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Compact Design Data Concentrator Unit AMI Data Collecting DC200

Minimum Order Quantity : 100 Price : Negotiable
Packaging Details : Carton Packaging Delivery Time : 30 days
Payment Terms : T/T Supply Ability : 2000 per day (based on the number of the order)
Place of Origin: Changsha, Hunan Brand Name: Willfar Information Techonology Co., Ltd.
Certification: CE Model Number: DC200

Detail Information

Color: White Material: PVC
Nominal Voltage: 220V Brand: Willfar Information
Insulation Protection: Class II Operating Temperature: -40 °C ~ + 70 °C
Relative Humidity: ≤95%, Non-condensing Ingress Protection: IP51
Voltage Range: 70% ~ 130% Un
High Light:

data concentration unit


remote data concentrator

Product Description

Data Concentration Unit AMI Data Collector DC200


Company Profile
Willfar Information Technology Co., Ltd.
- Established in 2004;
- Listed on the STAR Market of the Shanghai Stock Exchange in December 2019;
- Leading supplier of meter reading (AMI) equipment and operation service;
- The first company to develop "One DCU Reading Multi-meter" solution in China;
- The first company to have large-scale application of technologies and systems like "CPU smart-card Charge and Control", "One DCU Reading Multi-meter", LoRa-based RF Communication and "District Metering Area (DMA)”

- The collector DC200 installed between DCU and water/electric meters.

- The collector DC200 links with DCU platform through PLC network. While it communicates with electricity meters through local RS485 technology and water meter via RF LoRa technology.

- The DCU serves as the main node in the PLC network, and DC200 are sub nodes. Main node is responsible for managing the network, including sub node registration, network path optimization, etc.

- Sub nodes receive commands from main node and make response to main node through power line network.

Compact Design Data Concentrator Unit AMI Data Collecting DC200 0

Technical Parameters

Item Parameter
Nominal Voltage 220V
Voltage Range 70% ~ 130% Un
RS485 Downlink Interface

Baud rate:9600bps,

Data bits:8,

Parity: none,

Stop bits:1,

Support up to 32 meters

RF LoRa Downlink Interface


Baud rate: <10Kbps

RF P2P Downlink Interface


Baud rate:5.5Kbps

Operating Temperature -40 °C ~ + 70 °C
Relative Humidity ≤95%, non-condensing
Ingress Protection IP51
Insulation Protection Class II
Apparent Power ≤5VA
Active Power ≤3W
Dimension 200 × 50 × 90mm



Functional Elements

DC200 is composed of several elements, including:

1. CPU

2. RS485 interface

3. LoRa/RF P2P communication interface

4. Power amplifier

5. Coupling circuit

6. Voltage transformer and DC/DC power supply to adjust voltage for CPU

7. LED control

Compact Design Data Concentrator Unit AMI Data Collecting DC200 1

DC200 adopts the PLC or RF Mesh high-speed CPU, power amplifier, coupling circuit, DC/DC power supply, RS485 interface, LoRa/RF P2P communication interface and LED control. The PLC/RF CPU demodulates the carrier signal from coupling circuit and modulate the data sent by power line/air. The CPU also communicates with meter. RS485 and RF P2P is used for connecting electrical meter to DC200, and LoRa communication interface is used for communicating with water meter. LED control indicates the working status of DC200.



1. LED Indication

DC200 is composed of five LED lights:

POWER: Power on indication, always on

RUN: Running indication, the frequency of blink is 2.5Hz

UP_TX: blink when send data to uplink network

UP_RX: blink when receive data from uplink network

DN_TX/RX: blink when send /receive data from downlink network

(Note: Uplink: G3-PLC/BPLC/Wi-SUN RF Mesh/G3, WIFI; Downlink: RS485 / RF-P2P connect to electricity meter, LoRa connect to water meter)


2. RS485 Communication interface

It is suggested that the voltage between RS485 A and RS485 B should be measured every time a meter is installed. It should not be zero or negative.

RS485 line length should not be exceed 1000m.


3. LoRa Communication interface

DC200 has two frequency of LoRa, one is fixed for wake up the water meter, the other one is unfixed for data notification and reading meter data.


4. RF P2P Communication interface

    DC200 support the point to point RF star network downlink communication.


5. WiFi Communication interface

There is one WiFi function for debug and setting/reading its parameters via AT commands, including electricity/water meter archive.





For smart meter required communication function. Pluggable.

Compact Design Data Concentrator Unit AMI Data Collecting DC200 2


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