Integration Guide
Version 1.11
GSM0000PB001
Page 28
1.11 - 4/22/03
6.6 I/O Signal Connector on the Enfora Enabler-G Module
The Enfora Enabler-G module communicates with the carrier board of the application via the 40-pin I/O
signal connector. The following table describes the pin assignments for the connector, sorted by pin number.
6.6.1
I/O Connector Pin Assignments
The following table shows the pin assignments for the input/output connector. The pin assignments are
shown in order of functionality.
PIN
#
FUNCTION
Serial
Pin
I/O
ENABLER-G
Description/Comments
1
Ground
5
R
GND
2
Ground
5
R
GND
Electrical power return for digital and analog
grounds.
3
Transmit (Data In)
3
I
TX
Transmit data. DCE Input signal. Active low. Main
serial interface receive data signal. During idle or
reset, signal will be a logic 1. Connects to a DTE, TX,
transmit data pin.
4
Receive (Data Out)
2
O
RX
Receive data. DCE Output signal. Main serial
interface transmit data signal. During idle or reset,
signal will be a logic 1. Connects to a DTE, RX,
receive data pin.
5
Data Carrier Detect
1
O
DCD
Data Carrier Detect. DCE Output signal. Active low.
Main serial interface data carrier detect signal.
Connects to a DTE, CD, and Carrier Detect pin.
6
Request To Send
7
I
RTS
Request-to-Send. DCE Input signal. Active low. Main
serial interface request to send signal. Connects to a
DTE, RTS, and Request-to-Send pin.
7
Data Set Ready
6
O
DSR
Data Set Ready. DCE Output signal. Active low. Main
serial interface Data Send Ready signal. Connects to
the DTE, DSR, and Data Set Ready pin.
8
Data Terminal Ready
4
I
DTR
Data Terminal Ready. DCE Input signal. Active low.
Main serial interface data terminal ready signal.
Connects to a DTE, DTR, and Data Terminal Ready
pin.
9
Clear To Send
8
O
CTS
Clear-to-Send. DCE Output signal. Active low. Main
serial interface clear to send signal. Connects to a
DTE, CTS, Clear to send pin.
10
Ring
9
O
Ring
Ring Indicator. DCE Output signal. Active low. Main
serial interface ring indicator signal
11
General Purpose I/O
I/O
GPIO1
12
General Purpose I/O
I/O
GPIO2
13
General Purpose I/O
I/O
GPIO3
14
General Purpose I/O
I/O
GPIO4
15
General Purpose I/O
I/O
GPIO5
16
General Purpose I/O
I/O
GPIO6
17
General Purpose I/O
I/O
GPIO7
18
General Purpose I/O
I/O
GPIO8
General-purpose I/O lines. Used as general input or
output lines for monitoring or control of external
devices. Requires customized software to implement.
Leave signals disconnected if function is not used.
19
V
CC
Operating Voltage
P
V
CC
Electrical power input to Enabler module. Refer to
table for operating power parameters.
20
V
PA
(Power Amp)
P
V
PA
Electrical power input to Enabler module. Refer to 5.3
Operating Power for parameters.
21
***Reserved
Do not connect!
22
V
PA
(Power Amp)
P
V
PA
Electrical power input to Enabler module. Refer to 5.3
Operating Power for parameters.
23
Remote SIM supply
O
SIM_VDD
24
Remote SIM reset
O
SIM_RST
25
Remote SIM clock
O
SIM_CLK
26
Remote SIM data
I/O
SIM_I/O
27
Analog Voltage 2
I
ADC2
Analog-to-Digital Converter Input 2.
0 – 1.75 Vdc range. 1.709 mV resolution. 10 bit.
28
Analog Voltage 1
I
ADC1
Analog-to-Digital Converter Input 1.
0 – 1.75 Vdc range. 1.709 mV resolution. 10 bit.
29
Microphone (-)
I
MIC-
30
***Reserved
Do not connect!
.
31
Remote On
I
Remote On
Active low. Must be tied to ground if “Remote On”
function is not needed.
