Automatic Meter Reading via Cellular Networks

Automatic meter reading, or AMR, is the technology of automatically collecting consumption, diagnostic, and status data from energy metering devices (gas, electric) or water meter and transferring that data to a central database for billing, troubleshooting, and analyzing.

They are major three topologies for AMR systems by using cellular networks:
1. Each meter is connecting to a M1000 smart GPRS modem via RS232 by using CSD (data call);


2. Each meter is connecting to a M1000 smart GPRS modem via RS232 by using GPRS (meter control the modem via AT commands);

3. Each meter is connecting to a Data Concentration Units (DCU), which may support up to 32 meters, and each DCU is connecting to a M1000 Pro serial to GPRS gateway via RS485 by using GPRS (transparent transmit serial data to billing center automatically).


About M1000 (CE, R&TTE, RoHS, WEEE compliant) 　
- Perfect EMC performance: compliant to IEC61000-4 series high level standard to meet
Smart Grid harsh environment demand.
- Wide operating temperature range from -25 to 70 degrees centigrade.
- Built-in industrial grade Cinterion wireless module.
- Low power consumption: idle: 0.6-0.72 watt, peak: 1.2-2.4 wat


GoFixed 3G ADSL VoIP WiFi Gateway
RobustelGoFixed W800 3G HSPA ADSL WiFi VoIP Gateway is a Dual-WAN 3G / ADSL2+ (VPN)
firewall router integrated 3G HSUPA, ADSL / ADSL2+, 802.11b/g/n,
WCDMA/GSM voice and SIP VoIP / FoIP.
■ 3G HSUPA works as a backup WAN, functioning asan automatic fail-over when an ADSL2+
connection breaks down.
■ With one RJ-11 FXS interface, users could enjoy excellent VoIP and T.38 FoIP service over
ADSL or 3G.
Also supports WCDMA / GSM voice over this RJ-11 interface based on circuit switch.
■ 3G ADSL Wireless Gateway also provides IPsec VPN and PPTP VPN termination, users can
access corporate intranet andtransmit sensitive data betweenbranch offices and remote
sites anytime and anyplace.
- La gateway 3G ADSL Wireless también proporciona IPsec VPN y la terminación  PPTP VPN, los usuarios pueden  acceder a la intranet corporativa y transmitir datos importantes entre oficinas de su compañía, y sitios remotos y a cualquier lugar.

 

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