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Summary of Contents for Crystal Vision DDAA246
- Page 1 DDAA246 SDI to composite monitoring encoder with distribution amplifier Crystal Vision Ltd., Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England. E-mail: sales@crystalvision.tv Website: www.crystalvision.tv Tel: +44(0) 1223 497049 Fax: +44(0) 1223 497059...
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Page 2: Table Of Contents
Rear module connections with RM02 Rear module connections with RM01 3.2 General purpose interface 2U frame GPI Connections 1U frame GPI connections DTB GPI connections 3.3 Configuration Changing the standard selection mode 4 Problem solving 5 Specification 20/09/05 DDAA246 User Manual V1.10... -
Page 3: Introduction
Crystal Vision Introduction 1 Introduction The DDAA246 is a dual 8-bit Serial Digital to Analogue Composite converter with re- clocked serial and analogue outputs. The universal connection system allows a mixture of Crystal Vision modules in the frame. The modules plug in the front and the rear connectors plug in the rear. Depending on frame design, a hinged or removable front panel reveals LED indication of input and PSU status when opened. - Page 4 GPI/LED input presence indication • Auto or manual PAL 625/NTSC 525 line selection • VBI blanked or unblanked • Modulated ramp test pattern or serial input • NTSC setup on/off and chroma bandwidth select • Card edge control 20/09/05 DDAA246 User Manual V1.10...
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Page 5: Card Edge Operation
Crystal Vision Card edge operation 2 Card edge operation The front edge of the DDAA246 card provides power rail monitoring, signal status, gain adjustment and configuration switches. DDAA246 front edge view The 8-way front edge switch provides access to the following: •... - Page 6 Adjusting input gain Composite gain is continuously variable by ± 10% using the GAIN control. The DDAA246 is supplied with a factory-set gain of 0dB. Cable equalisation Cable equalisation is adjusted automatically for up to 200 meters of Belden 8281 or equivalent.
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Page 7: Hardware Installation
The DDAA246 may be used with the RM01 single slot rear connector, the RM02 quadruple slot rear connector and the 18 double slot rear connectors. -
Page 8: Rear Module Connections With Rm02
Serial Digital Input channel A SDI(A) IN Re-clocked Serial Digital Output channel A SDI(A) OUT NTSC/PAL A Composite Video Output channel A SDI(B) OUT Re-clocked Serial Digital Output channel B SDI(B) IN Serial Digital Input channel B 20/09/05 DDAA246 User Manual V1.10... -
Page 9: General Purpose Interface
The external GPI control lines 'a' to 'f' at the frame remote connectors may be used to control the DDAA246 remotely with remote switches emulating some of the front panel switches. The GPI lines are normally pulled up on-board to +5V via 10kΩ and will withstand up to +35V. -
Page 10: Frame Gpi Connections
GPI lines ‘a’ to ‘f’ of each card connect to the rear remote connector as follows: Slot no. ‘a’ pin ‘b’ pin ‘c’ pin ‘d’ pin ‘e’ pin ‘f’ pin Note: Remote connector is 15 way normal density D-type socket. Frame ground is pin 15. 20/09/05 DDAA246 User Manual V1.10... -
Page 11: Configuration
Jumper links are provided for the following settings: • PL4/5– manual/AUTO standard selection DDAA246 showing configuration jumpers Changing the standard selection mode With PL4 in the AUTO position, SDI A will automatically adjust to the 525- or 625-line video standard of the incoming Serial Digital data. With PL4 in the MANUAL position the video standard for SDI A will be set by the front panel DIL switch or GPI control. -
Page 12: Problem Solving
Crystal Vision Problem solving 4 Problem solving The front edge of the card provides useful power rail monitoring in addition to card-edge controls and status LEDs. DDAA246 front edge view LED indicator assignments Colour Meaning when lit INPUT A Green (bottom) - Page 13 If required, the card may be reset by simply removing the rack power and re-applying power after a few seconds or by removing the card from the rack and then re-inserting the card It is safe to re-insert the card whilst the rack is powered 20/09/05 DDAA246 User Manual V1.10...
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Page 14: Specification
Modulated ramp GPI lines Inputs: 6 ( D-type on frame ) 4 inputs: SDI 1: Standard select, VBI blank/unblank SDI 2: Standard select, VBI blank/unblank 2 outputs: SDI1 input present, SDI2 input present Status monitoring 20/09/05 DDAA246 User Manual V1.10... - Page 15 Statesman enabled only 1U Desk top box for up to 2 modules RM01 Single slot rear module with 6 BNCs RM02 Quad slot rear module with 27 BNCs for 3 boards RM18 Dual slot rear module for 1 board with 12 BNCs 20/09/05 DDAA246 User Manual V1.10...
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