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Specifications, Contemporary research 4 qmod-hd – Contemporary Research QMOD-HD Manual User Manual

Page 4

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Contemporary Research

4

QMOD-HD

Specifications

Physical

Size: 8.5” [216mm] wide x 1.75” [44mm] 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

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 13, 15, 18, and 25 Mbps
MPEG1, Layer 2 audio

Modulation

Switchable 64/256 QAM, J83 Annex B, Interleaving Modes (128,1)
MER 38 dB typical

Latency


Compliance

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.
FCC Class B, ROHS, meets California standards

Power

2.1mm coaxial jack (inside center conductor positive)
0.7 A maximum, 11.5 to 13.5 VDC, 12 VDC typical

Real Panel





RS-232



GPI


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
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

RGB: RGBHV DB-15 female (1080i/720p/480p), 59.94/29.97 Hz
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

Options

RK1 Single Rack Kit
RK2 Dual Rack Kit
RK2-EZ Dual Rack Kit
RK1-AC Single Rack Kit with accessory shelf for digital signage player or video scaler
CC-COM RS-232 Null Modem Cable

Firmware

4.5 Improved composite video operation
4.6 allows selection of 4:3 or 16x9 format on 480i, requires 02E7 encoder firmware
4.7 adds auto-sensing of input resolution
5.1 resets FPGA after 2 encoder resets
5.4 removes background color glitch

Pwr In

12 VDC

0.7A max

RS-232

Control

Made in USA

RGB

R

A ud

L

V ideo

P r

Y

P b

SPDIF

Opti cal

Coax

RF Out

A/V Inputs

(+)

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