M-Bus / RS232/485/CAN / GSM/GPRS / UMTS/HSDPA Computer CX255 Industrial ARM based Embedded Linux Computer Powerful Linux based platform ARM9, 16MB onboard Flash, 64 MB RAM Integrated M-Bus Master Interface for direct connection of meters GSM/GPRS or UMTS/HSDPA integrated 10 / 100 Mbit Ethernet Interface RS232 Interfaces Optional: RS485 and CAN Interface Digital-I/O, Analog In 0..10V / (0)4..20mA SD-Card Slot, USB Host and Device Webserver (CGI), Modbus, BACnet, SNMP -40°C .. +85°C option available The Spi der - II I CX255 embedded Linux c omputer pr o vi des an inte grate d M-B us ho st inter face , as wel l as RS232 i nte r face s and one 10/ 100 Mbit E ther ne t inte rf ac e. The integrate d GSM/ GPRS or UMTS/HSDPA f unc ti onal ity enabl es wi re le ss I nter net c onnec tivity. E le ctri ci ty-, gas- or water - meter s c an so be r ead o ut and be pro gramme d vi a Inte rnet. Even bigger amounts of data and programs can be stored on the exchangeable standard SD card. Optio nall y avail able ar e addi ti onal inte rf ac es suc h as RS485, CAN -Bus, digital inputs and o utputs as wel l as anal og inputs. M-Bus Library Support The powerful embedded computer CX255 is a freely programmable and configurable Linux computer. The integrated M-Bus interface is supported by a C library for easy reading electricity, gas and water meters. The software integration into a specific environment can be realized with minimum effort. An exchangeable SD card offers up to se veral Gigabytes of nonvolatile mass storage space for universal usage. It can be used for databases, for datalogging or even for larger programs or libraries. All common file formats like FAT, FAT32, ext2, ext3, among others, are supported. Flexible programmable platform The C/C++ programming is supported by a standard GC C toolchain with Glibc library. Script programs are supported as well as a Java runtime machine. Application programs benefit from the numerous protocols, servers and clients already available for instantaneous usage. A CGI enabled webserver supports webbased applications, data transfer can comfortably be done by ftp transfer and data management is supported by the SQL database system SQLite.

Technical Specifications M-Bus Host / RS232/485 / GSM/GPRS / UMTS/HSDPA ■ Powerful Linux based system with ■ Integrated M-Bus Host interface ■ Integrated GSM/GPRS or UMTS/HSDPA Digital inputs and digital outputs ■ Webserver(CGI), Modbus, BACnet available ■ SNMP, SSH, VPN, SQLilte available ■ 10/100 Mbit Ethernet interface with standard ■ 2 x RS232, one intended for service purposes ■ 1 x M-Bus Host Interface, - for direct attachment of M-Bus meters - Electronic overcurrent protection - Overload protection - Reverse polarity protection UMTS/HSDPA Module ■ SIM Slot externally accessible ■ Connector...