DIDX010 - BALBOX RS232 Data Inserter/Extractor

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ÃÖ´ë µ¥ÀÌÅÍ ÃßÃâ ¼Óµµ : 19,200b/s
Local/GPI ÄÁÆ®·Ñ
ÀÔ·Â : 1 x SDI, RS-232
Ãâ·Â : 2 x SDI  
DIDX010 - BALBOX RS232 Data Inserter/Extractor.

The DIDX010 allows RS232 data to be transported within SDI video signals. The insertion method allows the data to survive subsequent MPEG compression, particularly through MPEG encoders which can handle VBI as video. The user may chose where the data is carried within the SDI. Two SDI outputs are provided. RS232 data may be input at 9,600bps or 14,400bps, and extracted data is output at 19,200bps. The output data rate must be higher than the input data rate as the SDI link does not provide the usual RS232 handshaking mechanisms. Each unit may be set by the user to insert or extract data. One unit will be required at each end of the link. By cascading two or more units it is possible to achieve redundancy, or increase the data capacity. The units will not interfere with embedded audio data. A bypass relay is incorporated to route the SDI input to the ¡®main¡¯ SDI output to ensure signal continuity in the event of power discontinuity, or under user control. The DIDX010 is housed in a robust case designed to be free-standing but up to four BALBOX style units can be mounted in a 1U high tray. The unit has an integral mains power supply.


SDI INPUT CHARACTERISTICS
Input signal 270Mb/s serial digital video to SMPTE RP259M
Line standard: 625/50 or 525/60 automatically detected
Cable equalization: up to 250m of Belden 8281 coaxial cable or similar
Input impedance: 75 ohm terminating
Input return loss: >15dB
Input connector: BNC socket

DATA CHARACTERISTICS
Data format: 8bit, no parity, 1 stop bit (2 stop bits at 14,400b/s).
Data connector: 9way sub-miniature D-type socket, with screw-locks.
Input rates: 9,600b/s (1stop bit) or 14,400b/s (2 stop bits)
Extraction rate: 19,200b/s

SDI OUTPUT CHARACTERISTICS
No of outputs: 2
Output signal 270Mb/s serial digital video to SMPTE RP259M
Bypass: Power fail/user select between SDI input and main SDI output
Output impedance: 75 ohm
Output return loss: >15dB
Output connectors: BNC socket x 2

CONTROLS
DIP switches: Manual bypass
Insert/Extract
9,600/14,400b/s
Rotary control: Insertion point selection
INDICATORS
LED 1: Bi-colour, status
LED 2: Power

INSTALLATION DATA
Package: Standard BALBOX housing, with three 75ohm BNC signal connectors and
one 9w D-type socket.
Size: 184 x 103 x 42.4mm.
Weight: 950g.
Mains supply: 90 – 250Vac
Consumption: <15VA

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