NDS3340 4 in 1 QAM Modulator
Outline
NDS3340 4 in 1 QAM is a cost effective integrated QAM modulator designed by DEXIN Company. This device is integrated up to 4 channel QAM modulating carrier outputs, in which each carrier has independent signal channel encoding and direct RF output. Therefore, the device is featured with excellent RF performance index. It supports 4 channel ASI inputs. Alternatively, this device can take various RF inputs of DVB-S/DVB-C/DVB-T signals by installing the relevant build-in tuners.(user can see the different rear panel illustrations in chapter 2.2) Hence, one PCS 4 in 1 QAM modulator can work as 4 standalone QAM modulators, significantly reducing the network operators' head-end cost. NDS3340 can also support local and remote control to set its working parameters.
1.Fully complying with EN300429/ITU-T J.83A
2.4 adjacent channel QAM carrier
3.4×ASI inputs and 188/204byte TS packet support
4.DVB-S/-S2/-C/-T RF input (optional)
5.Accurate PCR adjusting support
6.16/32/64/128/256 QAM constellation support
7.Symbol rate adjustment range: 5.0Msps~7.0Msps
8.PSI/SI editing support
9.RF output frequency range: 48MHz~860MHz in 1kHz step
10. RF output level range: -16dBm~0dBm(each carrier) in 0.5dB step
11. Excellent RF output performance index, MER≥40dB
12. LCD & Keyboard operation
13. NMS support
Specifications
Input | 4ASI Input, BNC Interface(75Ω) DVB-S/DVB-S2/DVB-C/DVB-T tuner is optional | |
Modulation | QAM channel | 4 |
Standard | EN300429/ITU-T J.83A | |
Symbol rate | 5.0~7.0Msps,1ksps step | |
Constellation | 16/32/64/128/256 QAM | |
FEC | RS(204,188) | |
RF Output | Port | F Type,75Ω impedance |
Frequency range | 48~860Mhz,1khz step | |
Output level | -16dbm~0dbm(each carrier),0.5db step | |
MER | ≥40db | |
ACLR(adjacent channel leakage ratio) | −60dBc | |
System Function | LCD/Key board, network management, Chinese and English language | |
Ethernet software upgrade | ||
General | Dimensions (WxDxH) | 482mm×455mm×44.5mm |
Weight | 6.7kg | |
Temperature range | 0~45℃(operation),-20~80℃(storage) | |
Power Requirements | AC110V±10%,50/60Hz orAC220V±10%,50/60Hz | |
Power consumption | ≈25W | |
