USER MANUAL – RTU-LP-ST
8
1.
CHARACTERISTICS
1.1.
RTU-LP characteristics
Supply voltage 8..30 Vdc
Digital Inputs isolation 500 Vdc
MODEM:
GSM/GPRS quad-band 850/900/1800/1900 MHz
GPRS multi slot class 10
GPRS max. 86 kbps (DL)
Coding scheme CS-1, CS-2, CS-3, CS-4
Up to 3 Years operation life with the standard 13000 mA/h @ 10,8V Battery (*)
Power Supply for external loop powered sensors (max 100 mA)
NR 4 digital inputs
NR 2 15-bit signed voltage/current programmable analog inputs
NR 2 relay digital outputs
NR 1 RS232 port
NR4 32 bits totalizers (max 1 Hz)
Data transmission on event and/or on demand (to SMS and/or to FTP server)
Datalogger internal Flash Memory: 2Mbytes
Max Analog Log speed: 30 seconds
Max Digital Log speed: 1 second
GSM status LED
Protocol on RS232: Modbus RTU Slave
32 bits ARM processor
Firmware update via RS232
(*) = With 1 SMS transmission for day, ALL Inputs OFF, No Aux Power Output, NO RS232
communication