Data Sheet Model D9479 Gigabit QAM Modulator (1 GHz) With its exciting video transmission technology, the Model D9479 Gigabit QAM Modulator (GQAM) packs the broadband pipe with interactive services that your subscribers want and supports their growing demand for high-definition (HD) content. Connect directly to current generation video servers, encoders, integrated receiver-decoders (IRDs), and other digital video sources using the four digital video broadcasting (DVB) standard asynchronous serial interface (ASI) inputs on the GQAM. Prepare for the future by using the Gigabit Ethernet (GbE) port to connect to the next generation of video servers, either linked locally with the GQAM or remotely through a network. Make room for other devices in your headend. One GQAM frees up a total of seven additional rack unit openings. The GQAM contains the core functionality of four Model D9477 MQAM Modulators, making the GQAM an exceptional product for mass deployment of video-on-demand (VOD), anything-On-Demand (xOD), and other interactive broadcast services. Figure 1. Model D9479 Gigabit QAM Modulator (1 GHz) Features Space Savings ● Contains the core functionality of the MQAM modulator ● Includes 6 input ports and can provide up to 16 QAM outputs to achieve the broadcast capacity of 4 MQAM modulators or 16 QAM modulators ● Enables higher rack density to save space Network Utilization Enhancements ● Enables direct connect to both DVB ASI and Gigabit Ethernet video sources at the same time and the capacity to create transport streams from any combination of the 5 inputs ● Provides 4 DVB ASI inputs (216 Mbps each) and 1 plug-in Gigabit Ethernet input (GBIC) to multiplex content from any input to any of the 16 outputs (channels) ● Uses an output center frequency range of 91 to 999 MHz (use of this increased frequency range may require a software upgrade) ● Optimizes system management with provisioning and monitoring by the DNCS ● Facilitates deployment in either a headend or a hub Page 1 of 4 Data Sheet Content Security ® ● Incorporates PowerKEY DES ● Supports DVB Common Scrambling Algorithm options Figure 2. Back Panel Connectors Product Specifications Table 1. Product Specifications Specification Value Digital I/O Performance Maximum Input Rate 1.804 Gbps (4 x 216 Mbps [ASI payload rate] plus 952 Mb/s [GbE payload rate]) Maximum Aggregate 620 Mb/s (16 x 38.8 Mb/s) Output Rate RF Block Conversion Up to four (4) 6 MHz QAM channels within a 24 MHz bandwidth per QAM output Frequency Range (center 91 to 999 MHz capable frequency) Minimum Tuning Step Size The 24 MHz block of frequencies can be tuned in increments of 250 KHz RF Output Power Level +44 to +54 dBmV (0.1 dB steps) minimum range (per QAM carrier) Note: Noise and spurious performance limits apply with the output power in the range of 44 to 54 dBmV. RF Output Power ± 2 dB Tolerance Note: Actual output power is within ±2 dB of the value displayed for setpoint, temperature, and frequency variations. Power output adjustment range is from 42 to 56 dBmV. RF Output Impedance 75 ohm RF Output Return Loss > 12 dB (within output channel) (unsquelched) Spurious Outputs (50 MHz < -60 dB (relative to the average power of the QAM channel with the highest power level) to 1.1 GHz) Noise Floor (out of band) < -136 dBc/Hz, > 40 MHz from center frequency Page 2 of 4 Data Sheet Mechanical Rack Mount Type EIA RS-310 Dimensions 1.75 in. x 19 in. x 22.5 in., HWD (44.45 mm x 482.6 mm x 571.5 mm, HWD) Weight 13.5 lb (5.4 kg) Environmental Operating Temperature 0°C (32°F) to 50°C (122°F) Range Storage Temperature -10°C (14°F) to 70°C (158°F) Range Operating Humidity 5% to 95%, non-condensing Electrical Input Voltage AC unit: 90 to 130 VAC @ 47 to 63 Hz, or 180 to 264 VAC @ 47 to 63 Hz DC unit: -42 to -57 VDC Power Required (AC unit) 155 VA (typical) Power Dissipation 151 Watts (typical) In Rush Current 35 amps maximum, Vin = 130 VAC (AC unit) 75 amps maximum, Vin = 264 VAC (AC unit) 15 amps maximum, Vin = -57 VDC (DC unit) Connectors RF Outputs 4 total, type F, 75 ohm ASI Inputs 4 total, BNC, 75 ohm Gigabit Ethernet GBIC module connector. Modules are available for single-mode fiber, multi-mode fiber, and copper interfaces Ethernet 10/100BASE-T RJ-45 Craft Port DB-9 male AC Power IEC 320 DC Power 2-pin removable terminal block Modulation 6 MHz Type Alpha Interleaver Symbol Rate Data Rate Bandwidth Spec (Msymbols/sec) (megabits/sec) ITU-A DAVIC/DVB 6412% I=12, J=17 5.304 29.328 Mb/s 6 MHz ITU-A DAVIC 256 12% I=204, J=1 5.304 39.104 Mb/s 6 MHz ITU-B QAM 64 18% I=128, J=1 5.056941 26.971 Mb/s 6 MHz ITU-B QAM 256 12% I=128, J=1 5.360537 38.811 Mb/s 6 MHz ITU-C DAVIC/DVB 6413% I=12, J=17 5.274 29.162 Mb/s 6 MHz Regulatory Compliance UL, CUL, and FCC Certified Ordering Information Table 2. Ordering Information Gigabit QAM Modulator Chassis Part Number Gigabit QAM Modulator Model D9479-1 (110 VAC unit) 740450 Gigabit QAM Modulator Model D9479-2 (48 VDC unit) 4000148 Gigabit Ethernet GBIC Interface Options (select one) Part Number Multi-mode fiber (MMF), 850 nm wavelength, SC-SC connector type 1000839 Single-mode fiber (SMF), 1300 nm wavelength, SC-SC connector type 1000127 Copper, 1000BASE-T, RJ-45 connector type 4009446 Page 3 of 4 Data Sheet Cisco, Cisco Systems, the Cisco logo, the Cisco Systems logo, Scientific Atlanta, and PowerKEY are registered trademarks or trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. All other trademarks mentioned in this document are the property of their respective owners. Specifications and product availability are subject to change without notice. © 2008 Cisco Systems, Inc. All rights reserved. Service Provider Video Technology Group 1-800-722-2009 or 678-277-1120 Part Number 7011534 Rev A www.scientificatlanta.com November 2008 Page 4 of 4