User's Manual

3.6. User Interface Signals
Pin
NO.
Signal Name
Function
(Modem)
Pin Function Summary
9 GPIO NC
10 GPIO NC
11 BOOT_OK O Modem booting end / Modem Wake Up
12 MSG O Received emergency message from center
14 GPIO NC
27 48H_END O Signified in 48 hours standby mode ending
28 RESET_IN- I Modem Hardware reset input
30 ACC(POWER_ON) I Modem Power ON/Modem POWER Sleep
3.7. PCM Signals
Pin NO. Signal Name
Function
(Modem)
Pin Function Summary
16 PCM_3.3V_TXD O PCM DATA OUT
18 PCM_3.3V_RXD I PCM DATA IN
19 PCM_3.3V_CLK O PCM CLOCK
20 PCM_3.3V_SYNC O PCM SYNC