Origin	China
Model Number	QM400
Brand Name	circloop

Introduction

PDM_4210 is a new generation QAM modulator with built-in multiplexer. It supports various QAM standards and multi-channel ASIDS3satellite stream input. This product adopts unique and abundant function, flexible configuration and excellent performance. It is widely applicable to stream transmission of digital cable TV and MMDS system

Main features

• Fully conform to DVB standard,compatible with GB/T170-2001GY/T106-1999ETS/EN 300 429ITU-T J.83(Annex A and B) standard
• 4 channel TS input include 2 channel ASI1 channel DS3/E31 channel satellite streamsupport MPTS/SPTS188204, automatically adjust the length
•  Build-in multiplexer,it can multiplex 4 channel inputted TS, filter program, shift PID, change program information, insert EGP etc
• Re-generate various SI/PSI table such as  PATPMTSDTTDT etc
• Re-generate PCR, PCR jitter≤40ns
•  Support 4163264128256 QAM constellation
• RF output center frequency :48860MHz,Frequency step size:100KHz
• RF output electric level: 100110dBuV, Adjustment step:1dB
• Support operation via web browser and front panel

Technical Parameter

Input interface

•  DVB-ASI2×ASI   meet EN500839 specification

                Support 188204 format

                BNC interface meet IEC169-8 specification,75Ω

•  G.7031×DS3/E3

           BNC interface meet IEC169-8 specification,75Ω

• SAT-IN:1 channel DVB-S IF input,frequency range: 950-2150MHz

             BNC interface meet IEC168-8 specification,75Ω

Output interface

•  DVB-ASI2×ASI   meet EN500839 specification

                BNC interface meet IEC169-8 specification,75Ω

•   G.7031×DS3/E3

           BNC interface meets IEC169-8 specification,75Ω

•  LOOP:1 channel DVB-S IF loop out,Frequency range: 9502150MHz

           BNC interface meet IEC169-8 specification,75Ω

 RF output interface

•   RF output interface1 channel RF output,meet ETS/EN 300 429 specification

       Central Frequency:48860MHz, Frequency step size: 100 KHz

• RF output electric level: 8090dBuV,adjustment step size:1dB
• BNC interface meets IEC169-8 specification,75Ω

Signal index

•  Fully conform to GB/T170-2001GY/T106-1999ETS/EN 300 429ITU-T J.83Annex A and   B standard
• QAM constellation4163264128256
• Filter roll-off coefficient12%15%18%
• Symbol rate≤7MbpsSignal bandwidth≤8MHz
• Modulate error rate: MER≥40dB( balanceMER≥32dB(unbalance)
• Center Frequency:48-860MHz, frequency step size 100KHz
• RF output electric level: 80-90dBuV, adjustment step size: 1dB
• Output return loss:≥12dB
• Restraint outside the band of RF≥55dBc

Control

• Front panel
•  Web browser,Ethernet interface,RJ-45 socket

General characteristics

Physical structure

• 1RU chassis19
• 48.3×26.2×4.4cm
• weight4.2kg

Power

• AC 90260VFrequency rate:4763Hz
• DC(48V24V12V)   optional
• Maximum power consumption≤15W

Environment

• Working Temperature0°C45°C
• Storage Temperature-20°C70°C
• Humidity20%90%None-condensing

Application

• Digital CATV transmission
• Digital MMDS system