When you need: To
transfer an analog signal from a noisy environment, To
isolate the signal from high voltage sources,
Eliminate ground loops, Accuracy
and high Signal/Noise Ratio, Excellent
system reliability -
- the AFL-500 is the perfect solution !
By combining fiber optic technology with advanced proprietary hardware,
A. A.
Lab Systems provides researchers and industry with the means to isolate a signal
from electrically hostile environment, transmit it over up to 100 km to the
data acquisition system, while conditioning the signal. This method eliminates
the addition of noises generated by electrical machinery, line noises, ground
loops and digital noise to your analog signals.
The AFL-500 Analog Fiber Optic
Link is used for transferring Analog signals over a Fiber Optic Link. This product is also known as "Analog
Optical Link" or "Analog Fiber Link".
The
AFL-500 consists of the following components: An Analog Fiber Optic Transmitter - AFL-500/TX, An Analog Fiber Optic Receiver - AFL-500/RX, Up
to 50 km of of glass fiber (30 dB optical budget using single-mode fiber)
The link is connected between the signal source at the transmitter (see Figure
1), and the signal input at the receiver.
Features Excellent signal isolation. Prevents ground loops and computer noise effects on your Analog Signals. Transfers analog signals to distances of up to 50 Km. Linearity: better than +/- 0.1%. Low noise; S/N ratio: 86 dB. Input signal: Up to ±10 Volt @ DC-20 KHz(DC to 27 KHz optional).
Advantages Low
noise transfer of analog or digital data (such as RS-232 interface), particularly
beneficial in electrically noisy environments and for transmission over long distance. For medical tests:
the patient is isolated from data acquisition system and from any other high voltage
source. Optional instrumentation
amplifier input stage provides a differential input, with an adjustable gain of
10-2,000, for direct connection of any sensor such as: strain gage, piezo, EEG
& ECG, temperature, humidity, pressure, etc. Isolates delicate
test equipment from computer-generated noise and spikes: noises from computer
do not return into your system. Eliminates the formation
of "ground loops" (when two instruments are connected to separate power
lines or have a difference between their ground voltage potentials). Total protection of
signal processor's input stage from accidental sensor malfunction (e.g. short
to mains voltage or a lightning shock). Replaces bulky coaxial
cables with compact fiber optic cables - especially important when rewiring existing
ducts. Transfers
analog signals to distances of up to 100 km - with very high accuracy.
Technical
Specifications Input/output
Range: ±10 V standard; ±1 V ±100 mV optional. Linearity: +/-0.1% min. Frequency Response:
DC to 20 KHz (-3 dB)DC to 27 KHz optional. Output Noise: <
1 mV rms (for 1:1 transmission ratio, DC-20 KHz. bandwidth). Supply Voltage: ±15
V regulated, floating power supply. Optical
Fiber: Glass, 62.5/125 micron dia. Standard (up to 1 Km), 9/125 micron optional
(up to 50 Km). Transmission Range:
- Up to 100 Km with single mode fiber. Dynamic Range: 80
dB (±10 V range). Voltage Isolation:
- Input to Output - infinite voltage,
- Input/Output to Mains - standard 800V, Optional up to 2500 V,
- Battery operated - infinite voltage. Optical budget using Single Mode transceivers: 30 dB.
Ordering
Information The
AFL-500 is input single-ended, in 3 ranges:
±10 V (standard) or ±1 V or ±100 mV. Single
ended input (S) is standard. Differential input (D) may be ordered with input
range of ±10 V, ±1 V, ±100 mV, ±10 mV, ±1 mV
or adjustable (A). A stabilized power
supply is also required for each side. It can supply up to 5 (optionally 10) receivers
or transmitters.
EXAMPLE:
TRANSMITTER
/ RECEIVER PAIR: AFL-500
- MM - 1V - 10V - D - R
Where: MM
= MultiMode or SingleMode (SM) optics - (MM is standard). 1
V = Input voltage range(10V is standard). 10
V = Output voltage range(standard). D = Differential (S=Single Ended is standard). R
= Range in meter -27K = DC to 27 KHz Bandwidth
POWER
SUPPLIES: AFL-500
- O3 3
channel power supply (for one side)
AFL - 500 - 10
10
channel power supply (for one side)
Front View
Rear View
AFL-500-BAT
Battery
operated power supply:
Can run 5 channels for 10 hours.
Includes
a 12 V/ 9 AH battery, DC2DC converter, charger + cables.
"
Rack
Mounting:
AFL-500-RACK
A
standard 19" rack mounting case for up to 10 AFL-500 units ( receivers
or transmitters) with ON/OFF switch and power supply / charger input.