User's Manual

GWM300 Hardware Interface Overview
2.1 Key Features at a Glance
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 GWM300_HIO_v01 2016-01-26
Confidential / Released
Page 18 of 35
Interfaces
RS232 RS-232 interface as part of 8-pin Molex Microfit for AT commands and data:
• Supports RTS/CTS hardware handshake
• Supports software XON/XOFF flow control
• Multiplex ability according to GSM 07.10 Multiplexer protocol
• Baud rates from 1200bps to 921,600bps
• Autobauding supported
Power supply Power supply (BATT+) as part of 8-pin Molex Microfit
SIM card reader Supported SIM cards: 3V, 1.8V
Antenna Antenna connected via female SMA connector
Power on/off, Reset
Power on Power supply line at power connector
Power off Normal switch-off by AT^SMSO
Reset Orderly shutdown and reset by AT command
Special features
Status indication LED to indicate operating status.
Real time clock Timer functions via AT commands
Phonebook SIM card and terminal
Feature Implementation