User manual DRAKE DIGITAL DD860

[. . . ] The DD860 normally provides two 75 Ohm, serial ASI outputs. A parallel SPI output is available on special order. Front panel signal to noise ratio and staus indicators are provided. A low phase noise tuner design provides reliable operation with dense signal constellations such as 256 QAM or 16 VSB. [. . . ] R2 - DC Power Connector This is the power input connector. Connect to a Drake PS8 or equivalent power supply. R3 - BNC Connectors (ASI output model) These are the MPEG2 transport stream outputs. The ASI (Asynchronous Serial Interface) Output Impedance is 75 Ohms. R4 - 25 Pin SPI LVDS OUTPUT Connector (SPI output model) This is the MPEG2 transport stream output. The DVB Synchronous Parallel Interface levels comply with low voltage differential signalling specifications. R. L. DRAKE COMPANY 230 INDUSTRIAL DRIVE FRANKLIN, OHIO 45005 U. S. A. CUSTOMER SERVICE AND PARTS TELEPHONE: +1 (937) 746-6990 TELEFAX: +1 (937) 743-4576 WORLD WIDE WEB SITE: http://www. rldrake. com TM is a trademark of the R. L. Drake Company P/N: 3852380A-1-2003 Printed in the U. S. A. ® is a registered trademark of the R. L. Drake Company © Copyright 2003 R. L. Drake Company 3 INSTALLATION The DRMM12 frames should be spaced apart vertically by at least 1 3/4" wherever possible. Air movement is mandatory in enclosed rack cabinets. Excessive heat will shorten component life. DD860 CHANNEL SELECTION / CHANNEL CHARTS OFF-AIR The front panel channel selection switches are used to select the mode of demodulation, the desired band plan (CATV or Broadcast) and the specific channel number. Four blocks of 133 channels each are allocated to CATV channels and two blocks of 68 channels each are allocated for off-air broadcast frequencies. CATV channels in 64 QAM modulation are selected using switch settings 002 through 134. These switch settings correspond directly to the EIA CATV channel numbers. CATV channels in 256 QAM modulation are selected using switch settings 202 through 334. To determine the switch setting, add 200 to the desired EIA CATV channel number. 13 SPI LVDS OUTPUT 4 4 8VSB DD860 Channel 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 All connections to and from each module are made through the rear panel. Refer to Figure 4 for correct cable and wiring connections. RACK MOUNTING Adequate ventilation is very important in multichannel installations. UHF BROADCAST CHANNELS Channel Number 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 Center of Channel Frequency (MHz) 473 479 485 491 497 503 509 515 521 527 533 539 545 551 557 563 569 575 581 587 593 599 605 611 617 623 629 635 641 647 653 659 665 671 677 683 689 695 701 707 713 719 725 731 737 743 749 755 761 767 773 779 785 791 797 803 PS8 POWER SUPPLY POWER SUPPLY CABLES DD860 DEMODULATOR UNIT RF INPUT 13 SPI LVDS OUTPUT 4 RF INPUT ASI TRANSPORT STREAM OUTPUT 25 13 SPI LVDS OUTPUT 4 RF INPUT ASI TRANSPORT STREAM OUTPUT 25 ASI TRANSPORT STREAM OUTPUT 25 POWER 12V GND 5V 14 1 POWER +12 V GND +5 V 14 1 POWER +12 V GND +5 V 14 1 +12 V GND +5 V 90-260 VAC DC OUTPUTS X 8 CATV channels in 8 VSB modulation are selected using switch settings 402 through 534. [. . . ] To obtain such warranty service, the original purchaser must: (1) Retain invoice or original proof of purchase to establish the start of the warranty period. DRAKE COMPANY or the nearest authorized service facility, as soon as possible after discovery of a possible defect, of: (a) the model and serial number, (b) the identity of the seller and the approximate date of purchase; and (c) A detailed description of the problem, including details on the electrical connection to associated equipment and the list of such equipment. DRAKE COMPANY or the nearest authorized service facility, or ship the same in its original container or equivalent, fully insured and shipping charges prepaid. Correct maintenance, repair, and use are necessary to obtain proper performance from this product. [. . . ]