Data Sheet

Cisco PS2000 4:2:0 MPEG-2
A/V Decoder and
Cisco PS2005 4:2:2 MPEG-2
A/V Decoder

Cisco Video Networking Systems are the ultimate solution for customers who need to distribute reliable, high-quality video services over a digital broadband network.

The Cisco PS2000 4:2:0 MPEG-2 Audio/Video (A/V) Decoder and Cisco PS2005 4:2:2 MPEG-2 A/V Decoder are part of the VN 2900 Video Networking System-a high-density video encoder and decoder that receives audio and video streams, performs video processing, and adapts the streams to any standards-based digital broadband network.

The Cisco PS2000 and PS2005 Decoders provide real-time MPEG-1 and MPEG-2 audio and video decoding at a sustained data rate of up to 15 Mbps, which is ideal for video courier, monitoring, and surveillance applications.

The Cisco PS2000 and PS2005 Decoders receive multiplexed audio and video streams from the system network. The audio and video streams are demultiplexed and stored in separate audio and video buffers until they are ready to be decoded based on their timestamps. The data is buffered to account for network jitter and delay, with the amount of delay adjusted based on the amount of jitter and available memory. Audio and video streams undergo separate decompression and are sent to the appropriate outputs on the module.

The Cisco PS2000 and PS2005 Decoders output composite analog video and S-Video in both NTSC and PAL formats. The decoders also output analog stereo audio through RCA connectors. All outputs are accessible from the front panels of the modules.

The Cisco PS2000 and PS2005 Decoders have a Voltage Control Oscillator (VCXO) precision-variable clock that corrects jitter caused by network variable delays. This feature ensures that audio and video frames are not dropped or duplicated in the encoded stream and is essential for the high-quality demands of broadcast and multicast network environments.

Table 1 is a summary of the Cisco PS2000 and PS2005 Decoder features and benefits.

Table 1: Cisco PS2000 and PS2005 Decoder Feature and Benefit Summary.

Feature	Benefit
MPEG-1 and MPEG-2 (4:2:0 MP@ML) decoding	High-quality audio and video decoding
3:2 inverse telecine support	Optimal compression for film
Closed captioning extraction	Superior retention of closed captioning information