F2920D Multiple Connection Terminal is a high-performance measuring and monitoring equipment, which integrates analog signal acquisition, switch input, relay output, RS485 communication, LoRa, WIFI, 433MHz, ZigBee, and cellular wireless communication. It can access different equipments and realize the monitoring and control function of the equipment through different communication modes. 
​
    F2920D adopts high-powered industrial 32 bits CPU and industrial wireless communication module, and embedded real-time operating system to support the software system. In order to achieve analog and digital signal acquisition, data storage and reporting, it supports RS232 and RS485 serial port in the mean time.
It has been widely used in the M2M fields, such as smart grid, intelligent transportation, smart home, finance, POS, supply chain automation, industrial automation, intelligent building, fire, public safety, environmental protection, weather, Digital medical, telemetry, military, space exploration, agriculture, forestry, water supply, coal, petrochemical, and so on.
 

•  Adopt high-powered industrial module
•  Adopt high-powered industrial 32 bits CPU
•  Embedded Real Time Clock(RTC) circuit which can realize timing online/offline function
•  Housing: iron, providing IP30 protection. The iron housing safely isolates the terminal from the system, which is    especially suitable for the industrial application. 
•  Power Range: DC 5~36V

•  WTD design ensures the stability of the system
•  Auto recovery mechanism makes it always online
•  RS232/RS485/RS422 port: 15KV ESD protection
•  SIM/UIM port: 15KV ESD protection
•  Power port: reverse-voltage and overvoltage protection
•  Antenna port: lightening protection (optional)

•  Adopt terminal block interface, convenient for industrial application
•  Support standard RS232 and RS485 port that can connect to serial devices directly
•  Support intellectual mode, enter into communication state when powered
•  Provide management software for remote management (optional)
•  User-friendly, flexible, and multiple operating modes 
•  Convenient configuration and maintenance interface
•  Support serial software upgrading and remote maintenance

•  Support TCP server and TCP 4 clients connection (optional)
•  Support 8 digital inputs, 2 analog inputs, 3 relay output channels and 1 10M/100M Ethernet interface
•  Compatible 2G/3G/4G LTE full band and frequency 

•  Functional and Technical Standard of Rural Intelligent Power Distribution Terminal: Q/GDW615-2011
•  Communication Protocol of Electricity Data Acquisition and Management System: Q/GDW-11-143
•  Functional Specifications of Power Distribution Automation Terminal (Sub-Station): Q/GDW514
•  Implementing Rules of DL/T 634.5101-2001 Protocol 
•  Performance of insulation, vibration, and anti-interference meet the standard of Q-GDW615-2011
•  Electrostatic Discharge: can withstand GB/T 17626.2-2006 of the IV level of electrostatic discharge interference test
•  Radiated susceptibility: can withstand the GB/T 17626.3 of the IV level RF electromagnetic field immunity 
•  EFT/B immunity test：can withstand the GB/T 17626.12 of the IV class fast pulse group interference test
•  Surge immunity:can withstand the GB/T 17626.5 of the IV level surge (impact) interference test
•  Damped oscillatory magnetic field immunity: Can withstand the GB/T 17626.10 of the IV level damping oscillation magnetic field immunity test

•  Monitoring and Protection of Transformer: collect data of the smart meters and switchgears on the incoming lines.
•  User Electricity Data Monitoring: collect meter data of users.
•  Distribution Meter Monitoring: collect meter data and monitor its operating conditions.
•  Monitoring of Residual Current Operated Circuit Breaker: residual current value monitoring, residual current state monitoring, and remote control switch breaking/closing.
•  Status Monitoring: 8 input and output channels of switchgear and the accuracy of remote communication is 100%.
•  Power Quality Management: monitoring of smart capacitors for reactive compensation, three-phase unbalanced management and power quality data monitoring.

Interface
Item	Content
Serial	● 1 RS232 port (Compatible RS485) and 1 RS485 port, 15KV ESD protection ● Data bits: 5, 6 ,7, 8 ● Stop bits: 1, 1.5, 2 ● Parity: none, even, odd, space, mark ● Baud Rate: 110~230400 bits/s
Indicator	“PWR”, “SYS”, “SIM”, “ALM”, “Online”, “ETH”, “WIFI”, “433/ZigBee”, “LoRa” and signal strength indicator
Antenna	● Cellular: 1 Standard SMA female interface, 50 ohm lighting protection ● WIFI: 1 Standard SMA female interface, 50 ohm lighting protection (optional) ● 433/ZigBee: 1 Standard SMA female interface, 50 ohm lighting protection (optional) ● LoRa: 1 Standard SMA female interface, 50 ohm lighting protection (optional)
SIM/UIM	Standard 3V/1.8V user card interface, 15KV ESD protection
Application	8 input and output channels (optical isolation); Definition: 2ms Logic 0: Wet node 0-3VDC, or dry note conducting Logic 1: Wet node 5-30VDC, or dry note conducting
	3 relay output interfaces Maximum switching voltage: 250VAC/30VDC Maximum switching current: 5A
	2 analog signal input interfaces 4 ~ 20mA current signal input, 0~5V voltage signal input (optional), accuracy: 0.5%
	1 controlled output power supply The output voltage is the same as the device supply voltage, default value is 12V Output Current:1A; ESD protection
Power	Terminal block interface, reverse-voltage and overvoltage protection
Note: There may be different components and interfaces in different models, please in kind prevail.

Appendix A
 
A.1 Construction
A.1.1 Shape and dimensions
On both sides of the device, there are fixed holes.In order to be user-friendly, following is the specific size of the device.(Unit: mm)





A.2 Terminal (Spacing:5.08mm)
 

A.3 Indicator Lights Introduction 

The state of each indicator is as follows: