Compact Modular SMATV Headend

WDH-1800AS is a compact modular SMATV headend, supporting up to 16 channels in one 19” 4U chassis. It integrates multiple functions including DTV signal reception, descrambling, decoding and analog modulation. WDH-1800AS has various options for RF input front end, such as DVB-S/S2/T/T2/C, ATSC, ISDB-T and DMBT etc., moreover, analog AV and IP input are also available. Equipped with dual DVB-CI, the WDH-1800AS module can decrypt multiple pay TV services and loop through the TS to the neighbor modules through internal cables for further processing. Each WDH-1800AS module can process two MPEG-2 or H.264 HD/SD services and downscale the HD content to SD, then modulate and output via two adjacent analog RF channels. WDH-1800AS supports various analog modulation standard, such as PAL B/G, PAL D/K, NTSC, and SECAM etc. Each WDH-1800AS module can be controlled and supervised by SNMP and HTTP WEB.

Main Feature

• Support various analog modulation standard, such as PAL B/G, PAL D/K, NTSC, and SECAM etc.
• DVB-S/S2/T/T2, ATSC, ISDB-T, DMBT front end option
• Support IP input and analog AV input
• MPEG-2, H.264 HD/SD decoding
• Two adjacent analog RF channel output per module
• Dual DVB-CI for multi-decryption
• TS loop through between modules
• Functional module hot-swappable
• Web, SNMP remote control or handheld programmer unit local control
• 19” 4RU chassis compact modular design, supporting up to 8 modules in one chassis
• Redundant power supply
• Intelligent temperature control cooling system
• Stand alone function of each module
• Cost-saving by backward compatible with new modules
• On site software update through IP or USB