Scientific Atlanta D9380 PowerVu Digital Video Modulator QPSK 100-240V

Scientific Atlanta D9380 PowerVu Digital Video Modulator QPSK 100-240V

The Scientific Atlanta D9380 is a rackmount PowerVu Digital Video Modulator designed for professional digital video distribution over satellite or cable networks. It integrates a QPSK analog modulator, a digital encoder, and an interface module into a single 3U chassis, providing a compact platform for encoding, modulating, and outputting a digital video signal. Scientific Atlanta's PowerVu platform was widely used in broadcast headend and contribution link applications.

Specifications & What's Included

• Make / Brand: Scientific Atlanta
• Model: D9380 (PowerVu Digital Video Modulator)
• Assembly Number: 523136
• QPSK Modulator Assembly: ASSY 521522
• Encoder Assembly: ASSY 523446
• Interface Assembly: ASSY 521533
• Front Panel Logic Board: ASSY 521599
• Modulation Type: QPSK
• Power Input: 100–240V AC, 47–63 Hz, 1.5A Max
• Fuse: Type T (Slow Blow), 250VAC, 2.0A
• Front Panel: Backlit LCD status display, 12-key numeric keypad (with H/O/P function keys), 5 soft-key buttons
• Front Panel Indicators: ALARM LED (red), MUTE LED (red)
• Front Panel Connector: IF Monitor BNC output
• Rear – QPSK Modulator section: I INPUT (BNC), Q INPUT (BNC), IF OUTPUT (BNC), IF MONITOR OUTPUT -20 dBm typ. (BNC)
• Rear – Encoder section: I OUTPUT (BNC), Q OUTPUT (BNC), SABUS (DB-15 connector)
• Rear – Interface section: SWIF P (BNC), SWIF S (BNC), SWIF 2 port, Ethernet (RJ-45), Contact Closure terminal block
• Form Factor: 3U rackmount chassis
• Manufacturer: Scientific Atlanta, Network Systems Group, Norcross, GA
• CE marked (visible on rear chassis label)

Applications

The Scientific Atlanta D9380 PowerVu Digital Video Modulator is part of Scientific Atlanta's PowerVu product line, a widely deployed platform for professional digital video encoding and distribution. Systems like the D9380 were used in broadcast contribution links, satellite uplink facilities, cable headends, and private video networks to encode video signals into a digital QPSK-modulated IF output for transmission to satellite transponders or downstream distribution equipment. The PowerVu platform supports Scientific Atlanta's SWIF (Scientific Atlanta Wideband Intermediate Frequency) interface architecture, which allows multiple modulator and receiver chassis to share IF signal paths in a larger headend environment. This type of equipment was central to the transition from analog to digital broadcast infrastructure that took place through the 1990s and 2000s. Today, D9380 units remain in use in legacy cable and private satellite network installations and are sought for maintenance, spare-parts, and system integration purposes.