Fiber Optic Link              
                    
~ Fiber Optic Transmission Systems ~

     --< Introduction >--

        * We are an ISO 9001 Certified Company, designs & manufactures
           
the Fiber Optic CCTV Security Links for transporting Video/Audio/Data
           over one single fiber core up to
128 channels, the main applications
           of which are
ITS, FTMS, IBS, Airports, Railroads, Subways, etc.
       * Its world unique
16/32 Optical Ring-type Link with NMS can
           transmit
16/32 different Video/Data signals & Ethernet up to
           320KM (Max. 960KM) over one single fiber core without any repeaters.
       *
Video/Data Multiplexer with NMS, which consists of 4/8 nodes,
           can also transmit maximum
64/128 channels of Video & Data
           over one single fiber core
up to 80/60 KM between each node.

     --< Features >--     

       * Video, Audio and Data Transmission through
           fiber optic line
              - Single mode :  Transmission signals from 4km up to maximum 80km
              - Multi-mode : Transmission signals from 2km up to maximum 10km  
       * Simultaneous Transmission of Multi-channel Video, Audio and Data
          over 1 core(WDM) of fiber optic cable.
              - 16 channel video image transmission up to 80km over 1 strand
                 fiber optic cable for 16 units of camera at the specific area.
              - Diverse Signal Combination for Video/Audio/Data, Video/Audio
                and Video/Data for following Users' requirements.
 
      * Diverse Package with stand-alone, line card, 1U rack and 3U Chassis
          for easy installation
       * Innovative Product by Digital Technology
              - High quality image and reliable performance of long distance transmission
                with digital technology   
              - Complete Isolation of Noise
        * Outstanding customer service & manufacturing reliability.

   --< Comparison between Coaxial & Fiber Optic >-

 Item

 Coaxial Transceivers

 Fiber Optic Transceivers

 Transmission  Distance

 Need to install relay station with  using amplifier for 70mtrs above  transmission

 100km Max transmission
 without  relay equipment

 Transmission  Performance

 Sensitive on Environmental
 changes

 High Quality Video Image
 and None  Data Error.

 Inducing Noise

 Change of characteristics,
 Error and  Signal distortion

 Free from EMS and EMI

 Bandwidth

 Base band: 10~12MHz
 Broad band: 300~400MHz

 10Hz ~Several GIGA Hz

 Speed of  Transmission

 2M bit per second

 100 Gigabit per second

 Channel

 One Channel

 Multi-Channel

 Strength/
 Weak point

 

 * Electro Magnetic Trouble
 * Very often Signal Attenuation &    Signal delay by following    Frequency
 * High speed & Big capacity     transmission Impossible
 * Big Cable size and heavy weight

 * Possible to transmission of high     speed and Big capacity
 * Small size and light weight Cable
 * Free from  EMI and EMS
 * Low signal attenuation and signal     delay by following Frequency

 -< Copyright (C) 1998-2004, Domy & Co. >-
   -< Up-Loaded on Dec. 16, 2004 >- 

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