4114877
Rev 5.0
October 12, 2015
37
Development Kit User Guide
Getting Started with the HL Series
Development Kit
Test communications using a PC terminal emulator (for example, HyperTerminal) by entering
AT
.
The module should answer with
OK
.
Figure 28. AT Communication with the AirPrime HL6528x
4.3.2.
Make a Voice Call
To make a voice call with the Development Kit, follow these steps.
1.
Ensure that:
a power cable is connected to CN402
a UART RS232 cable is connected to CN700
a SIM card is inserted in SIM1 (CN800)
CN801 is connected with a jumper
a GSM antenna is connected to CN303
a handset is connected to CN1105
SW1100 is switched to either
“ANALOG” or “PCM” depending on whether analog or
digital audio is to be used
SW1101 is switched to either
“ON” or “OFF” depending on whether an audio amplifier is
used
Pins 1 and 2 of jumpers CN1103 and CN1104 are connected to bypass the audio amplifier
Pins 2 and 3 of jumpers CN1103 and CN1104 are connected to enable the audio amplifier
CN303
CN700
SW1100
CN1103 and CN1104
SW1101
CN1105
CN800
CN801
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