Video Interfaces - Cisco D9040 User And Service Manual

Video Interfaces

Composite Video Input
The composite video input interface accepts a 625-line PAL (B, D, G, H, I, K, M and
N) or 525-line NTSC (M)or J-NTSC (for Japan) formatted input signal.
SDI Video Input
The SDI input interface accepts a 270 Mbit/s SDI formatted video input (D-1). The
SDI module extracts embedded audio for further processing by an audio encoder
module.
VBI and Related Signals
The D9040 Encoder supports teletext B, DVB-VBI Teletext, Transparent Lines, VPS,
WSS, VII and Closed Captioning.
Encoding
The video encoding includes:
• Multiple resolutions
• High quality also at very low bit rates
The AFD feature requires that you have installed the VBI option.
Auto-concatenation
The D9040 Encoder optionally supports auto-concatenation of previously encoded
picture material. Auto-concatenation makes it possible to align I-frames of encoded
pictures with I-frames of previously encoded input material. By detecting the
position of I-frames in the incoming video and making proper adjustments to the
GOP, the I-frames of the encoded material can be aligned to the input. The GOP
adjustments are performed seamlessly.
This feature decreases the degradation of video quality usually seen when two or
more encoders are cascaded (concatenated).
4020024 Rev C
Introduction 2-7