● Domestic Networking, Communication and Management System

A. Distributed Monitors at the Control Center

Each one of multiple service stations set up under the monitoring system undertakes its share of monitoring tasks in accordance with the authorized account numbers assigned to it.

● System Diagram

● The entire automatic system is composed of the following subsystems.

● A security system with an access control able to generate alarms in the event of a breach.

● An power system with energy-saving functionality.

B. Local Host Monitoring Panels for Residence Buildings

In the community security guard room, a local host monitoring panel can be set up for the management and maintenance for the consumers nearby.

C. Communication Devices for MT-Series Micro-computer Gas Meters

Features of the devices include

● Human Machine Interface

● System Monitoring

● Events Warning

● Read Meters Data and Print Out

D. Hardware and Software of the Surrounding Equipment

● Sound and Light Alarm Device (SLAD)

● The Setting Device for Local Host NCU or the Gas Meter

Provide an on-the-spot reading, set-up and maintenance for Micro-Computer

gas meters and communication installation.

● Software at the Control Center

● Design of the Website Platform

Website platform is designed to eliminate the need for the software at all service stations, thus effectively reduces the works for the system's management upgrade and maintenance.

● Simple to operate and easy to learn-- The Monitoring Center uses simple pictures as the principle of design. It is easy to learn and use. The system is characterized by the following functions: (1 ) monitoring requirements, (2) information registration, (3) information printout, (4) meter-reading and (5) system management.

● Optical Industrial Media Converter, designed to convert Ethernet networks to fiber networks by transparently converting Ethernet signals to optic signals, has advantages of wide bandwidth, EMI immunity and long-distance transmissions, featuring

● 1×10/ 100M bps Ethernet port with RJ45 connector,

● Internal jumper for Link Fault Pass-through (LEP) setting,

● Full/half duplex flow control,

● Store and forward transmission,

● Auto-negotiation,

● MDI/MDI-X auto crossover,

● Surge (EFT) protection of 3,000 V DC for power line,

● 4,000 V DC ethernet ESD protection,

● Redundant +12-48 V DC power input,

● Flexible mounting DIN-rail & Panel Mounting, and

● Wide operating temperatures of -40~ 75 ℃.

● Automatic Meter Reading and Security System：

Sample I ：

a. Local Host to Remote Host

● Standard TCP/IP Interface

b. Local Host to NCU

● 2-wire system

● Type: CAN BUS Network

● Speed: 25 Kbps

c. NCU to Gas Meters

● Bus Topology

● 2-wire system

● Length of the wireless than 100 meters

Sample II ：

a. Local Host to Remote Host

● Standard TCP/IP Interface

● Internet Network

b. Local Host to Gas Meters

● 2-wire system

● 9.6 Kbps Speed

c. NCU to Gas Meters

● Bus Topology

● 2-wire system

● Length of the wire less than 100 meters