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Transmit Four 4~20mA Analog Signals and 16 Digital Inputs Bi-Directionally Over Fiber with High Speed and Accuracy

This Fiber Optic Media converter transmits 4 channels of 4-20mA analog signals and 16 bi-directional contact closure signals over fiber cable. Premium features include 60,000 samples a second, 16 bit signal resolution, and less than 0.2% source signal variance.

Compatible with most PLC’s, Sensors (2, 3, or 4 wire), and other types of equipment where precise current or voltage measurements must be taken and transmitted over fiber. The high density contact closure feature allows for bidirectional alarm transportation.

This compact and rugged system provides convenient and easy to read LEDs, supports both single-mode and multimode fiber applications, and includes an alarm on either side for monitoring system power and fiber health.

Designed to operate over an extreme temperature range, providing reliability in harsh environments, each device is DIN rail and wall mountable. Designed and Made in the USA and covered by our Limited Lifetime Warranty.

Features

  • Rugged design – Extreme operating temperature rating
  • Convenient LEDs for power, fiber, and analog signals
  • Single and dual fiber models available
  • Available with ST or SC connectors & single or multimode fiber
  • Update Rate: 78,000 Samples per Second
  • 16 Bit Signal Resolution
  • 99.8% Accuracy or Better
  • Alarm contact for status monitoring
  • Bi-directional Contact Closure Transmission
  • Redundant Power Inputs
  • Built-in surge, over current, and polarity reversal protection
  • DIN rail or wall mount (Includes wall mount ears)
  • Limited Lifetime Warranty
  • Made in USA

Please see the product documentation for the complete list of specifications

Powering Voltage:
Standard Model – 24~48VDC

Maximum Power Consumption:
Transmitter – 8 Watts (Maximum)
Receiver – 10 Watts (Maximum)

Fiber Connectors:
ST or SC

Fiber Type:
Dual and Single Fiber models available
Singlemode up to 120km
Multimode up to 2km, supports 62.5µm and 50µm

System Accuracy:
Analog Signal Accuracy: 99.8%
Ambient Temp Effect: Approximately 0.4% over range
Update Rate: 12.8µs (78,000 updates per second)
Signal Resolution: 16 Bits
Sensitivity: 2^16 (65,536) Steps
Operating Range: 0mA – 22mA (DC)

*Additional Input/Output specifications available in data sheet

LED:
POWER – DC Power OK
FIBER – Fiber Receiving
Input – Analog Input Status
Output – Analog Output Status

Surge Protection:
PTC Thermistors and Varistors
Automatic Overcurrent Protection and Recovery
DC Input Isolation 1.5kV
Voltage Reversal Protection

Operating:
Temperature -40°F to +158°F (-40°C to +70°C)
Humidity 95%

Construction:
Powder coated steel and aluminum alloy
Physical Dimensions H 4.93” x W 2.90” x D 3.90” (125mm x 31mm x 100mm)

Mounting Style:
Standard DIN rail (T-35)
Wall mount (with included ears)

General Information

CAD Files

Guide

ADIO-420TX-DR-NO-03-1
ADIO-420RX-DR-NO-03-1
ADIO-420TX-DR-NO-04-1
ADIO-420RX-DR-NO-04-1
ADIO-420TX-DR-NO-40-1
ADIO-420RX-DR-NO-40-1
ADIO-420TX-DR-NO-41-1
ADIO-420RX-DR-NO-41-1
ADIO-420TX-DR-NO-45-1
ADIO-420RX-DR-NO-45-1
ADIO-420TX-DR-NO-50-1
ADIO-420RX-DR-NO-50-1
ADIO-420TX-DR-NO-51-1
ADIO-420RX-DR-NO-51-1
ADIO-420TX-DR-NO-55-1
ADIO-420RX-DR-NO-55-1
ADIO-420TX-DR-NO-10-1
ADIO-420RX-DR-NO-11-1
ADIO-420TX-DR-NO-14-1
ADIO-420RX-DR-NO-15-1

$1,250.00 – $1,650.00
Lead Time: 1 to 2 Weeks*
Order Now
Contact Sales

For product questions, volume pricing and/or delivery outside of the US and Canada, please contact sales.

  • Temperature
  • DIN Mount
  • 16 Channel
  • MUX
  • Fiber Optic
  • RLH Limited Lifetime Warranty
  • Made in USA
  • 35+ Years of Excellence

Ordering

4 Channel 4~20mA + 16 Channel Contact Closure IO Fiber Converter

  • A complete system requires a transmitter and receiver unit
Product configurationTransmitter/ReceiverModeConnectorDistanceFibersPart numberPricehf:att:pa_transmitter-receiverhf:att:pa_modehf:att:pa_connectorhf:att:pa_distance
Analog Signal + IO Fiber Transmitter, 4 Analog 4-20mA Inputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Multimode, SC, 2km/1.2 miles, Dual Fiber, Powered by 24 Volts DCTransmitterMultimodeSC2km/1.2 milesDual FiberADIO-420TX-DR-NO-03-1$1,250.00
transmittermultimodesc2km-1-2-miles
Analog Signal + IO Fiber Receiver, 4 Analog 4-20mA Outputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Multimode, SC, 2km/1.2 miles, Dual Fiber, Powered by 24 Volts DCReceiverMultimodeSC2km/1.2 milesDual FiberADIO-420RX-DR-NO-03-1$1,250.00
receivermultimodesc2km-1-2-miles
Analog Signal + IO Fiber Transmitter, 4 Analog 4-20mA Inputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Multimode, ST, 2km/1.2 miles, Dual Fiber, Powered by 24 Volts DCTransmitterMultimodeST2km/1.2 milesDual FiberADIO-420TX-DR-NO-04-1$1,250.00
transmittermultimodest2km-1-2-miles
Analog Signal + IO Fiber Receiver, 4 Analog 4-20mA Outputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Multimode, ST, 2km/1.2 miles, Dual Fiber, Powered by 24 Volts DCReceiverMultimodeST2km/1.2 milesDual FiberADIO-420RX-DR-NO-04-1$1,250.00
receivermultimodest2km-1-2-miles
Analog Signal + IO Fiber Transmitter, 4 Analog 4-20mA Inputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, SC, 20km/12.4 miles, Dual Fiber, Powered by 24 Volts DCTransmitterSinglemodeSC20km/12.4 milesDual FiberADIO-420TX-DR-NO-40-1$1,350.00
transmittersinglemodesc20km-12-4-miles
Analog Signal + IO Fiber Receiver, 4 Analog 4-20mA Outputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, SC, 20km/12.4 miles, Dual Fiber, Powered by 24 Volts DCReceiverSinglemodeSC20km/12.4 milesDual FiberADIO-420RX-DR-NO-40-1$1,350.00
receiversinglemodesc20km-12-4-miles
Analog Signal + IO Fiber Transmitter, 4 Analog 4-20mA Inputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, SC, 60km/37 miles, Dual Fiber, Powered by 24 Volts DCTransmitterSinglemodeSC60km/37 milesDual FiberADIO-420TX-DR-NO-41-1$1,450.00
transmittersinglemodesc60km-37-miles
Analog Signal + IO Fiber Receiver, 4 Analog 4-20mA Outputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, SC, 60km/37 miles, Dual Fiber, Powered by 24 Volts DCReceiverSinglemodeSC60km/37 milesDual FiberADIO-420RX-DR-NO-41-1$1,450.00
receiversinglemodesc60km-37-miles
Analog Signal + IO Fiber Transmitter, 4 Analog 4-20mA Inputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, SC, 120km/74 miles, Dual Fiber, Powered by 24 Volts DCTransmitterSinglemodeSC120km/74 milesDual FiberADIO-420TX-DR-NO-45-1$1,650.00
transmittersinglemodesc120km-74-miles
Analog Signal + IO Fiber Receiver, 4 Analog 4-20mA Outputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, SC, 120km/74 miles, Dual Fiber, Powered by 24 Volts DCReceiverSinglemodeSC120km/74 milesDual FiberADIO-420RX-DR-NO-45-1$1,650.00
receiversinglemodesc120km-74-miles
Analog Signal + IO Fiber Transmitter, 4 Analog 4-20mA Inputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, ST, 20km/12.4miles, Dual Fiber, Powered by 24 Volts DCTransmitterSinglemodeST20km/12.4 milesDual FiberADIO-420TX-DR-NO-50-1$1,350.00
transmittersinglemodest20km-12-4-miles
Analog Signal + IO Fiber Receiver, 4 Analog 4-20mA Outputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, ST, 20km/12.4miles, Dual Fiber, Powered by 24 Volts DCReceiverSinglemodeST20km/12.4 milesDual FiberADIO-420RX-DR-NO-50-1$1,350.00
receiversinglemodest20km-12-4-miles
Analog Signal + IO Fiber Transmitter, 4 Analog 4-20mA Inputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, ST, 60km/37miles, Dual Fiber, Powered by 24 Volts DCTransmitterSinglemodeST60km/37 milesDual FiberADIO-420TX-DR-NO-51-1$1,450.00
transmittersinglemodest60km-37-miles
Analog Signal + IO Fiber Receiver, 4 Analog 4-20mA Outputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, ST, 60km/37miles, Dual Fiber, Powered by 24 Volts DCReceiverSinglemodeST60km/37 milesDual FiberADIO-420RX-DR-NO-51-1$1,450.00
receiversinglemodest60km-37-miles
Analog Signal + IO Fiber Transmitter, 4 Analog 4-20mA Inputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, ST, 120km/74.2miles, Dual Fiber, Powered by 24 Volts DCTransmitterSinglemodeST120km/74 milesDual FiberADIO-420TX-DR-NO-55-1$1,550.00
transmittersinglemodest120km-74-miles
Analog Signal + IO Fiber Receiver, 4 Analog 4-20mA Outputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, ST, 120km/74.2miles, Dual Fiber, Powered by 24 Volts DCReceiverSinglemodeST120km/74 milesDual FiberADIO-420RX-DR-NO-55-1$1,550.00
receiversinglemodest120km-74-miles
Analog Signal + IO Fiber Transmitter, 4 Analog 4-20mA Inputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, SC, 20km/12.4miles, Single Fiber - Side A, Powered by 24 Volts DCTransmitterSinglemodeSC20km/12.4 milesSingle Fiber - Side AADIO-420TX-DR-NO-10-1$1,310.00
transmittersinglemodesc20km-12-4-miles
Analog Signal + IO Fiber Receiver, 4 Analog 4-20mA Outputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, SC, 20km/12.4miles, Single Fiber - Side B, Powered by 24 Volts DCReceiverSinglemodeSC20km/12.4 milesSingle Fiber - Side BADIO-420RX-DR-NO-11-1$1,310.00
receiversinglemodesc20km-12-4-miles
Analog Signal + IO Fiber Transmitter, 4 Analog 4-20mA Inputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, SC, 60km/37miles, Single Fiber - Side A, Powered by 24 Volts DCTransmitterSinglemodeSC60km/37 milesSingle Fiber - Side AADIO-420TX-DR-NO-14-1$1,510.00
transmittersinglemodesc60km-37-miles
Analog Signal + IO Fiber Receiver, 4 Analog 4-20mA Outputs, 16 Dry Contact Sensing Inputs, 16 Normally Open Relay Outputs, Singlemode, SC, 60km/37miles, Single Fiber - Side B, Powered by 24 Volts DCReceiverSinglemodeSC60km/37 milesSingle Fiber - Side BADIO-420RX-DR-NO-15-1$1,510.00
receiversinglemodesc60km-37-miles
  • Additional options include:
    – 5-12 VDC voltage sensing digital inputs
    – 24-48 VDC voltage sensing digital inputs
    – Normally closed relay outputs
    – Single fiber bi-directional optics
    – Please contact us for availability and pricing

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*Lead times are estimates and may vary. You will be contacted within 1 business day to go over the details of your order. If you require a specific date, let us know!

*Days = Business Days

  • Warning: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
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