AFL-284 DIN rail Analog/Contact Closure Fiber Optic Link is an OEM product designed especially for industrial applications.
The units may be used for transferring 4 analog signals of+/-10V or 4-20mA current loop signals, together with 8 contact closures (or digital/TTL signals).
Each one of the Analog signals can be configured separately to be +/-10V or 4-20mA.
Digital Inputs can be optionally adjusted
to 0-12V or 0-24V logic levels.
Each one of the Digital outputs can be adjusted to Logic Input or to Contact Closures.
The user may configure the Analog input to be -10V to +10V or 4-20 mA by using jumpers (Per Channel). The receiver will output both - Voltage or 4-20 mA signals (for input range of 0 to +10V or 4-20mA, as selected) along with 4-20 mA current loop signal.
The 8 Digital I/O lines may be also configured by the user to 0 to +5V (or +3.3V) Standard TTL signal or to contact closure (i.e. a contact closure at the transmitter would cause a contact closure at the receiver).
It is possible to invert all of the contact closures using a single jumper (i.e. an open contact would yield a closed contact at the receiver end and vice versa). Same option is available for TTL signal: 1-> 0 and 0->1.
The AFL-284 Analog/Contact Closure Fiber Optic Link was designed for system integrators and builders, where low size, low power consumption and low cost are important. You won't have to keep 3-4 different fiber optic links in your toolbox. One link does it all with few simple jumper configurations.
No need to lay few fibers - One fiber would transfer all signals.
The bandwidth of the analog inputs is DC-7KHz. The contacts can be switched up to 50 times per second and the TTL lines can be toggled up to 20,000 times per second. The distance between the Tx and Rx modules may be between 0 to 2 miles with the standard Multi-Mode interface(30 miles optional with 1550nm Single Mode optical interface and SM fiber).
Features Excellent signal isolation.
ground loops and computer noise effects on your Analog Signals.
analog signals to distances of up to 3Km (50Km. Optional).
better than +/-0.05%.
noise: S/N ratio: 84 dB@ DC-10Hz.
signal: Up to ±10 Volt @ DC-7 KHz or 4-20mA @ DC-7KHz.
8 Contact Closure signals with 125VAC@0.5A or 24VDC@1A rating.
Wide input power range: 10-28VDC.
Offset Temperature Drift: Better than 15 ppm/deg.C Very small size: Tx: 22.5 mm widthRx: 45 mm width Low cost - Starting from US$1289.- per pair (Rx + Tx, MM Optics) Flexible Analog and Digital I/O configuration (+/-10V and 4-20mA mixed, TTL/Contact closures mixed)
OverFlow and Underflow Alarm LEDs + Open Collector signals at the transmitter
Out of Range and No Link alarm LEDs + Open Collector signal + Contact Closure at the receiver.
For more information about a similar link with 2 Analog inputs and 4 Digital inputs click here.
Dimensions: (in mm)
S/N ratio DC-10Hz:
RX: 300-410mA, TX:300mA @ 12V in
Lower current at higher supply Voltage
Analog Input Range:
+/-10V or 4-20mA
Output Voltage Range:
+/-10V and 4-20mA
0.05% @+/-10V range
Better than 2.5mV RMS
1 Giga Ohms (FET Amp)
CMOS inputs for Digital I/O
Optical budget with Single Mode transceivers: 27 dB
noise transfer of analog or digital data , particularly beneficial in electrically
noisy environments and for transmission over long distance.
For industrial applications: DIN rail interface, 24V single supply.
Analog inputs can be mixed: 0,4 or 1,3 or 2,2 or 3,1 or 4,0 inputs of +/-10V,4-20mA.
Digital inputs can also be mixed between 0-3.3V, 0-5V, 0-12V, 0-24V or Contact Closures at any combination.
test equipment from computer-generated noise and spikes: noises from computer
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
voltage or a lightning shock).
Replaces bulky coaxial
cables with compact fiber optic cables - especially important when rewiring existing
ducts. Interface to existing fibers - Multi-Mode standard, SIngle Mode optional.
analog signals to distances of up to 50km - with 15.5 bits accuracy. (14 bit + 1.5 bits more due to oversampling and resolution enhancement technique).
operated power supply:
Can run up to 2 Rx or 1 Tx units for up to 24 hours.Includes
a 12 V/ 9 AH battery, charger + cables.
Larger batteries with higher capacity are available.
Available in OEM version:
Or housed in metal case:
19" rack enclosure
19" rack enclosure is available for housing up to 12 TX modules or 6 RX modules and a power supply or more modules with external power supply.
For more information about other Analog/Digital fiber optic links click here.