GPRL016 - BALBOX GPI Inserter / Extractor with Voltage-free Contacts
ÃÖ´ë 16°³ÀÇ GPI ½ÅÈ£¸¦ ÀÔ·Â¹Þ¾Æ À̸¦ SDI ½ÅÈ£¿¡ ½Ç¾î¼ ºñµð¿À ½ÅÈ£¿Í °°ÀÌ ¼Û¼ö½Å ÇÏ´Â Àåºñ SDI ½ÅÈ£³»ÀÇ vertical blanking interval À¸·Î Àü¼Û Local/GPI ÄÁÆ®·Ñ ÀÔ·Â : 1 x SDI, 16 x GPI Ãâ·Â : 2 x SDI
GPRL016 - BALBOX GPI Inserter / Extractor with Voltage-free Contacts |
The GPRT016 allows up to 16 GPI signals to be transported in one line of the vertical blanking interval of an SDI video signal. Two SDI outputs are provided. The unit may be set by the user to insert or extract data. In the insert mode, the inputs are simply 16 contact closures. In the extract mode, voltage-free relay contacts outputs are provided (both NO and NC). Two units are required to provide a GPI link. A bypass relay is incorporated to route the SDI input to the ¡®main¡¯ SDI output to ensure signal continuity in the event of power failure, or under user control. By cascading two or more units it is possible to achieve redundancy, or embed more than 16 GPI signals in one SDI signal. 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
GPI CHARACTERISTICS No of circuits: 16. Inputs (in insert mode): Contact closure to ground (must be held closed for at least 20ms) Outputs (in extract mode): Voltage-free NO/NC relay contacts (48V /100mA max). GPI Data connector: 50way sub-miniature D-type socket, with screw-locks.
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 Rotary switch: VBI Insertion line selection (7 to 22) INDICATORS LED 1: Bi-colour, status LED 2: Power
INSTALLATION DATA Package: Standard BALBOX housing, with three 75ohm BNC signal connectors and one 50w D-type socket. Size: 184 x 103 x 42.4mm. Weight: 950g. Mains supply: 90 – 250Vac Consumption: <15VA |
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