Communication interface: 1 10/100M adapter (RJ45); 3 passive485, 4 active RS-485; 1 GPRS, CDMA(optional). Each RS-485 may be connected with maximum 32 metering devices, supporting independent for each metering device, with a communication rate of 1200bps-9600bps.
Acquisition characteristics: supporting realtime acquisition and cyclic acquisition together, with configurable acquisition cycle of 1 minute to 24 hours. Capable of data acquisition for various common energy meters, water meters, gas meters, cold and heat meters, flow meters and other metering devices. The protocol adopts dynamic link libraries design, convenient for protocol extension. It supports the guide rules requirements of the Ministry of Construction, to upload the energy consumption data of the categories and items to the central system or other systems. Large-size storage, supporting 128 meters for at least 3-month historical data storage requirements, and able to provide realtime data and historical data services for foreign applications. The data may be stored for 10 years after power outage.
Electrical performance: high-frequency interference reaches Level III requirements of IEC 255-22-1standard; electrostatic discharge, electrical fast transient interference, electromagnetic field interaction, lightning surge and others reaches Level III requirements of IEC 61000-4 standards.
Overall power consumption: <10W (maximum configuration). MTBF＞100000 hours. In addition to the in-built LCD operation interface, equipment management and data browsing may also be implemented through embedded web. It is provided with abundant uplink channels, where except standard Ethernet, GPRS/CDMA, and other uplink communication module may also be optional as per requirements.
System sync-timing: supporting remote sync-timing;
Abnormal condition recording: when any failure of the equipment occurs, records will be automatically generated and saved, and relevant information may also be uploaded to master station when needed.
Security function: provided with password setting and authority management, to prevent unauthorized operation.
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Function
 1. Application scope:
Government office building energy consumption monitoring
Large scale public building energy consumption monitoring
Campus building energy consumption monitoring
ndustrial and mining enterprises energy consumption monitoring
2. Typical cases
Qingdao Fuxin Office Building
Changsha City Construction Committee
3. Reference standards
“Government office building and large-scale public building energy consumption monitoring subentry energy consumption data acquisition technical guidec;€.
“Government office building and large-scale public building subentry energy consumption data acquisition technical guidec;€
“Government office building and large-scale public building premises subentry metering design and installation technical guidec;€
“Government office building and large-scale public building construction, acceptance and operation management specificationsâ€
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“Government office building and large-scale public building construction, acceptance and operation management specifications†Â
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