Data Concentration Unit AMI RF Data Converter DC220

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)”

Introduction

- DC220 RF Converter unit, a Converter device will be a relay node in RF Mesh Neighborhood Area Network (NAN), and it will convert the downlink with BPLC to uplink with RF Mesh in Local Area Network (LAN).

• LAN: work as a BPLC Master-Node of LAN to form a Tree network, which reachs to the Smart Meter or Data Collector with BPLC Sub-Node inside.
• NAN: work as a RF Mesh Sub-Node to form a Mesh amongst themselves to reach the Gateway either directly or via hops in the Mesh, which used to extend the distance of communications.

- Willfar DC220 RF Converter integrates the DC2-PSZ1 BPLC NIC and DC2-RSF1 RF NIC.

• The BPLC NIC is according to IEEE 1901.1 standard.
• The RF NIC is according to Wi-SUN FAN Specification. Wi-SUN is open-standards based secure, interoperable communications for large scale IoT for Smart Utility and Smart City networks.

DC2 RF NIC integrates Zhonghui SWMW920S Radio Module, which certification identifier in Wi-SUN Alliance is WSA 0215.

- The DC210 RF NIC contains transceivers operating in 900 MHz.

- In a typical application, the module will be installed in electricity metering applications. The module will communicate with other network devices using the 900MHz. This can include other meters, relays, access points, Distribution Automation devices and other host devices.

OSI Layer – RF Mesh

OSI Layer – BPLC

Technical Parameters

Certificate

Wi-SUN/ IEEE 802.15.4g/IEEE 1901.1

Features

1. Full coverage the LAN and NAN which support AMI reach to meters 100%.

2. LAN master node, extending LAN coverage. NAN relay node, extending NAN coverage.

3. Layer 2 Ethernet transport – supports application layer protocols, including TCP/IP, DLMS/COSEM, ANSI C12.22/C12.19 etc.

4. Over The Air/Line upgradable

5. IP65 Enclosure, outdoor without box, wall or pole installation.

6. AC power source with wide voltage range, Backup battery operation at least 4 hours.

7. LAN BPLC is according to IEEE 1901.1 standard

• More reliable, Support data segmentation & retransmission, beacon network, physical layer FEC & CRC, powerful noise & error correction capability.
• Faster response, Single Reading<1S,Success rate 100%,Support for concurrency

8. NAN RF Mesh conforms to Wi-SUN FAN specification

• Feature complete specification is approved
• Supports IEEE802.15.4g/4e PHY/MAC, 6LowPAN, and IPv6
• Supports multi-hopping operation and frequency hopping
• Supports encryption (AES) and authentication (802.1x)
• Programmable frequency band (902~928MHz US/BZ) and PHY operational mode.

9. Highly Secured (certificate based authentication)

10. Easy to install and maintain (self-forming/healing mesh network, upgradeable)

11. Longevity (open standards, upgradeable)

12. Ability to scale easily to thousands of nodes (optimal use of frequency band)

13. Reliable and resilient (mesh, multiple channels, demonstrated interference tolerance)

14. Long range (sub GHz, mesh)

15. Low latency (high data rates, low channel utilization)

16. Energy Efficient (short transmission time, long battery life leaf nodes)

17. Low Cost (open standards, multiple silicon vendors)

18. Multi-vendor Interoperability (certification program for complete communications protocol stack).

Antenna Terminology

Typically, the external antenna cables are routed to a bulkhead SMA connector on the outside of the host enclosure. An external antenna solution will require safety isolation from the AC mains voltage.

Situation

For smart meter required data converting function. Pluggable.

Dimension
160*120*65 mm