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Description:SLS-006CF is a GPRS based vehicle unit for fleet management application It is 100percent compliant to GPRS Class 10 communication speed and provides all necessary interfaces and options for GPRS application domain Major features and specifications are summarized as below Major Features 11 Working Voltage 10V ~ 35V With this voltage range switching power source and surge protection it is suitable for 12V or 24V batteries vehicle 12 GPS receiver module included It is based on the SiRF Star III chip that provides high sensitivity accurate position speedy position fix low power consumption and etc 13 Automatic GPS antenna fail detection With a special feedback loop design the system will check the antenna automatically and report its status when the unit turns on 14 Two sets of IP and PORT provided Two sets of IP and Port can be burned on the unit so that when the first set can not be connected the system will switch to the second set automatically 15 Unique ID for each set Every unit has its unique ID code 16 148Mb Flash Memory included Default is 1 Mb with options for 4 Mb or 8 Mb When the GPRS signal loss the unit status and position information will remain on the flash memory The 17 Advanced RISC Microcontroller With the enhanced RISC CPU it has multi-tasking capability The speed of the CPU could reach 16MIPS (1 million instructions per second) Its EEPROM stores the unit parameters and ID 18 In -System Programmable capability With ISP interface the firmware or system parameters could be upgraded on board directly and easily There is no need to remove the unit 19 Log-in registration The unit performs self-diagnosis after it turns on and provides the external and internal status to the HQ for registration 110 Remote modification of unit parameters Through GPRS channel more than 25 unit parameters can be modified remotely 111 One RS-232 port It provides one asynchronous RS-232 Level interface port with standard DB-9 male connector 112 Two UART ports It provides two TTL Level UART interface ports which are asynchronous and non-handshaking 113 Direct GPS output It provides independent port to output GPS data with speed at TTL Level 4800bps GPS message includes NMEA 0183 GGA GSA GSV RMC VTG GLL 114 Upload operational status and initial self-diagnosis message Operational status and initial power-on self-diagnosis message can be uploaded from UART interface port B This capability can be set through parameter setting 115 Panic button 118 Delay shutdown after engine turning off It provides the capability to turn off the unit based on ACC signal The user can set that when ACC signal disappears (engine turns off) report this event and shutdown the unit immediately or with a delay During the delay time the unit can continue to work normally The maximal delay is 42 minutes 119 Turn off settings Depending on the wiring of power and the ACC signal wires the turn-off settings can be