LSI LASTEM Alpha-Log - Page 113

Alpha-Log – User manual
LSI LASTEM SRL
INSTUM_03388
Page 113 / 116
Memory
Type
Three levels of memorization for more reliability:
1. 8/16 MB on Flash chip for LSI LASTEM file system
2. 400 MB data on Flash chip with UBIFS file system
3. Up to 32 GB data on USB memory with FAT32 file system
User interface
Display
57 x 19 mm, 4 lines x 20 char
Keyboard
4 buttons
LED
Diagnostic:
• Data transmission activity
• System status
• Battery charge status
• Computer status (OK/Error)
Clock
Accuracy
1 minute/month
Synchronization
Automatic, da Internet time (NTP)
ADC
Resolution
12 bits oversampled up to 14 bit
Filter
Noise filtering 50/60 Hz
Data transmission
Modem
External 3G/4G modems (connection to RS-232 port)
Router
3G-4G/External radio (connection to Ethernet port)
Wi-Fi
External antenna (connection to USB port)
Watchdog
Type
Redundant watchdog system
Linux computer
Type
Linux based on computer with open and user extendable
architecture
Processor
32 Bit
A/D converter
ADC 16 bit
Powering mode
• Always ON (always connected to the Internet)
• Automatic ON (activation triggered by data transmission,
improving the energy consumption)
Linux kernel
V. 2.6.35, Debian Wheezy Distribution
Ethernet
Ethernet 10/100 Mbps
USB port
2 USB connectors, Host, Type-A
Memory
2 GB Flash with UBIFS file system
RAM
128 MB