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Help CenterDexin NDS3548A MPEG2 SD 8 IN 1 Encoder Modulator
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NDS3548A MPEG2 SD 8 IN 1 Encoder Modulator
Product Overview
NDS3548A 8 in 1 Encoder/Modulator is an all-in-one device integrated encoding, demodulation, multiplexing and modulation functions in one standard 1U case. It can convert 8 CVBS signals, 1 ASI and 1 DVB-C Tuner input to DVB-C RF out in the frequency range of 30~960MHz. It is also equipped with 2 ASI ports and IP port to output TS in MPTS & 8* 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 standard TVs or DVB-C STBs.
The device can be used in public place such as metro, market hall, theatre, hotels, resorts, etc for advertising. It also can be used for monitoring, training and educating in company, schools, campuses, hospital.
Key Features
l Support 8CVBS+1 ASI + 1 DVB-C Tuner input
l Mpeg2 video encoding
l MPEG1 Audio Layer 2, AC3 audio encoding
l Support PAL, NTSC SD signal
l MPTS or 8xSPTS output over UDP
l DVB-C/QAM RF test&out
l Support all DVB-C QAM modes(J.83A/B/C)
l LCN support (Logical Channel Number) Excellent modulation quality MER≥42dB
l RF Frequency range 30Mhz~960Mhz
l LCD display, Remote control and firmware
l Web NMS Management
l Updates via web/Ethernet
l Lowest cost per channel
Working Principle
Technical Specification
Input |
8 CVBS, BNC interface |
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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 |
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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 |
4:2:0 |
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Aspect Ratio |
1:1, 4:3, 16:9, 2.21:1 |
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Audio |
Encoding |
MPEG1 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 Tuner Section
|
Standard |
J.83A, J.83B, J.83C |
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RF frequency |
30~1000MHz, 1KHz step |
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J.83A |
Constellation |
16/32/64/128/256QAM |
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Symbol rate |
5.0 - 9.0 Msps |
|||||
J.83B |
Constellation |
64QAM |
256QAM |
|||
Symbol rate |
5.057Msps |
5.361Msps |
||||
J.83C |
Constellation |
64QAM, 256QAM |
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Symbol rate |
5.0 - 9.0 Msps |
|||||
Multiplexing |
1 ASI and tuner input multiplexed with local 8 channels of TS |
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PID re-mapping | ||||||
PCR accurate adjusting | ||||||
Automatic generating PSI/SI table | ||||||
|
Modulator Section
|
Standard |
J.83A, J.83B, J.83C |
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MER |
≥42dB |
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RF frequency |
30~960MHz, 1KHz step |
|||||
RF output level |
-30.0~ 10.0 dbm (81~97 dbµV), 0.1db step |
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Symbol rate |
5.0 - 9.0 Msps |
|||||
J.83A |
Constellation |
16/32/64/128/256QAM |
||||
Symbol rate |
5.0 - 9.0 Msps |
|||||
bandwidth |
8M |
|||||
J.83B |
Constellation |
64QAM |
256QAM |
|||
Symbol rate |
5.057Msps |
5.361Msps |
||||
bandwidth |
6M |
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J.83C |
Constellation |
64QAM, 256QAM |
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Symbol rate |
5.0 - 9.0 Msps |
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Bandwidth |
6M |
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Stream output |
2*ASI output, BNC interface |
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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 | ||||||
Miscellaneous |
Dimension (W× L× H) |
482mm×455mm×44mm |
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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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