All-In-One MPEG-2 SD Encoder-QAM Transmodulator
Model No: GN-8318Q
1: Support encoding and modulating
2: AV input and Output with IP / ASI after modution
3: Support AAC
Product Overview
GM-8318Q is a new generation, highly integrated SD encoder and QAM
transmodulator, combining MPEG-2 SD encoding, QAM RF reception,
transport stream processing and QAM modulation in a 1RU chassis.
It’s ideal for broadcasters, cable network operators and media
providers looking to reduce equipment costs and lower total power
consumption for digital television distribution
.
The GM-8318Q features versatile functions, high density and
superior performance, provides up to eight channels of MPEG-2
standard definition(SD) encoding, QAM RF demodulation, ASI-based
transport stream input, transport stream
multiplexing/re-multiplexing/pass-through, PSI/SI processing, two
QAM modulation outputs. All of these feeds incoming from local
analog PAL/NTSC video & audio media sources, local ASI transport
streams and remote QAM RF signals which can be processed into two
transport streams and finally distributed to cable network after
QAM modulation.
To make this as comprehensive as possible, Web browser and SNMP
management are also available for local and remote monitoring and
control, this can significantly reduce management time and save
operating expense.
Encoding Features:
· Up to eight channels of MPEG-2 SD video and MPEG-1 Layer II audio
encoding
· High picture quality in ultra low bit rate to reduce network
overheads or costs
· Supports encoding rate range from 1Mbps to 7Mbps
· Output resolutions: 480i (NTSC), 576i (PAL)
· Supports VBR/CBR video encoding
Transport Stream Processing Features:
· DVB-ASI transport stream inputs
· Transport stream multiplexing, remultiplexing and pass through
· Supports PID filtering, pass-through, PCR auto-correction
· PAT, PMT and SDT insertion
Modulation/Demodulation Features:
· Two QAM adjacent-channel outputs
· Wide range of modulation output bitrate from 15.5Mbps to 51.6Mbps
per QAM channel
· Supported QAM constellation: 16/32/64/128/256QAM
· ITU-T J.83 Annex A/B/C compliant, 6MHz or 8MHz bandwidth
· Self-adaptive filter circuit design ensures outstanding
out-of-band rejection
Other Features:
· Web browser and SNMP management for local and remote management
and control;
· Front panel control and LCD display for parameter settings and
malfunction alarm display
· Local and remote firmware upgrades
· Low power consumption
| Video/Audio Encoding Input |
| Analog Video/Audio Input Options |
| Composite Video | 4 or 8 x CVBS |
| BNC female, 75Ω |
| Unbalanced Audio | 4 or 8 x Stereo pairs (R&L) |
| BNC female, 600Ω |
| Stereo or Mono mode |
| Video Encoding | |
| Encoding Formats | MPEG-2, MP@ML |
| Resolution & Frame Rate | 720/544/480/352 x 576i@25fps 352 x 288@25fps 720/544/480/352 x 480i@29.97fps 352 x 240@29.97fps |
| Aspect Ratio | 4:3 |
| Video Control | Brightness, Contrast, Chrominance and Hue |
| Encoding Rate Mode | CBR, VBR |
| Video Encoding Rate | 1-7Mbps per program |
| Audio Encoding | |
| Encoding Standards | MPEG-1 Layer II |
| Operation Mode | Stereo or Mono |
| Volume Control Range | -63dB to 20dB |
| Supported Sample Rate | 32 kHz, 44.1 kHz, 48 kHz |
| Audio Encoding Rate | 64/128/192/256/384 kbps |
| RF Input |
| Number of Inputs | 1 x RF Input, 1 x RF Loop Out |
| Connector Type | F-Type (Female, 75Ω) |
| Standards | DVB-C (EN300429) |
| Constellations | 16/32/64/128/256 QAM |
| Frequency Range | 50-860MHz |
| Input Signal Level | -20 to +20dBm (64QAM) |
| ASI Transport Stream Input |
| Qty of ASI Input | 1 x ASI, 1 x ASI Loop Out |
| Connector | BNC female, 75W |
| TS Packet Length | 188 or 204 Bytes |
| TS Output Bit Rate | 2-60Mbps |
| Burst TS | Not support |
| Transport Stream Processing |
| Functions | Multiplexing, Re-multiplexing, Pass through |
| Capacity of Processing | Two transport streams, up to 24 programs |
| PCR | Auto correction |
| PSI/SI | PSI/SI auto generation, manual insertion |
| PID | Remapping and filtering and pass through |
| PSI/SI Standards | ISO/IEC 13818-1, DVB SI(ESI EN300468) |
| Real-time Statistics | TS rate, program rate, PID rate |
| QAM Modulation Output |
| Output Connector | 1 x RF Output 1 x -20dB RF Output (Test Port) |
| Connector Type | F-Type (Female, 75W) |
| RF Frequency Range | 48-870 MHz |
| Bandwidth | 6 or 8MHz |
| Numbers of Output | Two QAM adjacent-channels |
| Output Bitrate Range | 15.5Mbps to 51.6Mbps per QAM channel |
| Modulation Standards | ITU-T J.83 Annex A, B and C |
| Constellations | Annex A: 16/32/64/128/256 QAM Annex B: 64/256QAM Annex C: 32/64/128/256 QAM |
| Symbol Rate | Annex A: 4.2-7 Mbaud Annex B: 5.057 Mbaud Annex C: 4.2-5.3 Mbaud |
| RF Output Power Level | 90-110dBμV (RF output Port) 70-90dBμV (-20dB test port) |
| MER | ≥38dB (64QAM, 6.875MBaud) |
| SNR(Out of band) | ≥50dB |
| Return Loss | ≥12dB |
| Gain Fine-tune | 0-10dB, Step Size 0.25dB |
| Network Management |
| Interface | 1 x 10/100 Base-T Ethernet |
| Connector | RJ-45 |
| Management | Web browser and SNMP management |
| Miscellaneous |
| Front Panel | 3.5’’ LCD with 6 x Control Button for 2-lines alphanumeric display
and parameter settings |
| 3 x Dual color LED, for status indications of power, running and
Alarm |
| Rear Panel | 1 x Power Receptacle(AC Input) |
| 1 x Power switch |
| 1 x Serial Console Port(via RJ-45 connector) |
| Power Supply |
| Input Voltage | 90-250 VAC, 50/60Hz |
| Power Consumption | 50W (Typ.) |
| Environmental |
| Operating Temperature | 0℃ to 45℃(32℉ to 113℉) |
| Storage Temperature | -20 to 80℃(-4℉ to 176℉) |
| Operating Humidity | 90%, non-condensing |
| Mechanical |
Product Dimensions (W x H x D) | 483mm x 44.5mm x 400mm 19’’ x 1.73’’ (1U) x 15.8’’ |
| Product Weight | Approx. 5Kg (11 lbs) |
Rear Panel View :
For More Information
please visit our website: or contact your local sales
representative:
GOSPELL Shenzhen, China Overseas Sales Center Block F10-F13, F518 Idea Land, Baoyuan road, Bao'an Central
District, Shenzhen City 518102, Guangdong Province, China TEL: +86-755-26716172 FAX: +86-755-29114035 E_mail: sales.dtv@gospell.com | GOSPELL India (Office) Office No.C-503, 5th Floor, L.B.S. Road, Bhandup (West),
Mumbai-400078 TEL: +02265685890 E_mail: ashish@gospell.com | GOSPELL Mexico (Office) Avenida Patria NO3489.EL Tapatio Tlaquepaque Jal.Mexico C.P.45588 TEL: +52 (33) 3860-7059 E_mail: ventas@gospell.mx |
| | |
GOSPELL Brazil (Joint Office) Rua Engenheiro Prudente, 477/483, Sao Paulo, Brazil TEL: +55 (11) 2274-1455 E_mail: zhouyong@gospell.com | GOSPELL Paraguay (Joint Office) Tte. Garay 1795 esq. Campo Vía Barrio San Vicente Asunción -
Paraguay TEL: +595 21 33 43 02 | |
