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5
2.2. Interface
2.2.1. Notation
PWR: Power LED
OPR: Link LED
ANT: Antenna Connector (SMA Female)
RST: Reset Button
GND: Signal Ground
RXD: RS-232 Received Data
TXD: RS-232 Transmitted Data
VCC: System Power
2.2.2. RS-232 Signals
Pin Number
Notation
Direction
Description
1
VCC
Input
Vcc 3.3V ~ 16V
2
TxD
Output
RS-232 Transmitted Data
3
RxD
Input
RS-232 Received Data
4
GND
N/A
Signal Ground