DDM-840

While generating a multitude of signals — including RGB and YPBPR analog component video, NTSC analog composite video and serial digital for monitoring the video program selected — the DDM-840 also decodes the transport stream’s audio programs to two analog stereo pairs and two digital audio outputs as Dolby® Digital (AC-3 TM) passthrough or PCM. External SMPTE 310 or DVB-ASI transport streams may be connected to the DDM-840 for decoding as well.

The DDM-840 front panel interface enables quick setup through a direct entry keypad and navigation keys. Front panel indications are included for the current channel number, output format, received short channel name, program number and the received programs available up to 3 programs.

The demodulator’s front panel features a 2x40-character LCD that indicates the status of signal-to-noise ratio (SNR) and bit error rate (BER). External communications support configuration through an intuitive web browser GUI, and the resident SNMP agent — via the 10/100Base-T Ethernet connection — enable straightfor-ward integration into headend, station, or uplink network control and monitoring systems, with real-time clock for time stamp on alarms.

The DDM-840 program information table display includes PAT, PMT, MGT, VCT, EIT, STT and EPG. There is also a menu selection allowing the closed captioning to be decoded and displayed on the video output. The small 1RU footprint of the DDM-840 chassis provides a space-efficient and economical solution for cable, satellite and broadcast facilities.