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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-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:
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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 |
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High quality CCTV signal conditioning at distances up to 900 metres (3000 feet)
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 ___________________
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