OPT 5548 8 Channel MPEG-2 Encoder Modulator
1. Brief Introduction
OPT5548 8 Channel Encoder Modulator is an all-in-one device integrated encoding multiplexing and modulation functions in one standard 1U case. It can convert 8 CVBS signals and 1 ASI input to DVB-C (DVB-T Optional) RF out. It is also equipped with 2 ASI ports and IP port to output TS in MPTS or SPTS.The signals source could be from satellite receivers, closed-circuit television cameras and etc. its output signal is to be received by DVB-C/T standard TVs or DVB-C/T STBs.
2. Key Features
• Support 8CVBS+1 ASI + 1 DVB-C Tuner input
• Mpeg2 video encoding
• MPEG1 Audio Layer 2, AC3 audio encoding
• Support PAL, NTSC SD signal
• MPTS or 8xSPTS output over UDP
• DVB-T/C QAM RF test&out
• Support all DVB-C QAM modes(J.83A/B/C)
• LCN support (Logical Channel Number) Excellent modulation quality MER≥42dB
• RF Frequency range 30Mhz~960Mhz
• LCD display, Remote control and firmware
• Web NMS Management
• Updates via web/Ethernet
3. Technical Parameter
Input | 8 CVBS, BNC interface | |||
8 pairs of unbalanced stereo audio, BNC interface | ||||
1 ASI input, BNC interface | ||||
1 Tuner input | ||||
Video | Resolution |
PAL: 720×576_50i, 640×576_50i, 352×288_50i,320×288_50i, 176×288_50i, 176×144_50i | ||
NTSC: 720×480_59.94i, 544×480_59.94i, 352×240_59.94i, 320×240_59.94i, 176×240_59.94i, 160×120_59.94i | ||||
Encoding |
MPEG-2 |
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Bitrate |
0.125~19.000Mbps |
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Chroma |
4:02:00 |
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Aspect Ratio |
1:1, 4:3, 16:9, 2.21:1 |
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Audio | Encoding | MPEG-1 Layer II, AC3 |
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Sampling rate |
48KHz |
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Bit-rate |
64kbps,96kbps,128kbps,192kbps, 256kbps, 320kbps |
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DVB-C | J.83A | Constellation |
16/32/64/128/256QAM | |
Symbol rate | 5.0-9.0Msps | |||
J.83B | Constellation |
64QAM, | 256QAM | |
Symbol rate | 5.057Msps | 5.361Msps | ||
J.83C | Constellation |
64QAM, 256QAM | ||
Symbol rate | 5.0-9.0Msps | |||
DVB-T | Standard |
EN300744 |
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FFT mode | 2K, 8K |
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Bandwidth | 6M, 7M, 8M |
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Constellation | QPSK, 16QAM, 64QAM |
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Guard Interval | 1/4, 1/8, 1/16, 1/32 |
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FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
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MER | ≥42dB |
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RF frequency | 30~960MHz, 1KHz step |
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RF output level | -30~ -10dbm (77~97 dbµV), 0.1db step |
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Multiplexing |
1 ASI and tuner input multiplexed with local 8 channels of TS | |||
PID re-mapping | ||||
PCR accurate adjusting | ||||
Automatic generating PSI/SI table | ||||
Stream output | 2*ASI output, BNC interface | |||
MPTS & 8 SPTS over UDP, 10/100Base-T Ethernet interface (UDP unicast / multicast) | ||||
System function | LCD/keyboard operating, web NMS supporting |
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Ethernet software & hardware upgrade | ||||
General | Dimension (L×W× H) |
482mm×455mm×44.5mm |
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Approx weight |
4kg |
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Temperature |
0~45℃(work), -20~80℃(Storage) |
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Power |
AC 100V-220V±10%, 50/60Hz |
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Consumption | 25W |
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