OBSOLETE
Data-Link™ Viewer & Sender
One of a family of fine products, the DATA LINK can send high quality CCTV signals with a protocol independent RS485 half duplex data stream and configurable alarm data channel (not just contact closure and can cope with multiple inputs) all on ONE coaxial cable. 12 volt DC power for cameras and accessories is also provided down the SAME coaxial cable.
SNT’s Data Link System allows one coaxial cable to be used for the simultaneous conveyance of a high quality video channel, RS485 data channel, alarm signal data channel, status monitor channel and DC power in real time.
Data Link assures excellent signal quality, irrespective of distance, thanks to the unique fully automatic equalization and correction system. Operating distances may be up to 600 metres whilst providing 12V DC power to the camera. The half duplex RS485 channel may be utilised for remote camera set-up/adjustment, access control etc.
Comprising of two main parts; the remote unit (sender) is connected to the camera and local unit (viewer) is connected to the control operating system.
Data Link provides the innovation, simple installation and excellent picture quality that you expect from SNT products. Data Link has complete power and misconnection protection circuitry and eliminates and protects from hum interference and ground loop problems.
Data-Link™ Specification
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Type
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Viewer
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Sender
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Electrical
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Viewer Input Voltage
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40 volts DC from | AC Adaptor | 100-240 volts AC | 47 - 62 Hz
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Sender Output
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12 volts DC @ 1 amp
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Overvoltage, Overcurrent, Short, Open, Misconnection Detection Circuitry.
Gas and silicon over-voltage protection devices fitted to both Sender and Viewer Link connectors
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Video Signal
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Channels and Standards
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1 | EIA, CCIR, NTSC, PAL
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Response and Noise
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5 Hz - 6 MHz | s/n > 54dB
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Input/Output Level
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1V p-p
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Input/Output Impedance
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75 Ω unbalanced
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Overall Gain
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Unity
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Data Signal
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Standarts Supported
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RS485, Half Duplex, 2-wire | Data Rate up to 38,400bps
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Alarm Signal
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Number of Channels
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1
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Alarm Input Type
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Normally Open, Normally Closed or, | Selection via Independent external switches
Impedance Bridge (1k Ω term) on Sender unit
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Alarm Output Type
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Normally Open, Normally Closed | User selectable via dry relay
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Link Status Signal
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Parameters Monitored
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Power, System, Link fail. | Automatic continuous monitoring
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Alarm Output Type
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Normally Open, Normally Closed | User selectable via dry relay
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Connectors
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Video/ DC Link
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BNC
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Alarm out| Status | Data In/Out
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3 Pin removable Phoenix connector 2.55mm pitch
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Alarm In/DC Out
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4 Pin removable Phoenix connector 2.55mm pitch
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Indicators/LEDs
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LEDs
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Standby - Red
Operating - Green
Link initializing - Yellow
Link fail - flashing Yellow
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Operate - Red
Power Camera - Green
Power Low* - Yellow
Power Fail* - Flashing Yellow/Green
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Alarm - Red
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*Yellow for 5 secs whilst establishing connection with Sender.
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*Power Low - CAUTION output <12 volts
*Power Fail - WARNING Excessive load on output Remove immediatly
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Environmental
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Operating Temperature Range -5 C to +55 C
Operating Humidity Range 20 – 90% relative non - considering
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Mechanical
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100L x 75W x 26H | Weight 200 gm
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100L X 75W X 26H | Weight 210 gm
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PSU 143L x 72W x 42H | Weight 430 gm
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Shopping Cart
Item(s)
0
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Total:
£0.00 Ex VAT
