  amplifiers