Contemporary Research QMOD-SDI User manual

Contemporary Research 1 QMOD-SDI
Product Manual
QMOD-SDI
QMOD™ HDTV Modulator
December 4, 2011
Control Firmware 4.5
Encoder Firmware 02E5

Contemporary Research 2 QMOD-SDI
Table of Contents
Table of Contents ................................................................................................................................ 2
Overview ............................................................................................................................................. 3
Features................................................................................................................................................. 3
Integration ............................................................................................................................................ 3
Specifications...................................................................................................................................... 4
Front Panel Setup ............................................................................................................................... 5
Front Panel Menus.................................................................................................................................... 5
Tips & Troubleshooting ....................................................................................................................... 7
Common Symptoms.................................................................................................................................. 7
General Symptoms and Solutions............................................................................................................... 8
RS-232 Control Protocol ................................................................................................................... 10
RS-232 Commands............................................................................................................................ 11
Control Commands ..................................................................................................................................11
RS-232 Cable Connections................................................................................................................ 13
Single QMOD-SDI ....................................................................................................................................13
QMOD-SDI Daisy-Chain............................................................................................................................13
Rack Mounting .................................................................................................................................. 14
RK1 Single Unit Rack Mount .....................................................................................................................14
RK2 Side-by-Side Rack Kit ........................................................................................................................14
RK2 EZ Dual Rack Kit, Independent Mounting ...........................................................................................14
Safety Instructions ........................................................................................................................... 15
Limited Warranty and Disclaimer ..................................................................................................... 16

Contemporary Research 3 QMOD-SDI
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.
Compact and easy to integrate, the QMOD-SDI accepts SDI, Component, or S-Video/Composite NTSC, converts the audio
and video to a digital cable channel, and amplifies for distribution through broadband cable system. Innovative in design
and value, the QMOD-SDI opens the door to cost-effective distribution of HD-SDI broadcast sources and live video, digital
signage, HD subscriber sources, and EAS emergency AV, using existing broadband coax cabling in sports, retail and
entertainment facilities, corporate offices, colleges, schools and worship centers. Front-panel buttons and text menu
display simplify QMOD-SDI setup, with options for 2-way integration with custom control systems.
Features
Auto-senses digital HD-SDI (1080i/720p) and SD-SDI (480i)
Inputs analog Component, S-Video and Composite video
Employs pro-grade HD encoding that minimizes artifacts for motion video and signage “tickers”
Merges embedded audio with video from SDI, analog stereo, digital optical and coax inputs
Switches between SDI, Component, and video inputs
Creates an HD 720p/1080i or SD 480p/480i MPEG-2 stream with MPEG1 stereo audio for broadcast
Delivers a fully agile QAM 64/256 digital cable channel 2-135
Amplifies for distribution over an on-site broadband cable system with adjustable output level, compatible with
all cable format broadband systems
Sets up with front-panel buttons and easy to use menus, including inputs, encoding, channel, and RF options
Allows creation of two-part (XX-XX) and single-part (XXX –emulates Guide channel ID) virtual channels
Responds to GPI inputs to switch to EAS composite video and audio
Integrates with RS-232 control and feedback with simple ASCII commands
Saves power and rack space using efficient design, fan-free cooling, and compact enclosure
Includes compact switching power supply
Mounts in optional 1RU single (RK1) or dual (RK2) 19” rack kits
Meets RoHS safety and California energy standards
New –Measure menu displays H/V frequency of video input
New –Free option to drive 2-4 QMOD Modulators from a 12 VDC 4A power supply. Check website or CR Sales for info.
Integration
Connect SDI, Component, S-Video or Video source
Connect audio to digital optical, coax, or stereo audio inputs
Select inputs, channel, resolution, and RF output parameters from front-panel menus

Contemporary Research 4 QMOD-SDI
Specifications
Physical
Size: 8.5” [216mm] wide x 1.73” [62mm] height (1RU) x 6.0” [153mm] deep
Weight: 1.5 lbs [0.68kg]
Temperature: +32° to 122° F operating temperature, convection cooled
Mounting: Rack mounting for one or two units side-by-side optional (RK1, RK2)
Front Panel
Power button
Setup, Select and directional buttons for front-panel setup
Menu LCD, 2 lines of 20 blue characters each
Encoding
MPEG2 Profile: MP@HL for HD, MP@ML for SD
1080i, 720p, 480p, and 480i resolution, depending on input
Video Encoding bitrate 18 or 25 Mbps
MPEG1, Layer 2 audio
Modulation
Latency
Switchable 64/256 QAM, J83 Annex B, Interleaving Modes (128,1)
MER 38 dB typical
360 ms@720p, 660ms1080i, includes all processing and tuning
HDTV modulators experience more latency, as the media is converted to
MPEG2 and QAM, then distributed over RF.
Compliance
FCC Class B, ROHS, meets California standards
Power
2.1mm coaxial jack (inside center conductor positive)
0.8 A maximum, 11.5 to 13.5 VDC, 12 VDC typical
Real Panel
RS-232
Closures
SDI Input
Video Inputs
Audio Inputs
RF Out
DB-9 male, RS-232 data link to control system
300 to 19,200 baud (9600 default), 8 data bits, no parity, 1 stop bit
3 GPI Pins in DB-9, selects composite/stereo inputs for EAS
4=1, 9=2, 5=GND
BNC Female
SD-SDI rate 270Mb/s or HD-SDI rate 1.485Gb/s
Coax cable auto-equalizer for SD up to 460m, HD up to 230m (RG6)
Auto-sense 1080i at 29.97Hz, 720p at 59.94Hz, or SD 480i at 29.97 Hz
Video Format YCbCr 4:2:2
Can accept SDI embedded Stereo 48KHz digital audio, Groups 1-4
Component: RCA Y, Pb, Pr (1080i/720p/480p/480i) , 59.94/29.97 Hz
Note: If source outputs Component on a DB-15, use VGA cable to wire to QMOD, set
QMOD to Component
S-Video: Y(Composite), C (Blue Pb) 480i, 29.97 Hz
Composite: RCA female (480i), 29.97 Hz
Digital SPDIF: Coax and TOSlink optical output, PCM 48K sample rate
Analog L and R: 2 stereo RCA female jacks
Inputs assignable to video inputs
‘F’, female, 75 ohm impedance
Agile, channels 2-135 (48-860 MHz), standard, HRC, or IRC spacing
6 MHz bandwidth fits any open channel without interference to adjacent channels
1 KHz resolution, +/- 30 ppm accuracy, +/- 35 ppm stability
29 dBmV typical output power, attenuated in 5 steps, approx 4 dB
Includes
PS12-1 Switching power supply, 1A 12 VDC, fits in typical AC power strips
PS12-4Y 4A power supply with Y cable to drive 2-4 QMODs (free at time of order)
Options
RK1 Single Rack Kit , RK2 Dual Rack Kit
CC-232 RS-232 Cable
Firmware
4.5 Improved composite video operation
4.2 adds analog H/V frequency display on LED screen

Contemporary Research 5 QMOD-SDI
Front Panel Setup
There are a number of parameters that can be set by front-panel Setup commands. In normal operation the
Up/Down arrows select channels, and the Left/Right arrows adjust volume.
Pressing Setup enters the setup menus, shows last menu accessed
Pressing Up and Down arrow keys steps through the QMOD-SDI options
Pressing Left and Right keys steps through options for each front-panel menu
Press Select to save desired option
Pressing Setup ends menu item editing or exits the front-panel setup mode
Front Panel Menus
Menu
Parameters
Basic Settings
In most cases, the menus below will work for most displays at sites.
Video Input
This selects the appropriate input:
- SDI (autosenses 1080i, 720p, 480i)
- YPbPr (1080i, 720p, 480p, 480i)
- Video (automatically uses 480i)
- S-Video (automatically uses 480i)
HD Format
Sets the video resolution Component input. SDI auto-senses; Video and S-Video
inputs are automatically set to 480i.
- 1080i - 480p
- 720p (default) - 480i
Channel
XXX
Left/Right steps through channel numbers (use Left to access high channels)
Cable Format
Standard cable frequencies (default)
HRC –same as Standard, channels 5 and 6 slightly different
IRC –All channel frequencies are different than the standard cable setting
RF Level dB
Sets the output level of the RF output, in dBmV
- 29 (default) -17
- 25 -13
- 21 - 9
Audio Input
Sets audio input for currently selected input (SDI, Component, and Video have separate
audio-follow memory)
SDI G1 –Embedded audio (normal stereo)
SDI G2 –Embedded audio
SDI G3 –Embedded audio
SDI G4 –Embedded audio
Digi (Digital) Optical
Digi Coax
Analog (default)
No Vid Color
Displays a color background with there is no video input, or the resolution doesn’t match the
QMOD settings.
- Orange
- Purple (default)
- Green
QAM Type
Today, most displays are set to tune 256 QAM. If a site has some very old displays, they
might only be able to tune in channels set to 64 QAM. Continuous Wave is often used to test
the channel with a meter.
- 64
- 256 (default)
- CW (Continuous Wave)

Contemporary Research 6 QMOD-SDI
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.
Some displays want to see certain PMT data, while most ignore almost all values.
Menu
Parameters
Quality Settings
These adjust the overall quality of encoding
Sync Trig Lev
This is a cable compensation setting that adjusts output for different Component cables.
To see the difference in quality you’ll need a test chart from a Sencore or other HDTV signal
generator. Adjust using the same cable you’ll use for the installation.
The settings are 1-4, with 2 as the default.
Video Bitrate
This adjusts the quality of the encoded video, in M bits per second. For typical HD
satellite/cable, 18 the best solution, as the receiver’s video output rarely exceeds 12 Mbps,
and old and new display tuners will tune that in. For very good HD video sources, such as
from HDTV studio feeds on SDI or Component, 25 may produce visible improvement. Note
that some older display tuners don’t expect to see a video stream larger than 19.4, and you
may need to go down to 18 for those sets. The lower settings are for special applications and
are rarely used in normal systems.
- 11, 13, 15, 18 (default ) , 25 Mbps
MPEG Metadata
When you work with a variety of displays, old and new, you may need to change the settings
below to assure all tune the channels equally. The settings below select the type of
metadata included in the MPEG video stream.
PMT Type
Program Map Table Presets. This setting includes four presets that include various minor
data we’ve used in past installations. When a display can’t scan the channel, and you know
the other RF settings are valid, try changing the PMT type. This setting is also useful when
most of the sets tune in fine, except for few. Some Samsung sets prefer 3.
0-3 (0 is default)
CVCT
Default Cable Virtual Channel Table
On - Turns on virtual channel and short name in MPEG stream, if present
Changes QMOD display Channel to virtual channel
An “*” will appear at the end of the channel if it is virtual
Off - Turns off CVCT data, changes display back to Channel: <Physical>.1
Tip: Turn off CVCT when creating virtual channel, then turn on when complete. TVs will
need to re-scan to find the channel
EIT
Event Information Table
On, Off (Default)
Default=HDTV-Over Coax [G] (Shows in Guide in HDTV tuners)
Time/Date is fixed. May affect TV’s time and date.
Few displays need this data, generally keep off
Chan Major
Sets the Major portion of dual-part (XX-XX) or single-part (XXX) virtual channel
Press right or left arrow to start editing, use Up and Down arrows to select digit.
When Major is set to “000”, QMOD reverts to <Physical>.<Minor> mode
Chan Minor
Sets the Minor portion of the virtual channel. Set to “0” to use Major as single-part virtual
channel to emulate Guide channel ID.
Press right or left arrow to start editing, use Up and Down arrows to select digit.
Chan Name
Enters channel short name, up to 7 characters. “QMOD” is default text.
Press right or left arrow to start editing, use Up and Down arrows to select character.
Various
Firmware
Shows version
QMOD-SDI VX.X NNNN
VX.X = Control Firmware
NNNN = Encoder Firmware
Touch Right Arrow –J83B XXXXXXXXX=QAM Processor Firmware

Contemporary Research 7 QMOD-SDI
Tips & Troubleshooting
Common Symptoms
Symptom
Solutions
QMOD constantly resets –analog
inputs
Usually, the encoder is resetting because the input video isn’t set to a correct
HDTV resolution or frequency.
Check if your QMOD has V 4.1 or higher firmware, if not, go to
www.crwww.com/downloads.asp, and install new firmware to your
QMOD.
Press SETUP, then arrow up or down and locate the MEASURE menu.
This will display the exact H/V frequency of the source video.
The H/V frequencies should be:
oH:33.715K V: 29.97 for 1080i
oH:44.955K V: 59.94 for 720p
oH:31.469K V: 59.94 for 480p
oH:15.734K V: 29.97 for 480i
You may see small changes in values, especially for horizontal, that do
not affect performance.
If the source is VGA, use a scaler like the TV One iT-C2-400 to conform
the video to a true HD signal. If the source is a scaler, check its manual
to see if it can be set to the correct vertical frequency. Some cameras
with HD Component Out can be set to 60/59.94 Hz.
QMOD SDI switches to
background color during setup or
occasionally.
The SDI input processor constantly tests the quality and resolution of the SDI
input, then auto-syncs the QMOD resolution to match 1080i 27.97 Hz, 720p 59.94
Hz, or 480i 29.97 Hz. If you’re getting a color background, watch the bottom right-
hand corner of the QMOD LED screen for:
“*” symbol – means the quality of the SDI signal is poor quality
“?” symbol – the SDI resolution does not match the above 3 settings.
Usually, the source video might be set for 60 Hz. Change the source
settings to the correct frequency.
QMOD channel tunes fine
connected directly to a TV, but
not when combined with in-house
RF system.
There are several classic caused for this. When you insert the channel into the
house system, there are added interference and level issues.
If you’re mixing with an incoming cable feed, assume there are no
“empty” channels. Usually, your QMOD channel conflicts with an existing
cable channel. Read the QMOD Integration Guide to learn how to use
blocking filters to screen out the offending cable channel.
When your combining the QMOD channel with an existing system, it has
to be set to the right RF level. For example, if the analog channels are
running at 55 dBmV, you’ll need an RF amplifier to raise the QMOD 29
dBmV out to at least 45 dBmV.
Use a digital RF meter.
QMOD channel is Green
Also could be Orange or Purple. This is the color background the QMOD inserts
when there is no or improper video input. This means that the QMOD is working,
the channel is tuned correctly, but there is an input problem. It’s also good test
signal when you set up QMODs before the sources are connected. You can also
feed audio to the QMOD and test that as well.

Contemporary Research 8 QMOD-SDI
General Symptoms and Solutions
Symptoms
Solutions
Status Codes
Appears on QMOD front panel display
SDI Lock
“*” appears at end of bottom line when not locked to SDI signal
“?” appears when SDI is locked but at incorrect resolution or Hz
Virtual Channel
“*” appears at end of top line when QMOD is using a virtual channel.
Encoder Error
“R” appears at top left of front panel display, notes the encoder is resetting:
Usually the VGA or scaler output is not set to 1080i/720p 59.94 Hz
–Use the Measure menu to see the H and V frequency
Press the left and right arrows together to reset the QMOD
If neither fixes the condition, call CR Support
“X” appears, notes there is no communication with the encoder
If you check the Firmware menu, the last 4 characters will likely be
“0000” instead of “02E5”
Call CR Support
No composite video signal
“V” Appears when the QMOD is in Video Input, and no video is
present. Goes away when video is active.
No FPGA firmware (QAM)
“xxxxxxx” appears when you use the firmware loader, or press the
right arrow when you view the firmware version on the QMOD.
V X.X = Control Firmware
02A2 = Encoder Firmware
J83B and following = FPGA firmware
“xxxxxxx” means that the FPGA firmware is incomplete or
corrupted.
Re-install firmware or call CR Support if you can’t update.
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.
Black Screen or No Signal
Reset the QMOD by pressing the Left and Right arrows together.
Component
No video –check input wiring and settings
Tip –you can use RCA to HD15 cable to connect YPbPr
Wrong resolution –set both to match each other
Wrong vertical frequency, source must output 59.94 Hz
Press left and right panel buttons together to reset encoding
PC VGA
PC graphic cards rarely output video-standard HDTV at 720p/1080i, 59.94 Hz
–use VGA scaler
TV One iT-C2-400
Extron DVS-340 (with recent firmware)
Set scaler Hz to 59.94 (some state 60Hz but do 59.94 on YPbPr outputs)
DVD
Check cables and input setting
Some players only output 480p/480i on Component
Try changing Resolution
Tuning Issues
Displays not finding channel in scanning, or have problems locking on to
channel.
Update QMOD Firmware
Check CRWWW.COM for the latest firmware, download, and install.
Update Settings
The update won’t affect your current settings. Make sure you are set to Vid
Bitrate 18, CVCT On, QAM 256, PMT 0.
Test offline
Test a sample TV connected directly to the QMOD to eliminate problems in
the RF system.
No audio
For embedded SDI audio, update to firmware 3.8 or higher. This allows
playback of AES audio that does not use an error correction bit
Check audio inputs and wiring
Set source digital source output to PCM
Some Sharp displays lack the standard QAM codec to play MPEG1 stereo,
those models should be avoided for commercial sites.

Contemporary Research 9 QMOD-SDI
Signage
Digital signage presentation almost always require a scaler to
format the output for HDTV displays
Green Screen
Use VGA scaler, set to 720p/1080i, 59.94 Hz
Edges cut off
Most HDTV displays overscan video, underscan video to fit to
displays
Design signage with safe area
Positioning
Use Up, down, left, right scaler adjustments to fit
Improve thin lines, small text quality
Using a signal generator or test graphic, adjust quality with Sync
TrigLev setting 1-4. The cable can make a difference at this setting,
so use the same cable for testing as you use for the install.
DirecTV
The DirecTV HD receiver default settings can shift resolutions
between 1080i, 720p, and 480p, depending on programming.
HDTV setup
Go to HDTV menu
Select Video and turn Native Mode off
Select Resolution and turn all modes off but 720p
Go to Audio, and turn Dolby Digital off

Contemporary Research 10 QMOD-SDI
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.
Communications parameters (Front Panel Mode 1) are 300 to 19200 baud, 8 data bits, No parity, and 1 stop
bit. Factory default is 9600 baud, Unit#1.
All settings are saved to NVRAM in the QMOD-SDI.
The QMOD will accept non-standard RS-232 control such as voltage that swings from 0 to +5 VDC,
commonly found when IR ports are used to send RS-232 commands.
General protocol specifications
Characters in command strings to the QMOD-SDI are common ASCII keyboard characters.
Command strings sent to the QMOD-SDI begin with the ASCII > (greater than symbol) as an 'Attention'
character and end with carriage return - ASCII CR, Hex $0D, or keyboard Enter - as an 'End-of-command'
character.
Responses from the QMOD-SDI begin with the ASCII < (less than symbol) as an 'Attention' character and
end with a carriage return followed by line feed an ASCII LF or Hex $0A as 'End-of-command' characters.
A carriage return is required at the end of each command and is assumed in all examples.
Command String Structure
[Attention] (Unit#) [Command] (Parameters) [Return]
Attention Single character (>) starts the string
Unit# The Unit# is expressed as an ASCII 0-9 when used in multiple tuner applications.
To address all units, use a Unit # of 0 (Zero)
No unit number will default to Unit#1
Command A two-character command
Parameters Added attributes to some commands
Return A carriage return ends the command string, you may use ASCII CR, Hex $0D, or keyboard
‘Enter’ in programming. For simplicity, the programming examples in the manual will not
show the ‘CR’ – so remember, you’ll need to add it in your control code.
Command and Status Response
Commands can be sent back to back at any time without any delay. To allow for rapid, multiple commands,
status responses are intentionally delayed by about 125mS, sending the most current status in response to
control commands or user actions.

Contemporary Research 11 QMOD-SDI
RS-232 Commands
Control Commands
Code
Function
Operation
X9=
Video Input
2= YPbPr
3= Composite Video
4= S-Video
5= SDI
X8=
HD Video Format
0=1080i
1= 720p
2= 480p (does not apply for SDI)
3= 480i
F4=
Video Bitrate (Mbps)
0 = 18
1 = 25
2 = 11
3 = 13
4 = 15
F8=
Audio Input for Video/S-Video
0= Analog Stereo
1= Digital Coax
2= Digital Optical
F9=
Audio Input for YPbPr
0= Analog Stereo
1= Digital Coax
2= Digital Optical
F7=
Audio Input for SDI
0= Analog Stereo
1= Digital Coax
2= Digital Optical
3= G1 1+2
4= G2 3+4
5= G3 5+6
6= G4 7+8
TC=
Channel
XXX
S0=
Cable Format
0= Standard
1= HRC
2= IRC
X2=
No Video Background
0= Purple
1= Green
2= Orange
F5=
Trigger Level ( YPbBr)
1-4
F2=
QAM Type
0= 64
1= 256
2= CW (Continuous Wave)
F0=
RF Output dbmV Level
level from 1-7
1= 6
2= 9
3= 13
4= 17
5= 21
6= 25
7= 29
G5=
PMT Type
0, 1, 2, or 3
G6=
CVCT
0=Off, 1=On
G7=
EIT
0=Off, 1=On
TV=
Sets Virtual Channel
TV=<major>,<minor> or TV=<major>-<minor>
TV=0 or TV= 0,0 sets to <Physical>.1 mode
TV=0,<minor> sets QMOD to <Physical><Minor>
If CVCT is off, virtual channel is disabled
TN=
Sets Channel Name
TN=<Channel Name> Up to 7 characters

Contemporary Research 12 QMOD-SDI
Terminal Communication Commands
EF
Echo Off
Characters received will not be re-transmitted (power up default).
EN
Echo On
Characters received will be re-transmitted.
Example: ‘ >EN’ Characters received will be re-transmitted.
ID
Product ID
Returns the product model number and software version.
Z!
Zap
Reconfigures unit to factory default settings

Contemporary Research 13 QMOD-SDI
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.
The flow of information will start at the tuner, which will respond to Unit 2 commands, passing on Unit 1
commands to the QMOD-SDI.

Contemporary Research 14 QMOD-SDI
Rack Mounting
Two options are available for rack-mounting the QMOD-SDI.
RK1 Rack Mount
RK2 Rack Mount
RK1 Single Unit Rack Mount
Size Long Bracket: 9.5" [206mm] wide x 1.75" [38mm] height (1RU) x 1.75” [38mm] deep
Size Short Bracket: 1.0" [22mm] wide x 1.75" [38mm] height (1RU) x 1.75” [38mm] deep
Weight: 3.25 oz [0.148kg]
Enclosure: All aluminum with durable black powder coat paint
Hardware: Qty 4 CS, Phillip, Flathead, 82deg, Black, 8-32 x .25”
Attach the long and short rack ears to the side and towards the front of the unit with the four (4) supplied
8-32 by ¼” (black) countersunk screws.
RK2 Side-by-Side Rack Kit
1. Remove top cover of the first unit by removing the ten (10) black screws.
2. Attach cover of first unit to the side of the second with three (3) supplied 4-40 by 1/4" (silver colored)
panhead screws and split lock washers. Note that only one side of the second unit has the (3) built in
nuts to accept the screws above.
3. Reinstall the bottom/chassis of the first unit underneath its cover and attach with just eight (8) of the
screws removed in step 1.
4. Attach short rack ears to the side and towards the front of each unit with the four (4) supplied 8-32 by
1/4" (black) countersunk screws.
RK2 EZ Dual Rack Kit, Independent Mounting
This kit uses two heavy-duty rack ears, one for each QMOD. This allows individual mounting and removal of
two QMOD units, no need to remove covers to install.
1. Attach Left rack ear to left side of the first QMOD. The steel bracket is longer than the standard RK2
bracket, uses 2 screws at the front, one screw at the back. Mount to equipment rack
2. Attach rack ear to the right side of the next QMOD. Bolt into equipment rack

Contemporary Research 15 QMOD-SDI
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. Outdoor Antenna Grounding - If you connect an outside antenna or cable system to the product, be
sure the antenna or cable system is grounded so as to provide some protection against voltage surges
and built-up static charges. Section 810 of the National Electrical Code, ANSI/NFPA No. 70, provides
information with respect to proper grounding of the mast and supporting structure, grounding of the
lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge
unit, connection to grounding electrodes, and requirements for the grounding electrode.
4. Lightning - Avoid installation or reconfiguration of wiring during lightning activity.
5. Power Lines - Do not locate an outside antenna system near overhead power lines or other electric
light or power circuits or where it can fall into such power lines or circuits. When installing an outside
antenna system, refrain from touching such power lines or circuits, as contact with them might be
fatal.
6. Overloading - Do not overload wall outlets and extension cords as this can result in a risk of fire or
electric shock.
7. Object and Liquid Entry - Never push objects of any kind into this product through openings as they
may touch dangerous voltage points or short out parts, resulting in a fire or electric shock. Never spill
liquid of any kind on the product.
8. Servicing - Do not attempt to service this product yourself as opening or removing covers may expose
you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
9. Damage Requiring Service - Unplug this product from the wall outlet and refer servicing to qualified
service personnel under the following conditions:
When the power supply cord or plug is damaged.
If liquid spills or objects fall into the product.
If the product is exposed to rain or water.
If the product does not operate normally by following the operating instructions. Adjust only those
controls that are covered by the operating instructions. An improper adjustment of other controls
may result in damage and will often require extensive work by a qualified technician to restore the
product to its normal operation.
If the video product is dropped or the cabinet is damaged.
When the video product exhibits a distinct change in performance, this indicates a need for
service.

Contemporary Research 16 QMOD-SDI
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. Consumers should
inquire from selling dealer as to the nature and extent of the dealer's warranty, if any.
All warranty claims must be shipped pre-paid to the factory. Call or fax to obtain a Return Material
Authorization (RMA) number.
CR is not liable for any damages caused by any of its products or for the failure of any products to perform,
including any lost profits, lost savings, incidental damages, or consequential damages. CR is not responsible
for any claim made by a third party or made for you by a third party. This limitation of liability applies
whether damages are sought, or a claim is made, under this warranty or as a tort claim (including
negligence and strict product liability), a contract claim, or any other claim. This limitation of liability cannot
be waived or amended by any person. This limitation of liability will be effective even if CR or an authorized
representative of CR has been advised of the possibility of any such damages.
Some states do not allow a limitation of how long an implied warranty lasts. Some states do not allow the
limitation or exclusion of incidental or consequential damages for consumer products. In such states, the
limitation or exclusion of the Limited Warranty may not apply to you. This Limited Warranty gives you
specific legal rights. You may also have other rights that may vary from state to state. You are advised to
consult applicable state laws for a full determination of your rights.
Except as expressly set forth in this Limited Warranty, CR makes no other warranties, expressed or implied,
including any implied warranties of merchantability or fitness for a particular purpose. CR expressly disclaims
all warranties not stated in this Limited Warranty. Any implied warranties that may be imposed by law are
limited to the terms of this Limited Warranty.