Product Manual QMOD-SDI QMOD™ HD-SDI Modulator July 17, 2014 Control Firmware Ver 5.
Table of Contents Table of Contents ................................................................................................................................ 2 Overview ............................................................................................................................................. 3 Features................................................................................................................................................. 3 Integration ........................
Overview CR QMOD™ technology is opening the door to new HDTV applications. Create your own on-site HDTV broadband distribution system using a variety HD, SD, and AV sources with the Contemporary Research QMOD-SDI HDTV Modulator. No matrix routers or IP resources required, just tune in with standard displays or CR HDTV tuners.
Specifications Physical Front Panel Encoding Modulation Latency Compliance Power Real Panel RS-232 Closures SDI Input Video Inputs Audio Inputs RF Out Includes Options Firmware Size: 8.5” [216mm] wide x 1.75” [44mm] height (1RU) x 6.0” [153mm] deep Weight: 1.5 lbs [0.
Front Panel Setup There are a number of parameters that can be set by front-panel Setup commands.
In most applications, the basic settings on the previous page will work fine with all displays. Of course, there are exceptions to every rule that often arise with older displays with archaic firmware, which is why we offer a variety of encoder options and settings. A few examples include: Older LG sets need to see the MPEG stream encoded at 18 Mbps (19.4 Mbps total). Newer displays don’t need channel data, older sets need to see the CVCT data table.
Tips & Troubleshooting Common Symptoms Symptom QMOD constantly resets – analog inputs QMOD SDI switches to background color during setup or occasionally. QMOD channel tunes fine connected directly to a TV, but not when combined with in-house RF system.
General Symptoms and Solutions Symptoms Solutions Green screen That’s good news – it means the TV is receiving the channel from the QMOD. The green (or blue, purple) background means that there is no video input or the resolution of your source doesn’t match the QMOD settings. Reset the QMOD by pressing the Left and Right arrows together.
Inserting a QMOD channel that emulates a Cable Guide Channel This is a solution that we’ve employed for Comcast applications; we’ll add verification for other cable systems as they arise. In the case of Comcast, the receiver’s internal “map” shows the Guide how to match up physical channels and the specific Program carried by each QAM digital stream. Unlike a TV tuner, a cable box doesn’t care about the virtual ID of a specific channel and program, such as 98-315.
RS-232 Control Protocol Overview The QMOD-SDI full duplex RS-232 enables a system programmer to control all functions as well as monitor status. All commands are sent as ASCII strings. No delays between characters or commands are required, as data is interrupt driven and buffered. One QMOD-SDI may be daisy-chained together with a CR 232-series tuner from a single RS-232 port. The QMOD-SDI is pre-set to Unit 1, and the tuner would be set to Unit 2.
RS-232 Commands Control Commands Code Function Operation X9= Video Input X8= HD Video Format F4= Video Bitrate (Mbps) F8= Audio Input for Video/S-Video F9= Audio Input for YPbPr F7= Audio Input for SDI TC= S0= Channel Cable Format X2= No Video Background F5= F2= Trigger Level ( YPbBr) QAM Type F0= DB Level level from 1..
Terminal Communication Commands EF EN Echo Off Echo On ID Z! Product ID Zap Contemporary Research Characters received will not be re-transmitted (power up default). Characters received will be re-transmitted. Example: ‘>EN’ Characters received will be re-transmitted. Returns the product model number and software version.
RS-232 Cable Connections Single QMOD-SDI RS-232 wiring for control or programming should only use pins 2, 3, 5. Cables with all pins wired can lock out front-panel programming and data communication (Pins 4 and 9 are inputs). QMOD-SDI Daisy-Chain One QMOD-SDI and 232-series tuner can be controlled from one RS-232 control port. The QMOD-SDI will be Unit 1, and the 232-series tuner will be set to Unit 2.
Rack Mounting Three options are available for rack-mounting QMOD modulators RK2 Dual Rack Kit with Tie Bar Mounting New QMOD and QCA enclosures have a slot in the bottom middle of the case. This will accept a tie bar that will lock the two enclosures together without taking the cases apart . 1. 2. 3. 4. Check that your enclosures have the tie bar slot. Slide the included tie bar into the side of one unit and attach with the included screws.
Safety Instructions Read before operating equipment. 1. Cleaning - Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning. 2. Power Sources - Use supplied or equivalent UL/CSA approved low voltage DC plug-in transformer. 3.
Limited Warranty and Disclaimer Contemporary Research Corporation (CR) warrants this product to be free from defects in material and workmanship under normal use for a period of two years from the date of purchase from CR. Should such a defect occur CR will repair or replace, at their option, the defective product at no cost for parts or labor. This warranty extends to product purchased directly from CR or an Authorized CR Dealer.
