User's Manual Part 1

Specifications Expedite G301 OEM Module Specifications 27
P/N 90023363 Revision 1.8
Modem Power-On and Wake up Strategy
The Expedite G301 is designed so that the host has full control of powering up and
powering down the unit, both by hardware and software. There are two schemes available
to perform this function to accommodate different host preferences.
The first mode is called “pulsed power-on” and is selected by the host holding the
PUL_PWREN signal high. Note that there is an internal 47kΩ pull-up resistor to 2.5V on
this signal and it can be left unconnected on the host side. The second mode is called
“solid power-on” and is selected by the host holding the PUL_PWREN signal low.
GPIO4 46 General Purpose Input/Output 4 BiDir
GPIO5 45 General Purpose Input/Output 5 BiDir
GPIO6 44 General Purpose Input/Output 6 BiDir
ADC_IN_1 5 Analog to Digital Converter. The modem can monitor a
voltage on this pin.
IN
VCC_SIM 36 Subscriber Identity Module Supply. Used to supply the
power to an off-board SIM.
SUPPLY
DATA_SIM 34 SIM data line. BiDir
RST_SIM 39 SIM reset line. OUT
CLK_SIM 32 SIM clock line. OUT
SIM_IN 33 SIM detect line. Active high signal indicating to the
modem that a SIM is present
IN
MIC_INP 2 Differential Microphone Input (+) for voice communi-
cations.
IN
MIC_INN 4 Differential Microphone Input (-) for voice communica-
tions.
IN
SPKR_OUTP 3 Differential Speaker Output (+) for voice communica-
tions.
OUT
SPKR_OUTN 1 Differential Speaker Output (-) for voice communica-
tions.
OUT
BUZZER 8 Buzzer control signal from modem. OUT
RTS_2 38 Ready to Send for the secondary serial port on the
modem.
IN
DFM_2 43 Data to Modem for the secondary serial port on the
modem.
OUT
DTM_2 40 Data from Modem for the secondary serial port on the
modem.
IN
CTS_2 41 Clear to Send for the secondary serial port on the
modem.
OUT
Pins numbers not mentioned in the table should be left unconnected.