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DTV Headend Equipment |
H508 QAM(DVB-C) Modulator with Demodulator
& Re-Multiplexer |
BOY-H508 QAM(DVB-C) Modulator with
Demodulator & Re-Multiplexer The BOY-H508 QAM(DVB-C) Modulator, which
combines DVB-S/DVB-S2/DVB-C/DVB-T demodulator(optional), DVB TS PID
Filter and QAM(DVB-C) Modulator in a single unit. It supports 2 input
modes, including 1 DVB-S/-C/-T signal, 2 ASI TS inputsÖ¬and then
Re-Multiplexing and Modulates the input signal to QAM(DVB-C) signal.
It also supports 2 output modes, including DVB-ASI TS output, RF output.
It can obtain the PSI/SI information coming from each input port and
multiplex them up to 1 TS with PCR Error Correction.It is mainly applied
to transmit DVB-S/DVB-S2/DVB-C/DVB-T signal to HFC, MMDS and MUDS
systems. LAN control and monitoring are achieved by TCP/IP, SNMP and
HEMS*. (* Head-end Equipment Management System, a BOY' s proprietary
software)
Features
* Ethernet WEB Management Interface (Compatible with SNMP)
* DVB TS processing and re-multiplexing
* TS frequency range: 1 Mbit/s~54 Mbit/s
* The QAM modulation chosen among 16, 32, 64, 128 and 256 level numbers
* QAM symbol rate: 3.5~7.10 Bauds
* Output full frequency (48~860 MHz) RF CATV signal
* RF signal output level: 100~113 dB (adjustable)
* User friendly operation interface through LCD monitor
* Automatic last channel memory
* Store up to 99 channel parameters í
Rear panel
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Technical Data |
Specifications
DVB-S Demodulator
Input Frequency RangeÖ::: 950~2150 MHz/48~860
Input level -25 ~ -65 dBm
Input impedance 75¦¸ Connector F connector
Symbol rate 2~45 MBauds
Rolling Off Factor 0.35
Punctured Rates 1/2,2/3,3/4,5/6,7/8
De-Interleaving I=12
DVB-C Demodulator
Input frequency range::í 50M~860MHz
Input impedance 75¦¸, IEC-female (7/8MHz) or F-female (6MHz)
Input symbol rate 1ˇ«7Mbps (PAL), 1ˇ«6Mbps (NTSC)
ConstellationÖ:: J.83A or J.83B:
Tuner bandwidth 6 MHz or 7 MHz or 8 MHz factory option
FEC code rate 1/2, 2/3, 3/4, 5/6 or 7/8; K=7
Input signal level -15ˇ«+15dBmV
DVB-T Demodulator
Input frequency range 174~230MHz, 470~860MHz
Input impedance 75¦¸, IEC-female
Input symbol rate range 4.98ˇ«31.67Mbps (Ę88MHz bandwidthí))
Constellation QPSK, 16-QAM, 64-QAM
Tuner bandwidth 6, 7 or 8MHz factory option
Input signal level -75 to -20dBmV
FFT mode 2K/8K, auto-detected
Guard interval 1/4, 1/8, 1/16 or 1/32, auto-detected
FEC code rate 1/2, 2/3, 3/4, 5/6 or 7/8, auto-detected
QAM(DVB-C) Modulator
Input Bit rate: 1ˇ«7Mbps (PAL), 1ˇ«6Mbps (NTSC)
QAM mode: 16, 32, 64, 128, 256 QAM
Bandwidth :6 MHz, 7 MHz or 8 MHz
FEC code rate :1/2, 2/3, 3/4, 5/6, 7/8; K=7
RF output connector: 75¦¸, F-type
Output level :100~113 dB adjustable
RF Harmonics and Spurious: >60dBc
Output return loss : >14dB
Input ASI TS
2 DVB ASI TS Input
Connector: 75¦¸Ö,,,BNC
Available Bit Rate :1M~54Mb/s
Data Mode :BYTE or BURST
Packet Length: 188 or 204 byte
Signal Level :800mV
Return Loss :>10dB
Output ASI TS
1 DVB ASI TS Output
Connector :75¦¸,,,BNC
Available Bit Rate :1M~54Mb/s
Data Mode :BYTE or BURST
Packet Length :188 or 204 byte
Signal Level: 800mV
Return Loss: >10dB
General
Operating Temperature: 0~45ˇć
Storage Temperature: -20~70ˇć
Humidity: <85%
Power Supply: AC 90~260V 50Hz~60Hz, 45W
Dimensions: 400mmˇÁ440mmˇÁ44mm
Weight: 4Kg
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