LTE-A Module Series
EM06 Series Hardware Design
EM06_Series_Hardware_Design 39 / 69
The following table shows the RF status indicated by WWAN_LED# signal.
Table 15: Network Status Indication by WWAN_LED# Signal
3.10.3. WAKE_ON_WAN#
The WAKE_ON_WAN# is an open collector signal which requires a pull-up resistor on the host. When a
URC returns, a one-second low level pulse signal will be outputted to wake up the host. The operation
status of the module is indicated by WAKE_ON_WAN# as shown below.
Table 16: State of the WAKE_ON_WAN# Signal
Wake up the host
1 s
High
Low
(ext ernal pull -up)
Figure 23: WAKE_ON_WAN# Behavior
WWAN_LED# Level
Description
Low Level (LED ON)
RF function is turned on.
High Level (LED OFF)
RF function is turned off if any of the following circumstances occurs:
⚫
The (U)SIM card is not powered
⚫
W_DISABLE1# is at low level (airplane mode enabled).
⚫
AT+CFUN=4
(RF function disabled)
WAKE_ON_WAN# State
Operation Status of the Module
Output a 1 s low level pulse signal
Call/SMS/Data incoming (the host waken up)
Always at high level
Idle/Sleep