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Industrial Rail Type 16* 4-20mA Analog+DI/DO+Serial Port Optical Transceiver FC2P-042913

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This optical transceiver adopts large-scale FPGA design and original technology, and can simultaneously support 1~16 channels of analog signals (current/voltage) or up to 16 DI/DO, or up to 8 RS232/422/485 serial ports to 1+1 backup optical fiber for transmission. When the main optical fiber is broken, the backup optical fiber will work. The equipment adopts dual power supply, high-performance FPGA programmable device, no MCU processing, high-speed conversion, sampling frequency can reach 20KHZ, 12-bit AD conversion chip, which solves the problems of electromagnetic interference, ground ring interference and lightning damage, greatly improves the reliability, safety and confidentiality of control signals, and also solves the problem of limited cable transmission distance.


Two optical interfaces support 1+1 optical backup. When the main optical fiber is broken, it switches to the backup optical fiber. When the main optical fiber is normal, it switches to the main optical fiber. The switching time between the main and backup optical fibers is less than 1ms. The switching of optical fibers does not affect the state of the dry contactbeing transmitted.

There are 8 module slots in the device, with 2 analog channels per slot, which can be bidirectional, 2 DI/DO channels per slot, which can be bidirectional, and 1 serial port per slot. For example, it can be made into an optical terminal with 4 bidirectional analog channels + 4 unidirectional DI/DOchannels + 2 serial ports.

The analog quantity supports 4~20mA current; or 0~10V/0~5V, voltage; 16 analog input and output channels can be combined arbitrarily; 

The AD/DA channels of the 16 analog channels use FPGA parallel reading and writing, not MCU sequential reading and writing mode, and the delay of each analog channel is less than 0.1ms;

Each analog channel reads high-speed sampling data through FPGA, and the sampling rate is 20K times/second, much higher than similar products on the market;

After the analog output end with optical fiber is broken or the input end device loses power, the analog output maintains the value before the most recent fiber break, which can be enabled by DIP switch setting. When this function is not enabled, the analog quantity after fiber break is 0MA or 0V;

The serial port supports three data interfaces RS232/485/422, RS232 supports 3-wire RS232 (TXD, RXD, GND); RS232/485/422 channels can transmit asynchronous serial data with adaptive baud rate from 0-115200

Each dry contact has an open and closed indicator light status indication; the dry contact input is automatically detected when it is open and closed, and the dry contact output is in the same state when the input is in any state, which is convenient for project activation; the switch state of the dry contact is stable when the power is on or the optical fiber is not connected, and there will be no random action state;

Multi-mode fiber/single-mode fiber is optional, multi-mode can transmit 2KM, single-mode can transmit 20KM, ST/SC/FC Optional interface;

With signal fault protection function; Full display of electrical interface and optical fiber operation status

4-20ma interface lightning protection reaches IEC61000-4-5 (8/20μS) differential mode: 6KV, impedance (2Ω); common mode: 6KV, impedance (2Ω) standard

Support wide range AC and DC input, support internal isolation, redundant dual power input, power supply supports overload protection, anti-reverse connection protection

Meet the requirements of industrial level 4 electromagnetic compatibility;

Super lightning protection function: lightning protection, anti-inductive high voltage, anti-surge, etc.; fanless and efficient heat dissipation, reducing repair time;

IP40 shell protection level, can withstand the test of harsh environment;

Guide rail or wall mounting; wide temperature type: working temperature -40℃~ +85℃;

All models have passed 100% baking machine test, warranty period: 5 years;




Optical port: 2

Optical Fiber: Single/Dual fiber

Fiber interface: FC/SC/ST/LC(SFP)

Wavelength:850nm/1310nm Multimode;1310nm/1550nm Single mode

Relay-free transmission distance: 20~120Km

Typical transmit power: 

Single mode 1310/1550nm: ≥-9dBm

    Multimode 850nm: -18dBm

    Multimode 1310nm: -25dBm

Receiving sensitivity range: -28dBm~- 40dBm


Current Analog  

Input and output range: 0~20mA (including 4~20mA)

Resolution: 12 bits

Sampling rate: 20K times/second

Time delay: <0.1ms

Maximum load capacity: 600Ω

Input resistance: 125Ω

Accuracy: 0.4% (room temperature)


Voltage Analog

Input and output range: 0~10V (including 0~5V)

Resolution: 12 bits

Sampling rate: 20K times/second

Time delay: <1ms

Maximum load capacity: 600Ω

Input resistance: 100ΚΩ

Accuracy: 0.4% (room temperature)


Serial Interface


EIA/TIA-232 RS-232 (ITU-T V.28)

EIA/TIA-422 RS-422 (ITU-T V.11)

EIA/TIA-485 RS-485 (ISO/IEC8284)

Serial interface:

RS-422: TxD+ TxD- RxD+ RxD-

RS-485 4 wires: TxD+ TxD- RxD+ RxD- RS-485 2 wires: A (corresponding to TX+) B (corresponding to TX-) Ground

RS-232: RXD TXD Signal Ground


Dry Contact Interface

Output interface type:

Dry contact

1: Signal relay dry contact output; 2: Optical MOS relay output (maximum internal resistance 25Ω)

Pulse quantity:

Optical MOS relay output, 0-VCC (VCC is the power supply voltage of this machine)

Response time: Signal relay dry contact output: <1.2ms, optical MOS relay output <0.6ms

Dry Contact Signal: Signal relay dry contact output 30VDC/0.5A; optical MOS relay output: 245VDC/0.12A

Maximum switching frequency: 50HZ

Output surge protection: Signal relay dry contact output: None; optical MOS relay output: TVS+solid discharge tube protection


Environmental Index

Working temperature: -40℃—+85℃

Storage temperature: -40℃—+85℃

Working humidity: 0%—95% (non-condensing)

MTBF: >100,000 hours


Product Number


Product Function Description

Simultaneously transmit 16 analog interfaces or 16 switch interfaces or 8 serial interfaces on 1+1 optical fiber

Service Port Description

2*Optical fiber interfaces; 16*Interfaces

Power Supply

Redundant dual power input: DC12-48V Power consumption: <5W ​​Overload protection: Supported; Reverse connection protection: Supported; Redundancy protection: Supported

Access terminal: 4-core 5.08mm pitch plug-in terminal

Casing: IP40 protection level, aluminum alloy

Installation method: Guide rail installation, wall installation

Product Size

(L×W×H) 133*120*50mm




Questions you may ask

Q: How long is the lead time after placing an order?

A: The specific lead time will vary depending on the quantity and the product. Generally, it will be 3 to 5 days.


Q: What is the MOQ?

A: For most products, we support sample order.


Q: How can I get a quote?

A: After you submit your inquiry message and confirm the product specifications, we will provide you with a detailed quote as soon as possible.


Q: Can the logo be customized?

A: Yes, OEM support.



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