Broadcast Edgeqam Modulator

Product Profile

The DIBSYS's IPQ6250 is a new generation of modular & high density Edge QAM modulator combining TS-over-UDP/RTP reception, transport stream re-multiplexing, scrambling,PSI/SI processing and 16/32/64/128/256QAM modulation in a 1U rackmount unit. It supports up to 48 QAM channels by using three external pluggable 16 QAM modules, each of QAM modules supporting up to two Gigabit copper interfaces. Moreover, the IPQ6250 supports 1+1 redundant & hot-swappable power supplies for high reliability and stability of system. Its pay-as-you-grow modular design, flexible configurations and licensing mechanism are making the IPQ6250 unparalleled scalability, reliability and system performance to cable operators. The adopts Web browser and SNMP management with remote monitoring and control that can greatly reduce management time and operating expenses (OPEX) of operators.
 
With the IPQ6250, cable operators can be ensured that they will have a scalable, reliable, high performance video stream services for years into the future. It can be applied to cable DTV head-ends, sub head-ends and VOD networks.
 
Key Features  
                      
---1RU modular design, supporting up to three pluggable QAM modules
---16 QAM output channels per module, up to 48 QAM output channels
---Processing module with Two 1000Base-T ports
---Dual copper interface per QAM module,
---Supports multiplexing, pass-through, scrambling,PSI/SI insertion,and QAM modulation
---Up to 64 programs per QAM channel and 16 PIDs processing capability per program
---Supports SD and HD audiovisual streams simultaneously
---ITU-T J.83 Annex A/B/C compliant, 6MHz or 8MHz bandwidth
---Multiplexed or scrambled TS over UDP output
---Non-adjacent Frequency out
---Vod  Service (option)
---Up to four DVB SimulCrypt CAS(s) and complies with DVB-CSA
---Multiple firmware options to enable up to four scrambling channels
---Scrambling processing up to 1024 programs
---Supports UDP/ARP/ICMP/IGMP protocols
---PID filtering, pass-through, PCR auto-correction
---Excellent RF performance, MER≥42dbü Web browser management for local and remote management, monitoring and control

Main Application

---Digital headend system base on IP network
---Broadcast Application built-in multiplexing and scrambling function
---MPEG-TS transmission over local IP network
---VOD Edge qam modulator

QAM Reference Information
 
J.83 Annex A: Table of constellation, bandwidth, symbol rate and bit rate.  
Channel Bandwidth = 1.15 * Symbol Rate  Symbol Rate = Output Bit Rate/m
m = 2,4,5,6,7,8 Corresponding:QPSK, 16QAM, 32QAM, 64QAM, 128QAM and 256QAM
 
8MHz Maximum Output Bit RateMaximum Valid Bit Rate = Output Bit Rate * 188 / 204
  
Technical Specifications