DVB MODULATOR
IMA918 Eight-Channel IP to ATSC Multiplexing Modulator Module
FEATURES 
- ATSC modulation, ATSC A/53 standard
- 1GigE Input, RJ45 interface or SFP
- Max. 256 channels TS over UDP/RTP, MPTS/SPTS Input, unicast/multicast
- Up to 840Mbps for all inputs
- Constellation in 8VSB
- Up to 8 adjacent ATSC 8VSB carriers out per card
- RF output frequency in range 40~860MHz
- RF output level with -16~0 dBm(per 8VSB 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. 180 PIDs) and PSI/SI edit
- Function of NIT insertion
- Support multiplexed or scrambled TS over UDP output
- Dual power supply
- Remote control by NMS/SNMP
- Upgrading by Ethernet interface
INTRODUCTIONS
IMA918 Eight-Channel IP to ATSC Multiplexing Modulation Module is the latest IP to ATSC modulator developed by Trochilus, which integrated with multiplexing function at the same time. Each IMA918 daughter module can work independently, due to the combining of 8*multiplexing modules and 8*ATSC (8VSB) modulation modules. It supports up to 256-channel IP MPTS/SPTS (per daughter card) input with its GigE port and 8*adjacent carriers (40~860 MHz) output through the two RF output interfaces.
This IMA918 IP to ATSC Multiplexing Modulation Module was designed in slot structure and being allowed of a maximum 3-module insertion into one device simultaneously. Its excellent and high integration, and powerful performance make it quite a good choice for the new generation of digital TV systems.
This IMA918 IP to ATSC Multiplexing Modulation Module was designed in slot structure and being allowed of a maximum 3-module insertion into one device simultaneously. Its excellent and high integration, and powerful performance make it quite a good choice for the new generation of digital TV systems.
SPECIFICATIONS
| Input | ||
| TS | 1*GE, >RF45 or SFP interface | |
| Input Channel Qty. | 256 | |
| Standard | EN 50083-9 ASI | |
| Transport Protocol | TS over UDP/RTP, Unicast / Multicast. IGMP V2/V3 | |
| Max. Bit-rate | 840Mbps for all inputs | |
| Multiplexing | ||
| Output Channel Qty. | 8 | |
| Max. PIDs | 180 for each channel | |
| Functions | PID remapping | |
| PCR accurate adjusting | ||
| Auto-generating of PSI/SI table | ||
| Modulation | ||
| Standard | ATSC A/53 | |
| QAM Channel Qty. | 8 adjacent channels | |
| Constellation | 8VSB | |
| FEC | RS(204, 188)+Trellis | |
| Output | ||
| RF Output | RF Range | 40 ~ 860 MHz, by 1KHz stepping |
| RF Out Attenuation | -16 dBm ~ 0 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, 75Ω | |
| IP Output | IP Output QTY. | 8 (1*GE, RJ45 or SFP interface) |
| Code Rate | 1~108Mbps per channel | |
| IP Out Format | TS over UDP, Unicast/Multicast, IGMP V2/V3 | |
| Management | ||
| Network Control | by NMS/SNMP | |
| 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
