24
/
50
WWAN_LED_N
VCC
R
Figure 10: WWAN_LED_N Signal Reference Circuit Diagram
The following table shows the network status indications of the WWAN_LED_N signal.
Table 10: Indications of Network Status
3.8.
Antenna Interfaces
EP06 includes a main antenna interface, an Rx-diversity antenna interface which is used to resist the fall
of signals caused by high speed movement and multipath effect, and a GNSS antenna interface. The
impedance of antenna port is 50Ω.
3.8.1.
Main/Rx-diversity Antenna Interface
3.8.1.1.
Pin Definition of RF Antenna
The pin definition of main antenna and Rx-diversity antenna interfaces are shown below.
Table 11: Pin Definition of the RF Antenna
LED_WWAN_N
Description
Low Level (LED ON)
Registered on network
High Level (LED OFF)
No network coverage or not registered
W_DISABLE_N signal is at low level. (Disable the RF)
AT+CFUN=0
or
AT+CFUN=4
Pin Name
Pin No.
I/O
Description
Comment
ANT_MAIN
107
IO
Main antenna pad
50Ω impedance
ANT_DIV
127
AI
Receive diversity antenna pad
50Ω impedance
