Technical Specs

Electrical Specifications
Rev 3 Oct.20 33 41113694
Figure 2-9: Example LED
Antenna Control
Note: Host support for antenna control signals is optional.
The EM7411 provides four output signals (listed in Table 2-8) that may be used for host
designs that incorporate tunable antennas. Customers can configure these signals as
appropriate for the operating band(s) using the command AT!ANTSEL.
Note:
• Sierra Wireless recommends that two signals be used for high bands, and the other
two signals for low/mid bands.
• To avoid detuning the PCC band, customers must make sure there are no GPIO state
conflicts between the PCC and SCC for all supported CA combinations.
Table 2-8: Antenna Control Signals
Name Pin Description
ANTCTL0 59
Customer-defined external switch controls for tunable
antennas
ANTCTL1 61
ANTCTL2 63
ANTCTL3 65
Current limiting Resistor
LED
VCC
MIO
Module
LED#