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Operation Mode:
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Simplex |
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Operating Wavelength:
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820 nanometers (1300 nm option) |
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Transmission Distance:
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See distance chart |
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Optical Connector:
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ST or SMA |
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Power Requirements:
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See Chart 1 |
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Input/Output:
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See Chart 2 |
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Optical Power Budget:
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10 dB |
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Operating Temperature:
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0 °C to 50 °C |
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Altitude:
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Less than 10,000 ft. |
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Plastic Enclosure:
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6" X 6.5" X 2.75"
(15.2 X 16.5 X 7 cm) |
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Weight:
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2lbs. (1 kg) |
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Mean Time Between Failure:
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MTBF @ 25 °C = 800,000 hours
MTBF @ 50 °C = 300,000 hours
[Calculated using Belcore method]
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UL Listed. Meets FCC requirements of Class A, Part 15 Computing Devices Standard.
Specifications subject to change without notice.
View Complete Technical Data Sheet (PDF)
Return
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The S.I.Tech Model 2811 TR transmits a 10 KHz optical square wave over optic fiber when power
is applied and control input shorted. The 2812 receiver detects this optical square wave and turns ON a 4PDT relay.
If the fiber cable is removed, broken, or the remote transmitter or local receiver loses power, the relay in the
local receiver will turn OFF.
The 4 sets of Form C (4PDT) relay contacts are provided on the rear panel via screw terminal blocks. The power
input (+12 VDC or +24VDC) is also via screw terminals.
The fiber optic input/output is provided on the rear panel via ST receptacles, 905/906 compatible SMA receptacles
are available as an option.
The front panel contains 2 indicator LEDs, a power ON indicator and a CARRIER (10 KHz detected) indicator.
Chart 1: Maximum Power Requirements
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Input
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2811
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2812
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+12VDC
+24VDC
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50mA
50mA
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200mA
200mA
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Chart 2: 2811 and 2812 I/O Ratings
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2811 Control Input
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0 to 500 Ohms
Closure Isolated from
Power or Ground
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2812 Contact Ratings
Resistive Loads
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Maximums
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Switching Power
Switching Voltage
Switching Current
Carrying Current
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60W, 125VA
220VDC, 250VAC
2A
3A
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