User Manual

LDS-3G / ULD-3G001
F702-2 Rev.0 USOL A4(210X297mm)
3. Specifications
3.1. Electrical Specifications
Specifications
Operation temperature range -20~55°C
External dimensions 100 x 100 x 130(H) mm
Weight 0.3kg [0.66lbs]
External Interface UART (LVTTL 3.0~3.3V)
Internal Power source Internal lithium battery (3.7V)
Communication Modem Global 3G (sierra)
Antenna 2.7 dBi Internal type (36.5*8*1 mm)
3.2. Pin Map
 UART
A universal asynchronous receiver-transmitter (UART) is a computer hardware device for
asynchronous serial communication in which the data format and transmission speeds are
configurable. The electric signaling levels and methods are handled by a driver circuit external to
the UART.