Overview:
This modulator is a new generation of Multifunctional Modular IP QAM modulator, which can receive TS from IP interfaces, and then multiplex, scramble and process it with channel coding. It adopts our newly developed functions such as “Module Management”, device scrambling, and channel modulation. The flexible customization and high expansibility can satisfy the user’s current and future DTV system requirements. The product is mainly applied to the DTV network head end room, edge of DTV backbone network, and DTV branch head end room.
Specifications
Common Technical Specifications
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Characteristic
|
Properties
|
Specifications
|
|
Power Supply & Consumption
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AC Input Voltage
|
110～230VAC
|
|
AC Input Frequency
|
50～60Hz
|
|
Power Consumption
|
50W
|
|
No. of Power Supply Modules
|
2
|
|
Operating/Storage Environment
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Operating Temperature
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0℃～55℃
|
|
Storage Temperature
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-20～70℃
|
|
Air Pressure
|
86～106KPa
|
|
Humidity
|
10%～90%
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Interfaces
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Characteristic
|
Properties
|
Specification
|
|
Data Input Interface
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Connector
|
RJ45
|
|
Quantity
|
1
|
|
MAC
|
IEEE 802.3 1000BASET
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Network Protocol
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Multicast: IGMPv2 (RFC 2236)
Unicast: UDP (RFC 768)
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Input Data Rate
|
0~800Mbps (MPEG Packet)
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|
Data Input Interface
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Connector
|
SFP
|
|
Quantity
|
1
|
|
MAC
|
IEEE 802.3 1000BASET
|
|
Network Protocol
|
Multicast: IGMPv2 (RFC 2236)
Unicast: UDP (RFC 768)
|
|
Input Data Rate
|
0~800Mbps(MPEG Packet)
|
|
Management Port
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Connector
|
RJ45
|
|
Quantity
|
1
|
|
Functionality
|
Management and CAS
|
|
MAC
|
IEEE 802.3 1000BASET
|
|
Network Protocol
|
TCP/IP
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|
Application
|
HTTP4.0/HTML1.1/XML/CGI(Web Management)
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Multiplexing Specifications
|
Characteristic
|
Properties
|
Specification
|
|
TS input
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Input TS number
|
1~64
|
|
Input TS distinguish ability
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Unicast: by UDP port number
Multicast: by destination IP address
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|
Total services number(total)
|
1~1024
|
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Service number per input TS
|
1~64
|
|
TS output
|
Output TS number
|
1~16
|
|
Output TS distinguish ability
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Unicast: by UDP port number
Multicast: by destination IP address
|
|
Total services number(total)
|
1~512
|
|
Service number per output TS
|
1~32
|
|
PSI for output TS
|
Standard(syntax and send period)
|
ISO/IEC 13818-1
DVB SI(ESI EN300468)
|
|
Table type
|
PAT/PMT: Generated automatically
SDT: Generated automatically
NIT: Generated automatically
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Scrambling & CAS interfaces
|
Characteristic
|
Properties
|
Specification
|
|
Scrambling
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Scrambling algorithm
|
DVB-CSA
|
|
Scrambling bit-rate per TS
|
0~60Mbps
|
|
Embedded scramblers number
|
16
|
|
Table update
|
CAT/PMT
|
|
CAS Interface
|
Simul-Crypt CAS number
|
1~2
|
|
SCS interface
|
ETSI TS 103 197
|
|
ECMG interface
|
TCP
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|
EMMG interface
|
TCP/UDP
|
|
EMM bandwidth
|
0~1Mbps/TS
|
RF Output Technical Specifications
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Characteristic
|
Properties
|
Specification
|
|
RF Output
|
Output Frequency
|
48MHz~860MHz (Step size is 1MHz)
|
|
Maximum Output EPL (main)
|
90-108dBuV (16 Channels，0.5dB as step size)
|
|
Maximum Output EPL (monitoring)
|
70-90dBuV (16 Channels，0.5dB as step size)
|
|
Reflection Loss
|
≥12dB
|
|
Carrier Suppression
|
>58dB
|
|
MER
|
≥38dB（QAM Constellation: 64QAM Symbol Rate: 6.857MBaud）
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SNR（Out of band）
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≥50dB
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|
Gain fine-tune
|
-2.5～2.5dB (Step size is 0.25dB)
|
|
Phase Noise
|
@1KHz
|
≥90dBc/Hz
|
|
@10KHz
|
≥100dBc/Hz
|
|
@100KHz
|
≥105dBc/Hz
|
|
Accuracy of center frequency
|
±25KHz
|
