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3. Interface
3.5 Audio
This module is provided with PCM interface. The resistor of pulled-up or
pulled-down in this pin must be over 50Kohm.
Pin No.
37
39
7
8
3.6 User interface
Pin No.
11
12
27
28
30
ACC_ON_SLEEP
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Signal Name
UART_RXD
UART_TXD
UART_RFR
UART_CTS
Table 4. PCM Pin descriptions
Signal Name
BOOT_OK
MSG
96H_END
RESET_IN-
Table 5. User interface Pin descriptions
Direction
I
O
O
I
Direction
O
Received emergency message
O
Signified in 96 hours standby
O
I
Modem Hardware reset input
I
Function
UART RX DATA
UART TX DATA
UART ready-for-receive
UART clear-to-send
Function
Modem booting end
/ Modem Wake Up
from center
mode ending
Modem Power ON
/ Modem Power Sleep
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