ip转模拟，主要解决模拟电视停播，数字费用又很昂贵。引入高质量廉价的IP信号源来作为输入，通过原来同轴线传输数字效果的模拟信号，这样也解决了电视机是模拟电视机的问题。
l 2
GE 千兆口 (最大64 IP输入，支持 MPTS/SPTS的IP协议), 输入的千兆口码率支持最大 。
l
支持WEB管理
Specifications
Input | Interface | 2
GE ports (max 64 IP input) Max
840Mbps for each GE input |
Stream | UDP,
UDP / RTP, 1-7 packets, FEC, SPTS, MPTS |
Transport
Protocol | TS
over UDP/RTP, unicast and multicast, IGMP V2/V3 |
Packet
Length | 188
/ 204 Bytes |
Decoding Parameters | Video | H.264/AVC
Level 4.1 HP, MPEG-2 MP@HL |
Audio | MPEG-1/2
Layer 1/2, (HE-)AAC |
Data | Teletext,
Teletext subtitles, DVB Subtitling |
Resolutions | 480I
576I 720P 1080I 1080P |
Aspect
ratio | 4:3/16:9 |
Modulation Parameters | Number
of channels | up
to 32 |
Connectors | 75Ω, F-jack |
Frequency
range | 47
– 862MHz, digital modulation |
Output
level | maximum
112dBμV |
Return
loss | ≥ 14dB |
Spurious
frequency dist. | ≥ 60dB |
Stereo
cross talk | >
55dB |
Residual
carrier accuracy | 1% |
TV
standard | PAL
B/G/D/K/M/N, NTSC，SECAM（under
development） |
Video-signal
to noise ratio | ≥ 60dB |
Network
Interface | Management | 1
x 100 Base-T Ethernet (RJ 45) |
Data | 2
x 1000 Base-T Ethernet (RJ 45) |
Protocol | IEEE802.3
Ethernet, RTP, ARP, IPv4, TCP/UDP, HTTP, IGMPv2/v3 |
Others | Image resolution | up to
1080i |
CNR (after internal combining) SNR (after internal combining) | 60 dB >
53 dB |
Sampling frequency | 48,
44.1, 32 |
Output volume adjustment | 0
- 100 % |
General | Demission | 420mm×440mm×44.5mm(WxLxH) |
Temperature | 0~45℃(operation),
-20~80℃(storage) |
Power Supply | AC100V±10%, 50/60Hz or AC 220V±10%,50/60Hz |
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