LTE Standard Module Series
EC25 Mini PCIe Hardware Design
EC25_Mini_PCIe_Hardware_Design 35 / 79
Table 15: Indications of Network Status (AT+QCFG="ledmode",0, Default Setting)
Table 16: Indications of Network Status (AT+QCFG="ledmode",2)
3.10.6. WAKE# Signal
The WAKE# signal is an open collector signal which is similar to RI signal, but a host pull-up resistor and
AT+QCFG="risignaltype","physical"
command are required. When a URC returns, a 120ms low level
pulse will be outputted. The state of WAKE# signal is shown as below.
URC return
120ms
High
Low
(external
pull-up)
Figure 14: WAKE# Behavior
Pin Status
Description
Flicker slowly (200ms Low/1800ms High)
Network searching
Flicker slowly (1800ms Low/200ms High)
Idle
Flicker quickly (125ms Low/125ms High)
Data transfer is ongoing
Always Low
Voice calling
Pin Status
Description
Low Level (Light ON)
Registered on network successfully
High Impedance (Light OFF)
No network coverage or not registered
W_DISABLE# signal is at low level. (Disable RF)
AT+CFUN=0
,
AT+CFUN=4