Figure 29. At Communication With The Airprime Hl75Xx And Hl85Xxx - Sierra Wireless AirPrime HL Development Kit User Manual

Development Kit User Guide
Figure 29. AT Communication with the AirPrime HL75xx and HL85xxx
To make a voice call with the Development Kit, follow these steps.
1. Ensure that:

a power cable is connected to CN402

a USB cable is connected to CN901

a SIM card is inserted in SIM1 (CN800)

CN801 is connected with a jumper

an antenna is connected to CN303 (GSM antenna for the HL85xxx; LTE antenna for the
HL75xx)

an RF diversity antenna is connected to CN302 for the HL75xx

a handset is connected to CN1105
 SW1100 is switched to "PCM" (note that the HL7518, HL7519 and HL7548 do not support
PCM)
 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
4114877 Rev 5.0
Getting Started with the HL Series
Development Kit
CN303
CN302
SW1100
CN901
CN1103 and CN1104
SW1101
CN1105
CN801
CN800
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