Product Overview
![多路解调适配器]( "多路解调适配器")
GOSPELL’s GQ-3680 is a new generation of modular & high density IPQAM combining TS-over-UDP/RTP input and output, transport stream re-multiplexing, scrambling, PSI/SI processing and 16/32/64/128/256QAM modulation in an 1RU. It supports up to 48 or 72 QAM modulation channels by using three external pluggable 16 or 24QAM channel modules, each QAM module supporting up to two Gigabit copper interfaces. Moreover, GQ-3680 supports 1+1 redundant & hot-swappable power supplies for high reliability and overall stability of the system. Its pay-as-you-grow modular design, flexible configuration and licensing mechanism are making the GQ-3680 extremely scalable, very reliable with high performance, all of which are important to cable operators.
The GQ-3680 supports Web browser and SNMP management with remote monitoring and control that can greatly reduce management time and operating expenses (OPEX) of operators.
With GQ-3680, cable operators can be ensured that they will have a scalable, reliable product that enables them to offer high performance video stream services for years into the future. It can be used in cable central head-ends, remote head-ends and VOD networks.
Technical Specifications
![多路解调适配器]( "多路解调适配器")
Chassis |
Rear Panel | 3 x Pluggable QAM Module Slot* |
Front Panel | 1 x 10/100 Base-T Control Port(RJ-45) |
1 x Serial Console Port (RJ-45) |
Power Supply | Built-in AC PSU |
Optional 1+1 redundant hot-swappable PSU |
Input Voltage: 90 - 250 VAC, 50/60Hz |
Notes: Hot-pluggable is not supported, make sure the power cord was disconnected before insert or replace QAM modules! |
QAM Module |
IP Input & Output |
Interface | 2 x 100/1000 Base-T Ethernet |
RJ-45 connector |
Operation Mode | Independent or redundant |
Data Format | TS-Over-IP(UDP/RTP) |
MAC Layer Access | IEEE 802.3 |
Modulation Output-Type B |
Output Connector | 1 x RF Output 1 x -20dB RF Test Port |
Connector Type | F-Type (Female, 75W) |
RF Frequency Range | 30 to 860 MHz |
Bandwidth | 6 or 8MHz |
Numbers of channel | 16 QAM modulation channels(or carriers) |
Modulation Standards | ITU-T J.83 Annex A, B and C |
Constellations | Annex A: 16/32/64/128/256QAM Annex B: 64/256QAM Annex C: 32/64/128 /256QAM |
Symbol Rate | Annex A: 4.2 to 7 M Baud Annex B: 5.057 M Baud Annex C: 4.2 to 5.3 M Baud |
RF Output Power Level | 98 to 119dBμV (RF output Port) 70 to 90dBμV (-20dB test port) |
MER | ≥38dB (64QAM, 6.875M Baud) |
SNR(Out of band) | ≥50dB |
Return Loss | ≥14dB |
Gain Fine-tune | 0 to 5.0dB, Step Size 0.25dB |
Modulation Output-Type D |
Output Connector | 1 x RF Output 1 x -20dB RF Test Port |
Connector Type | F-Type (Female, 75W) |
RF Frequency Range | 30 to 860 MHz |
Bandwidth | 6 or 8MHz |
Numbers of channel | 24 QAM modulation channels(or carriers) |
Modulation Standards | ITU-T J.83 Annex A and C |
Constellations | Annex A: 16/32/64/128/256QAM Annex C: 32/64/128/256QAM |
Symbol Rate | Annex A: 4.2 to 7 M Baud Annex C: 4.2 to 5.3 M Baud |
RF Output Power Level | 98 to 119dBμV (RF output Port) 70 to 90dBμV (-20dB test port) |
MER | ≥38dB (64QAM, 6.875M Baud) |
SNR(Out of band) | ≥50dB |
Return Loss | ≥14dB |
Gain Fine-tune | 0 to 5.0dB, Step Size 0.25dB |
TS Re-multiplexing |
Capacity of Processing | Up to 1024 programs |
PCR | Auto correction |
PSI/SI | PSI/SI table auto-generation, manual insertion, Comply with: ISO/IEC 13818-1 DVB SI(ESI EN300468) |
PID | Remapping and filtering and pass-through |
Real-time Statistics | TS rate, program rate, PID rate |
TS Scrambling (Software Options) |
Scrambling Algorithm | Comply with DVB-CSA |
Numbers of CAS | Optional up to four DVB SimulCrypt CAS(s) |
CAS Interface Protocol | TCP/UDP (via Network Management Port) |
EMM Bandwidth | Up to 3 Mbps per TS |
Scrambling Rate | Up to 60 Mbps per QAM channel |
Scrambling Level | Program-level |
Miscellaneous |
Front Panel | 3.5’’ LCD with 6 x Control Buttons for 2-line alphanumeric display and settings |
3 x Dual color LED, for status indications of power, work and Alarm |
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 450mm 19’’ x 1.73’’(1RU) x 17.7’’ |
Product Weight | Approx. 6.5Kg (14.3 lbs) (fully configured) |
Rear Panel View (Sample Config.)
![多路解调适配器]( "多路解调适配器")
![GQ-3680A]( "GQ-3680A")
Ordering Information
![多路解调适配器]( "多路解调适配器")
Hardware Options |
Hardware Codes | Descriptions |
GQ-3680B-1PS | 1RU, GQ-3680B modular chassis with 3 x Pluggable QAM module slots, Single AC PSU |
GQ-3680B-2PS | 1RU, GQ-3680B modular chassis with 3 x Pluggable QAM module slots, 1+1 Redundant Hot-swappable PSUs |
GQ-3680D-1PS | 1RU, GQ-3680D modular chassis with 3 x Pluggable QAM module slots, Single AC PSU |
GQ-3680D-2PS | 1RU, GQ-3680D modular chassis with 3 x Pluggable QAM module slots, 1+1 Redundant Hot-swappable PSUs |
QM-3680B | QAM module with 16 QAM channels, 2 x 100/1000Base-T Ethernet input & output(RJ-45), 1 x RF output, 1 x -20dB RF test port |
QM-3680D | QAM module with 24 QAM channels, 2 x 100/1000Base-T Ethernet input & output(RJ-45), 1 x RF output, 1 x -20dB RF test port |
License Options |
License Codes | Descriptions |
LC-3680-CA1 | Enable scrambling function and one DVB Private Crypt CA |
LC-3680-CA2 | Enable scrambling function and two DVB SimulCrypt CA(s) |
LC-3680-CA3 | Enable scrambling function and three DVB SimulCrypt CA(s) |
LC-3680-CA4 | Enable scrambling function and four DVB SimulCrypt CA(s) |