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TWIST-8RC-AUTO

TWIST-8RC-AUTO Eight Channel UTP Adaptive Automatic Equalization Receiver Hub

 

TWIST-8RC-AUTO - Automatically converts a differential video signal into a balanced signal when installed on the receiving end of a UTP cable run from RD ALFA Microelectronics transmitters. The unit is rack mountable into a 1U high rack and has eight independent video receiver channels.


TWIST-8RC-AUTO receives colour or monochrome PAL video at distances up to 900m (2952ft) when combined with RD ALFA Microelectronics transmitters over compatible UTP cable (CAT5).


twist-8rc, video balun, scheme

TWIST-8RC-AUTO Receiver Hub automatically conditions the video signal, compensating for cable attenuation and ground loops.
TWIST-8RC-AUTO Receiver Hub compensates for high-frequency loses in the video-transmission line and has automatic adjustment of the video signal level. Each receiver input is galvanically isolated and has bult in lightning & surge protection. .

 

For best video quality it is recommended to use the RD ALFA Microelectronics passive transceiver balun TWIST-P1 or active transmitter TWIST-TA-M. Maximum video line length CAT5е when using TWIST8RC-AUTO Receiver Hub with a passive transceiver balun TWIST-P1 is 500 meters (1640 feet). Maximum video line length (CAT5е) when using TWIST8RC-AUTO Receiver Hub with an active transmitter TWIST-TA-M is 900 meters (2952 feet).

 

Video distance recommendations:

twist-8rc, video balun, max distance

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TECHNICAL SPECIFICATION:


ELECTRICAL: 

 Parameter Value
Amplitude of input/output video signal 0.5 - 2.5 V
Resistance for coaxial input 75 Ohm
Wave resistance of UTP cable 100 Ohm +/- 20
Frequency band 50Hz - 7 Mhz
Minimum sync pulse range for automated mode 0.08 V
Minimum colour burst pulse range for automated mode 0.05 V
Range of differential amplitude – frequency equalization at frequency 4.43 Mhz (adjustable automatically) 18 dB
Range of gain control (adjustable automatically) 9 dB
Common-mode signal rejection rate) 60 dB
Max. supply transmitter current 50 mA
Supply Voltage 230 VAC

ENVIRONMENTAL: 

Humidity: 20 to 80%, non-condensing
Temperature Operating: -30°C to +50°C

MECHANICAL: 

 

Dimensions 480x95x44 mm
Weight/td> 1600g
Material Metal

CABLE TYPE RECOMMENDATION:

Category type UTP Cat5
Impedance 100 Ohm
DC loop resistance 18 Оhm  per 100m
Differential capacitance 80 pF/m  max

 


 

High quality CCTV signal conditioning at distances up to 900 metres (3000 feet)


twist-8rc, video balun,




High-quality reception of video signals at a distances of up to 900 metres (2952 feet) using Cat5 UTP cable
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Automatic frequency correction of video signal to ensure true colour rendition
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Automatic frequency correction of video signal level to ensure correct brightness levels
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Receiver has built in LED indicators for video signal presence and automatic operation mode
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Fast black level clamping of the video signal
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Receiver’s inputs are galvanically isolated and have built-in ground loop isolation, lightning & surge protection. This protects equipment from damage in harsh industrial applications ___________________

CE

 

 

 

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