Operation Of Umts Module; Power On; Power On Uc20-Te-A; Power On Uc20 Mini Pcie - Quectel UC20 User Manual

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Operation of UMTS Module

4.1. Power On

4.1.1. Power On UC20-TE-A

1. Connect the UC20-TE-A module to the connector J101 on UC20 EVB, charge in the 5V power
adapter and pull S201 to ON state, then D103 will be light.
2. Press the S202 (PWRKEY) for at least 100ms. D101 (STATUS) will be light and the module will be in
the power-on mode.
The following table shows the module's working state which can be judged by D102 and D104.
Table 12: Indication of D102 and D104
Reference State
0.2s On/ 1.8s OFF
1.8s On/ 0.2s OFF
D102
NET_STATUS
0.125s On/ 0.125s OFF
Always ON
Always ON
D104
NET_MODE
Always OFF

4.1.2. Power On UC20 Mini PCIe

1. Connect the UC20 Mini PCIe module to the connector J801 on UC20 EVB, charge in the 5V power
adapter, the module will be in the power-on mode.
2. Pull S201 to ON state, D103 will be light and indicates power supply for EVB is ready. D101 (STATUS)
will be light which indicates the network registration mode.
UC20_EVB_User_Guide
Description
Networks searching.
Idle mode.
Data transfer is ongoing with GSM/3G network.
Voice Calling.
Registered to 3G network.
Others.
Confidential / Released
UMTS/HSPA Module Series
UC20 EVB User Guide
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