DVB MODULATOR
IMC908 Eight-Channel IP to QAM Modulator Module
FEATURES 
- DVB-C modulation, EN300 429, ITU-T J.83A/J.83B/J.83C
- 1GigE Input, RJ45 interface or SFP
- Max. 10*different IP over UDP, MPTS/SPTS Input, unicast/multicast
- Up to 840Mbps for all inputs, 108Mbps per channel
- Constellation of modes 16QAM, 32QAM, 64QAM, 128QAM, 256QAM
- Up to 8 adjacent QAM carriers out per card
- RF output frequency in range 48~860MHz
- RF output level with -14~6 dBm(per QAM carrier), 0.5dB stepping
- Excellent RF performance, MER≥40dB
- MPEG-2 / MPEG-4 AVC re-multiplexing, and MPTS/SPTS multiplexing available
- Accurate PCR adjusting
- Excellent performance of output frequency attenuation
- Synchronously support PID filtering, re-mapping(max. 256 PIDs) and PSI/SI edit
- Dual power supply (optional)
- Remote control by NMS
- Upgrading by Ethernet interface
INTRODUCTIONS
IMC908 Eight-Channel IP to QAM Modulation Module is the latest QAM modulator developed by Trochilus, which integrated with multiplexing function at the same time. Each IMC908 daughter card can work independently, due to the combining of multiplexing modules, and QAM (DVB-C) modulation modules. It supports up to 10 IP addresses/ports input with its GigE port and 8*DVB-C(2* 4 adjacent carriers, 48~860MHz) output through the two RF output interfaces.
This IMC908 IP to QAM Modulation Module was designed in slot structure and being allowed of a maximum 3-card insertion into one device simultaneously. Its excellent< and high integration, and powerful performance make it quite a good choice for the new generation CATV system.
This IMC908 IP to QAM Modulation Module was designed in slot structure and being allowed of a maximum 3-card insertion into one device simultaneously. Its excellent< and high integration, and powerful performance make it quite a good choice for the new generation CATV system.
SPECIFICATIONS
| Input | |
| TS | 1*GE, up to 10*IP addresses/ports, RF45 or SFP interface |
| Input Channel Qty. | 10 |
| Standard | EN 50083-9 ASI |
| Transport Protocol | TS over UDP, Unicast / Multicast. IGMP V2/V3 |
| Max. Bit-rate | >Max. 108Mbps per channel; Max. 840Mbps for all inputs |
| Multiplexing | |
| Output Channel Qty. | 8*adjacent carriers |
| Max. PIDs | 256 for each channel |
| Functions | Auto/manual PID remapping |
| PCR accurate adjusting | |
| Auto-generating of PSI/SI table | |
| Modulation | |
| Standard | DVB-C(QAM), EN300 429 / ITU-T J.83A/J.83B/J.83C |
| QAM Channel Qty. | 8 channels (2* 4 adjacent QAM) |
| Constellation | 16QAM, 32QAM, 64QAM, 128QAM, 256QAM |
| Symbol Rate | 5.0 ~ 7.0 Msps, successionally adjustable by 1ksps stepping |
| FEC | RS(204, 188) |
| Output | |
| RF Range | 48 ~ 860 MHz, by 1KHz stepping |
| RF Out Attenuation | -14 dBm ~ 6 dBm(per carrier), by 0.5 dB stepping |
| Output Return Loss | >10 dB |
| Phase Jitter | <0.5ºRMS |
| Spurious Rejection | >55 dB |
| MER | ≥40 dB |
| C/N | >45 dB |
| Connector | 2*F type, output port for 8 carriers(2*4 adjacent carriers), 75Ω |
| Management | |
| Network Control | by NMS |
| Upgrading | by Ethernet software |
| Language | English |
| General | |
| Voltage | 110~220V AC, 50/60Hz |
| Consumption | 22 W |
| Environment | 0~45°C (Operation), -20~80°C (Storage) |
| Dimension (W*D*H) | 630*440*44.5 mm |
| Net Weight | 10 KGS |
DIAGRAM
REAR PANEL
