User's Manual

UMTS/HSDPA Module Series
UC15 Hardware Design
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A reference circuit is shown in the following figure.
Figure 36: Reference Circuit of the Network Indicator
3.17. Operating Status Indication
The STATUS is used to indicate the module operation status. When the module is turned on normally, the
STATUS will output high level.
Table 25: Pin Definition of STATUS
125ms High/125ms Low. Data transfer is ongoing.
Always High. Voice calling.
Always Low. Sleep.
Pin Name Pin No. I/O Description Comment
STATUS 54 DO Indicate the module operation status. 2.6V power domain.