UMTS/HSPA+ Standard Module Series
UC200T-GL Mini PCIe Hardware Design
UC200T-GL_Mini_PCIe_Hardware_Design 31 / 51
The following tables show the detailed network status indications of the LED_WWAN# signal.
Table 14: Indications of Network Status (AT+QCFG="ledmode",0, Default Setting)
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
Table 15: Indications of Network Status (AT+QCFG="ledmode",2)
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
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.
Figure 14: WAKE# Behavior
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