Cisco PULSAR MKII - TV Modulator (BG) (PAL) データシート
Introduction
The Models 9825M and 9825S Modulators and Model 9815 Rear
Interface Module (RIM) are Scientific-Atlanta’s latest additions to our
well-known product family of Continuum
Interface Module (RIM) are Scientific-Atlanta’s latest additions to our
well-known product family of Continuum
Headend Systems. The
Continuum Headend System product family provides users with a
vertically oriented, compact, full-featured ensemble of headend
functions. Continuum products give today’s video information
providers an integrated, high-performance platform for many vital
headend applications.
vertically oriented, compact, full-featured ensemble of headend
functions. Continuum products give today’s video information
providers an integrated, high-performance platform for many vital
headend applications.
Description
The Models 9825M (mono) and 9825S (stereo) Modulators have been
specifically designed to provide support for versatile system
architectures where space saving efficiency is of major importance.
The Model 9825M Modulator is a full-featured modulator that provides
a monaural NTSC television signal on any selected CATV channel
between 50-870 MHz. The Model 9825S Modulator has an integrated
BTSC stereo encoder that mounts internally, in place of the mono
audio board. It is designed for cable television headends that must
encode locally originated or satellite-delivered stereo audio
programming in BTSC stereo format. An optional SAP (Second Audio
Program) circuit is also available as an integrated feature.
The Models 9825M and 9825S Modulators utilize some of the latest advancements in Scientific-Atlanta technology.
Both models provide a new upconverter design that contains a custom ASIC (Application Specific Integrated
Circuit). The use of ASIC technology allows the upconverter section of the modulator to consume approximately
half the power and is less than half the size of traditional upconverter circuits. The new design maintains excellent
RF performance with the added benefit that it can tune from 50-870 MHz in a single device. The Model 9825S
Modulator stereo version integrates a true DSP (Digital Signal Processing) BTSC Stereo Encoder and optional SAP
module into the modulator. The use of DSP technology for stereo encoding provides unprecedented improvements
in stereo separation and distortion that were previously unachievable. Furthermore, by digitally generating the
audio subcarrier, no critical calibration of the BTSC signal will ever be required.
The Models 9825M and 9825S Modulators process a baseband video and audio signal to produce a VSB signal at
a selected CATV channel frequency. At its inputs, a fully equipped Model 9825S Modulator can accept any NTSC
standard video input plus mono, left, right, and SAP baseband audio. Other available inputs include 4.5 MHz audio
subcarrier and an external IF port that can accept either digital or composite IF (analog) signals. The Model 9825M
Modulator can be used with external stereo encoders or can be upgraded to a Model 9825S Modulator with the
installation of a stereo encoder upgrade kit.
Note: Model 9811/9814 Controller Modules are required to take advantage of the additional features and
capabilities of the Series 9825 Modulators. Existing Continuum Model 9810/9813 Controllers can be upgraded to
be compatible with Series 9825 equipment. Contact Scientific-Atlanta factory service for details.
specifically designed to provide support for versatile system
architectures where space saving efficiency is of major importance.
The Model 9825M Modulator is a full-featured modulator that provides
a monaural NTSC television signal on any selected CATV channel
between 50-870 MHz. The Model 9825S Modulator has an integrated
BTSC stereo encoder that mounts internally, in place of the mono
audio board. It is designed for cable television headends that must
encode locally originated or satellite-delivered stereo audio
programming in BTSC stereo format. An optional SAP (Second Audio
Program) circuit is also available as an integrated feature.
The Models 9825M and 9825S Modulators utilize some of the latest advancements in Scientific-Atlanta technology.
Both models provide a new upconverter design that contains a custom ASIC (Application Specific Integrated
Circuit). The use of ASIC technology allows the upconverter section of the modulator to consume approximately
half the power and is less than half the size of traditional upconverter circuits. The new design maintains excellent
RF performance with the added benefit that it can tune from 50-870 MHz in a single device. The Model 9825S
Modulator stereo version integrates a true DSP (Digital Signal Processing) BTSC Stereo Encoder and optional SAP
module into the modulator. The use of DSP technology for stereo encoding provides unprecedented improvements
in stereo separation and distortion that were previously unachievable. Furthermore, by digitally generating the
audio subcarrier, no critical calibration of the BTSC signal will ever be required.
The Models 9825M and 9825S Modulators process a baseband video and audio signal to produce a VSB signal at
a selected CATV channel frequency. At its inputs, a fully equipped Model 9825S Modulator can accept any NTSC
standard video input plus mono, left, right, and SAP baseband audio. Other available inputs include 4.5 MHz audio
subcarrier and an external IF port that can accept either digital or composite IF (analog) signals. The Model 9825M
Modulator can be used with external stereo encoders or can be upgraded to a Model 9825S Modulator with the
installation of a stereo encoder upgrade kit.
Note: Model 9811/9814 Controller Modules are required to take advantage of the additional features and
capabilities of the Series 9825 Modulators. Existing Continuum Model 9810/9813 Controllers can be upgraded to
be compatible with Series 9825 equipment. Contact Scientific-Atlanta factory service for details.
Continuum
Headend Systems
Model 9825M NTSC Modulator (50 – 870 MHz)
Model 9825S NTSC Modulator (50 – 870 MHz) with
Integrated Stereo Encoder
Model 9815 Rear Interface Module (RIM)
Model 9825S NTSC Modulator (50 – 870 MHz) with
Integrated Stereo Encoder
Model 9815 Rear Interface Module (RIM)