UCM4540
Digital QAM Modulator / Upconverter
 

The model UCM4540 is designed for Digital video on demand applications. It is comprised of a single versatile QAM Modulator and QAM Upconverter. The fully digital modulator may be configured for QPSK, 16, 32, 64, 128, or 256 QAM operation. The input MPEG2 Transport streams are encoded for error correction, modulated and upconverted into 6 or 8 MHz bandwidth channels in the 53 to 858 MHz frequency range. The RF output level is
+61 dBmV maximum.

      

The UCM4540 is remotely controllable over a serial RS232, RS485, Terminal and optional SNMP. Full control of the unit, including output frequency and level as well as modular parameters such as modulation type, symbol rate, excess bandwidth, encoding, etc. is accomplished via the front panel or WaveCom's Demonstration MultiAgile software. Status and alarm data can also be viewed either from the front panel or remotely. It offers a very compact solution for Demand video applications on a cable system.

    
 
 

Features include:

Independent QAM Modulator and Upconverter in a 1U chassis
Fully agile upconverter covers entire frequency range of 53 to 858 MHz
Fully synthesized tuning for drift free operation (12.5 kHz step size)
Selection of data inputs including DVB parallel / synchronous serial, and DVB-ASI
Both DVB, DAVIC (ITU-T J.83 Annex A) and Digicipher II™ (ITU-T J.83 Annex B) encoding standard
Includes nonvolatile memory to save configuration through power down and power loss
Local control via LCD and 4 soft touch push buttons
Programmable, remotely controllable units using RS232, RS485, Terminal or optional SNMP
High reliability, state-of-the-art design using Microstrip MMIC and Surface Mount technology
Conservative component derating and 100% burn in help ensure reliable operation
Specifications