TERRA TRANSMODULATOR TWIN DVB-T/T2/C - DVB-T 2XCI TTX420C

PDFIspisE-mail

http://www.terraelectronics.com/Pub/Temp/tdx420C_tdx420_ttx420C_ttx420_a.pdf

Converting of 2  DVB-T/T2/C modulated
input signals into 2 COFDM modulated DVB-T channels.

  • common interface
  • TS processing:

  service multiplexing - any input to any output
  PCR restamping
  PSI/SI regeneration
  NIT generation
  PMT version monitoring

  • Web control and SNMP monitoring
  • loop through RF distributing at input and output
  • DIN rail or wall mounting
  • robust die-cast housing
  • connectors:

  RF input/output - type F
  Ethernet control interface - RJ-45
  2xCI ports - PCMCIA (tdx420C, ttx420C)
  screw terminal block for DC entry
  power distribution bus

 
  Number of channels 2
RF Input frequency range 47-862 MHz    
LNB powering/control 12 V  100 mA    
level/impedance    40-80 dBµV / 75 Ω    
loop through gain  0 ± 1 dB    
standard  DVB-T  DVB-T2 DVB-C
modulation   QPSK

QPSK, 8PSK

QAM16,  QAM32, QAM64, QAM128, QAM256
bandwidth  7 MHz/8 MHz  7 MHz/8 MHz 
symbol rate  1 ÷ 7.2 Ms/s
code rate  1/2, 2/3, 3/4, 5/6, 7/8 1/2, 3/5, 2/3, 3/4 4/5, 5/6 -
roll of - - 15 %
 
RF output frequency range  100 - 858 MHz, by step 100 kHz
channel allocation  adjacent
level/impedence 90 ± 2 dBµV/75 Ω
return loss ≥ 14 dB at 47 MHz; -1.5 dB/oct., but not less 10 dB
modulation DVB-T QPSDK,QAM16, QAM64
spurious level  < -60 dB
loop through frequency range/loss 47-862 MHz / ≤ 2.5 dB
MER ≥ 38 dB (100-780 MHz);   ≥ 35 dB (780-860 MHz)
modulation  DVB-T QPSK, QAM16, QAM64
channel bandwidth 7/8 MHz
guard interval 1/4, 1/8, 1/16, 1/32
code rate 1/2, 2/3, 3/4, 5/6, 7/8
transmission mode  2K
 output level adjustment range 0 ÷ -15.0 dB by 1 dB step
total output level adjustment 0 ÷ -15.0 dB by 1 dB step
 
Transport stream
parameters
 max. bit rate 31670 kbps
max. PID filter count** unlimited
   
General
  Management port  standard IEE802.3 10/100 Base T
  Current consumption* 12 V  650 mA
  Operating temperature range  0 o  ÷ +50 o  C  
  Dimensions/Weight (packed)  48.5x198x112 mm/0.9 kg

*  without external DC feeding and CAM, with two CAM’s »0.95 A (for ttx420C),  »0.85 A (for tdx420C)
**  supports physical layer scrambling (PLS) and multiple input streams (MIS)

Recenzije

Trenutno nema recenzija za ovaj proizvod.