Open-Q 2100 Development Kit
Open-Q™ 2100 Dev Kit User Guide
45
3.9.23
GNSS external antenna connector J3501
Figure 31 J3501 GNSS external antenna connector
The Open-Q 2100 carrier board has both PCB antenna and external antenna connector (SMA). User can
switch between PCB antenna and external antenna by using DIP switch S3500. The configuration of the DIP
switch is given in the table below. A passive or an active antenna may be used as external antenna and a
2.7V bias is provided on the antenna input for powering an active antenna.
Table 3.9-11 DIP switch S3500 configurations
Function
DIP
Switch
Description
Notes
GNSS antenna switch
S3500-1
Toggles between GNSS PCB
antenna and external antenna
Default out of the box
configuration is OFF which is
internal antenna selected.