The QPSK Demodulator Model D9494 is an integral component of Scientific Atlanta's Digital Headend product line. This device works in conjunction with the QPSK modulator and digital set-tops to provide forward signaling and reverse path communications for interactive video and data systems over a two-way CATV network. Combined, the QPSK demodulator and QPSK modulator create a DAVIC-compliant headend QPSK signaling hub.
- Interfaces with the QPSK Modulator (model D9482) through ATM-25 interfaces to create a DAVIC-compliant headend signaling hub
- Provides Reed-Solomon error correction for improved performance
- Provides simple-to-use front panel controls for easy operation
- Provides provisioning, control, and status monitoring information through interface to the QPSK Modulator (model D9482) from remote Ethernet access