Data Sheet
Mesh Networking Module CTL3212
Copyright © 2016 Computime Limited. All rights reserved.
Rev. 2
The following table is the setting for the CTL3212 to US and Europe market:
12. PCB Layout Recommendations
Please reference Mechanical Dimensions shown in next section for PCB layout.
The area underneath the module should be covered with solder mask in order to prevent short
circuit on the test pads on the back side of the module. A solid ground plane under the module is
preferred.
As the module integrated with onboard PCB trace antenna, the mounting position of the module will
have great impact on the RF performance. There should not be any trace, ground plane or metal
part underneath or nearby the area of the onboard PCB trace antenna. The figure below shows an
example how the module positioned on the mother PCB.
Figure 4: A recommended placement of the module on a main PCB
FCC/IC
Channel
CH11~25
CH26
Freq(MHz)
2405~2475
2480
Power setting
19dBm
19dBm ( base on FCC
test result to adjust)
CE
Channel
CH11~CH26
Freq(MHz)
2405~2480
Power setting
10dBm