Cisco Model 6275 Frequency Agile Demodulator (NTSC) Datenbogen

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Headend Systems 
 
 
 
 
Model 6275 
Frequency Agile Demodulator
 
 
 
 
 
 
 
 
 
 
 
 
Description 
The Model 6275 Demodulator is a high-performance, frequency agile demodulator designed for CATV, off-air as 
well as IF applications. Your headend will deliver superior quality video signals free from quadrature distortion by 
using the demodulator’s synchronous detection capability. The Model 6275 Demodulator’s IF section uses SAW 
filter technology to provide optimum VSB detection performance. In addition to providing off-air demodulation for 
primary applications, the Model 6275 Demodulator is ideal for backup of existing fixed channel demodulators. The 
Model 6275 Demodulator can also be used as a CATV headend signal monitor for loss detection and quality 
assurance of delivered video. 
 
 
 
Features 
·  Tuner covers all range from 55.25 MHz to 801.25 MHz 
·  Predefined Channels for CATV and off-air 
·  Random access, search or single up/down tuning 
·  HRC/IRC offset tuning with storage capability 
·  Demodulation with automatic frequency tilt correction (+/- 2 dB) 
·  2 Video outputs with auto AGC or manually adjustable between -3 dB and +3 dB 
·  Audio Line output, adjustable between -6 dB and +6 dB 
·  Simultaneous outputs provided for BTSC L&R, SAP, wideband and 4.5 MHz audio 
·  Headphone output on the front (BTSC/SAP selection and level via soft keys) 
·  ZRP function, line selectable 
·  Keyboard and LCD Control  
·  Full monitoring and control with ROSA™/TNCS via SNMP 
·  Full range 100-240 V AC power supply or -48 V DC power supply