ThingMagic Micro Hardware - Manual (Page 63)

Antenna Ports
A D I V I S I O N O F T R I M B L E
58 Functionality of the Micro
ONLY GPIO 2 Used for Antenna Switching
Port Power and Settling Time
The Micro allows the power and settling time for each logical antenna to be set using the
reader configuration parameters
/reader/radio/portReadPowerList and /
reader/antenna/settlingTimeList, respectively. The order the antennas settings
are defined does not affect search order.
Note
Settling time is the time between the control lines switching to the next
antenna setting and RF turning on for operations on that port. This allows
time for external multiplexer’s to fully switch to the new port before a signal is
sent, if necessary. Default value is 0.
Logical Antenna
Setting
GPIO
Output 2
State
Active Micro
Physical Port
1 Low A1
2 Low A2
3 High A1
4 High A2