Multitech MultiConnect MTPCIE-EV3, Developer'S Manual

Page: 52 / 63

SPECIFICATIONS
52 MultiConnect
®
PCIe MTPCIE-EV3 Developer Guide
PIN # Name I/O Function Type Notes MTPCIE-EV3
41 3.3Vaux I 3.3Vaux
42 LED_WWAN# O 3G Cellular STAT LED
Output 1.8V Command to enable LED
function, AT#GPIO=1,0,2.
This pin needs an
external transistor to
drive an external LED.
Therefore, status
indicated is reversed
with respect to the pin
status:
Permanently off = Device
off
Fast blinking (Period 1s,
Ton 0.5s) = Net search /
Not registered / turning
off
Slow blinking (Period 3s,
Ton 0.3s) = Registered
full service
Permanently on = a
voice call is active
43 GND Ground
44 DCD O 3G Cellular UART DCD 1.8V
45 CTS O 3G Cellular UART CTS 1.8V
46 GPIO_3 I/O 3G Celllular General
purpose I/O 1.8V AT#GPIO=3,x,x
47 RTS I 3G Cellular UART RTS 1.8V Avoid having any HIGH
logic level signal applied
to any 3G input digital
pins when the 3G
module is powered off
or during an ON/OFF
transition.
48 DTR I 3G Cellular UART DTR 1.8V Avoid having any HIGH
logic level signal applied
to any 3G input digital
pins when the 3G
module is powered off
or during an ON/OFF
transition.
49 RXD O 3G Cellular UART
Receive data 1.8V