User's Guide

Smart Machine Smart Decision
SIM5320ALD EVB User Guide 20.08.2014
11
1 DCD O Data carrier detection
2 TXD O Transmit data
3 RXD I Receive data
4 DTR I Data Terminal Ready
5 GND Ground
6 NC NC
7 RTS I Request to Send
8 CTS O Clear to Send
9 RI O Ring Indicator
4.5 Operating Status LED
Figure 8: Status LED
Table 5: Network status LED
D301 Status Module Status
Off Module is not running
On
Module is running, or voice call is connected
800ms On/ Off
Module find the network and registered
200ms On/ Off
Data communication
LED I/O Description
D201 O ADAPTER power indicator
D202 O USB power indicator