Input:ASI Output:DVB-C
Outline
DX308A 8-in-1 IP Mux-QAM module is the latest generation QAM modulator with high integrated level and performance. The modular design of this device makes each daughter card stand-alone when operating. Each daughter card receives up to 256 SPTS or 8 MPTS input over GbE and combines 8 multiplexing modules and 8 QAM (DVB-C) modulator modules, which can output 8 adjacent channel carriers (30M~860M) through the two RF output interface.
With all these advanced features, DX308A is an ideal product for Gigabit Ethernet-based DTV networks.
Features
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Dual AC power supply
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1 GE input (RJ45interface) or SFP for each daughter card
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Supports up to 256 SPTS or 8 MPTS input over UDP (1 MPTS or 32 SPTS for each channel)
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Supports unicast and multicast, supports IGMP v2/v3
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Max 840Mbps for all input
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Supports MPEG2/4 multiplexing (MPTS pass through, SPTS re-multiplex)
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Support multiplexed TS over UDP output
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8 adjacent QAM carriers output, compliant to DVB-C(EN300 429) and ITU-T J.83A/B/C
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Supports accurate PCR adjusting
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Supports PID filtering, remapping and PSI/SI editing
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Supports up to 180 PIDS remapping per channel
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Supports RS(204,188) encoding
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Excellent RF performance, MER≥40db
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Modular design,1U chassis support 3 daughter cards
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Support net management (NMS)
Specifications
|
Input |
Interface |
1GE input，RJ45 interface or SFP |
|
Transport protocol |
TS over UDP, uni-cast and multicast, IGMP v2/v3 |
|
|
Transmission code |
Max 108Mbps per channel Max 840Mbps amount channels |
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Multiplexing (SPTS) |
Input channel |
8x32 SPTS or 8x1 MPTS |
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Output channel |
8 |
|
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Maximum PIDs |
180 per output channel |
|
|
Functions |
PID re-mapping( auto/manual optional) |
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PCR accurate adjusting |
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Automatic generating PSI/SI table |
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Modulator Parameters |
QAM channel |
8 |
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Standard |
DVB-C(EN300 429), ITU-T J.83A/B/C |
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|
Symbol rate |
5.0~9.0Msps, 1ksps stepping |
|
|
Constellation |
16QAM/32QAM/64QAM/128QAM/256QAM |
|
|
FEC |
RS (204, 188) |
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RF output |
Interface |
2 F type connectors |
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RF range |
30~860MHz, 1kHz stepping |
|
|
Output level |
-16dBm~0dBm(per QAM carrier), 0.5dB stepping |
|
|
MER |
≥ 40dB |
|
|
ACLR |
-55dBc |
|
|
System |
Supporting NMS management |
|
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General |
Demission(WxLxH) |
630x440x44.5mm |
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Weight |
9 kg |
|
|
Temperature |
0~45℃ (operation), -20~80℃(storage) |
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Power supply |
AC 100V±10%, 50/60Hz AC 220V±10%, 50/60Hz |
|
|
Consumption |
30W |
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Principle Chart
Order information:
|
|
DX328 |
DX318 |
DX308A |
DX328A |
DX324T |
|
multiplexing |
* |
* |
* (SPTS) |
* |
* |
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DVB scrambling |
* |
* |
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|
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QAM×8 modulation |
* |
|
* |
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8VSB×8 modulation |
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|
|
* |
|
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DVB-T×4 modulation |
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|
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* |
