Cisco Cisco Titan S2 DVB-S2 Digital Satellite Receiver 数据表
Headend Systems
Spectra™ –
QAM Demodulator
QAM Demodulator
Description
The Spectra™ demodulator is a compact QAM demodulator, which can
be used for applications where access is needed to the digital stream.
Examples are transport stream processing, monitoring and analog re-
transmission.
A version is available for DVB (ITU-A), OpenCable (ITU-B) and Japan
(ITU-C).
Up to 7 different modules can be mounted into the Galaxy™ subrack
without forced cooling, expandable to 12 modules in case a blower unit
has been mounted under the chassis.
The operator may control the unit locally from the front panel using the
push buttons and LCD or remotely using the ROSA™ management
system.
be used for applications where access is needed to the digital stream.
Examples are transport stream processing, monitoring and analog re-
transmission.
A version is available for DVB (ITU-A), OpenCable (ITU-B) and Japan
(ITU-C).
Up to 7 different modules can be mounted into the Galaxy™ subrack
without forced cooling, expandable to 12 modules in case a blower unit
has been mounted under the chassis.
The operator may control the unit locally from the front panel using the
push buttons and LCD or remotely using the ROSA™ management
system.
Features
· Demodulator bringing QAM modulated signals back to DVB-ASI
· Complies fully with ITU-T J.83 standards, annex A (DVB), B
(OpenCable) and C (Japan)
· Symbol rates selectable from 4 to 7 Mbaud
· Supports all QAM constellations from 4 to 256 QAM
· Ideally suited as front-end for:
- QAM regeneration (with Quantum RF Modulator/Up-
converter)
- Transport stream manipulation (with Pegasus™ Re-
multiplexer)
- Simulcasting (with Mira™ MPEG-2 Decoder)
- Monitoring (with Pegasus Re-Multiplexer & Mira MPEG-2 Decoder)
converter)
- Transport stream manipulation (with Pegasus™ Re-
multiplexer)
- Simulcasting (with Mira™ MPEG-2 Decoder)
- Monitoring (with Pegasus Re-Multiplexer & Mira MPEG-2 Decoder)
· Performance logging according to ITU-T G.826
· Enhanced signal monitoring (Input signal level, BER, etc.)
· Dual ASI output
· Input tuneable from 50 to 860 MHz
· Compact design allows up to 12 Spectra modules in 3RU Galaxy rack
· LCD front panel control & ROSA remote control
· Hot-swappable
· Software programmable relay contact
· SNMP control through Hermes™ SNMP Bridge