DM686

Dedicated modem designed to support the AS series of meters from Honeywell (Elster)

DM686 is a GSM-based remote data communication terminal designed to work with the AS series of meters from Honeywell (Elster). The modem is fitted inside a meter’s original terminal strip housing to ensure an appropriate IP protection rating.

Specifications

Dimensions: the modem is fitted inside the original terminal strip housing of an AS series meter
IP protection rating: same as the meter’s IP rating following installation
Power supply voltage: 100 to 240 V AC
Operating temperatures: -25 to +60°C
Sealing: communications connectors, power cords, SIM card slot and antenna connector
Clear status and signal level indications with LEDs on the front panel

Radio communications

900/1800 MHz for CSD on 2G networks
900/1800 MHz for GPRS/EDGE on 2G/2.5G networks
900/2100 MHz for UMTS/HSPA on 3G networks

Functionality

Support of TCP/IP, UDP/IP, ICMP, Telnet
Transparent handling of data from the serial interface
Powerful feature set to support electricity meters (including time synchronization and automatic protocol recognition)
Real-time clock with battery backup; clock synchronization via NTP or from the GSM
Remote and local hardware and software restart feature
Proprietary algorithms to monitor key quality metrics of the entire communication channel in TCP/IP mode and GSM mode: Link Control and GPRS Control
Device configuration access security controls
Internal event log
Built-in IP address filter to support whitelisting and blacklisting for inbound connections
Compliance with industry standards in terms of technical and security specifications

Equipment

RS485 serial interface (terminal block)
mini USB 2.0 configuration port
SMA antenna port
SIM card slot (2FF USIM)