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Gospell Digital Technology Co.,ltd.
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ASI / RF Input Digital TV Encoder MPEG-4 MPEG-2 Transcoder For DTV System
| Place of Origin: | Zhejiang, China (Mainland) |
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Product Detail
8 In 1 MPEG-2/MPEG-4 To MPEG-4/MPEG-2 Transcoder</strong
8 In 1 MPEG-2/MPEG-4 To MPEG-4/MPEG-2 Transcoder
8 In 1 MPEG-2 To MPEG-4 Transcoder With ASI/RF Input
1: Support Mpeg-2 to Mpeg-4 conversion
2: Support ASI or RF input
Product Overview
GOSPELL GN-1738 transcoder is highly competitive SD video conversion unit with best-in-class video quality. It can convert up to eight channels of MPEG-2 (or MPEG-4 AVC) SD live video streams to MPEG-4 AVC (or MPEG-2) video formats.
The GN-1738 provides a wide range of real-time transport streams input options, from satellite, DVB-ASI and TS-over-IP inputs. This allows it handle any real-time video source, and 1+1 redundant transcoding outputs via both IP and DVB-ASI are also introduced, enabling a highly reliable video service to be delivered. In addition, the GN-1738 supports Web and SNMP-based management for conveniently local and remote management as well as maintenance.
With the number of video formats increasing fast, DTV operators require the ability to have a transcoding solution to simplify their headend architecture and to reduce the amount of headend equipment needed. To achieve this, they need products able to deal with both MPEG-2 and MPEG-4 AVC video streams from different sources.
Main Features
- MPEG-2 to MPEG-4 AVC, MPEG-4 AVC to MPEG-2
- Up to eight channels of SD video conversion
- Supports MPEG-1 Layer II/AAC/HE-AAC v1&v2 audio streams pass-through
- Adopts advanced transcoding core
- High video quality but in ultra low bit rate
- Multiple video sources acquisition: 4 x DVB-S/S2 RF inputs or 4 x DVB-ASI and IP inputs
- Support VBR/CBR video encoding
- MPEG TS-over-IP(7 x 188 Byte) output, supporting MPTS/SPTS
- Dual TS-over-UDP outputs, supporting 1+1 redundant configuration
- Dual DVB-ASI outputs, supporting 1+1 redundant configuration
- Front panel control and LCD display
- SNMP-based management for remote monitoring and control
- Web-based network management for local and remote management and software upgrade
Technical Specifications
| RF Input Option | |
| Numbers of Input |
4 x RF Input, 4 x RF Loop Out |
| Operation Mode | Independent input |
| Connector Type | F-Type (Female, 75Ω) |
| Frequency Range | 950MHz to 2150MHz |
| Standards |
DVB-S: EN 300 421 DVB-S2: EN 302 307 |
| Constellations |
DVB-S: QPSK DVB-S2: QPSK/8PSK |
| Symbol Rate |
QPSK: 2.0Msym/s to 45Msym/s 8PSK: 10 Msym/s to 31Msym/s |
| Input Signal Level | -65dBm to -25dBm |
| LNB Power Output |
0V/+DC 13V/18V LNB short circuit protection |
| TS Input Option | |
| DVB-ASI Input | |
| Numbers of ASI Input | 4 x ASI |
| Operation Mode | Independent input |
| Connector | BNC female, 75W |
| Standards | DVB-ASI |
| TS Packet Length | 188 or 204 Bytes |
| MPEG TS-over-IP Input | |
| Number of IP Output | 1 x 10/100 Base-T Ethernet |
| TS Format | 7 x 188Byte |
| IP Encapsulation | MPEG TS-over-UDP/IP |
| MPEG TS | MPTS, SPTS |
| Addressing | Unicast or Multicast |
| Connector | RJ-45 |
| ASI Transcoding Output | |
| Number of ASI Outputs | 2 x ASI |
| Operation Mode | 1+1 Redundant output |
| Connector | 4 x BNC*, 75W |
| TS Packet Length | 188 Bytes |
| TS Output Bit Rate | 2 to 60Mbps |
| Notes: Only two BNC connectors are available for ASI outputs, the rest two are not available. | |
| MPEG TS Over IP Transcoding Output | |
| Qty of IP Output | 2 x 10/100 Base-T Ethernet |
| Operation Mode | 1+1 Redundant output |
| TS Output Bit Rate | 2 to 60Mbps |
| TS Format | 7 x 188Byte |
| IP Encapsulation | MPEG TS-over-UDP/IP |
| TS Mode | MPTS, SPTS |
| Number of TS Output | 8 TS |
| Addressing | Unicast or Multicast |
| Connector | RJ-45 |
| Transcoding | |
| Transcoding Processing |
Video: Decoding and encoding Audio: Pass-through |
| Video Transcoding Mode |
MPEG-2 SD to MPEG-4 AVC SD MPEG-4 AVC SD to MPEG-2 SD |
| Audio Pass-Through Mode | One or two MPEG-1 Layer II/AAC/HE-AAC v1&v2 audio stream(s) per video service |
| Transcoding Capability |
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