Integration Guide
Version 1.11
GSM0000PB001
Page 29
1.11 - 4/22/03
Table 2 - Enabler-G Pin Assignments
I
=Input into Enabler;
O
=Output from Enabler;
P
=Power Input to Enabler;
R
=Power Return from Enabler
∗
Specific to Enabler device;
∗∗
Enabler-G modules configured for GSM audio capability;
∗∗∗
Reserved
for Enfora use only;
Pin orientation and use is subject to change
Figure 9
I/O Connector Pin Assignments
6.7 Control Connector Signal Descriptions and Functions
6.7.1 Input
Power
The Enfora Enabler-G module uses a single voltage source of VCC=+3.3V to 4.5V. (exact values of the
uplink currents are shown in Tables5.3.1 GSM Operating Power and 5.3.2 GPRS Operating Power). The
V
CC
line (pin 19) and V
PA
(pins 20 and 22) should be connected on the application board. The uplink burst
will cause strong ripple on the Voltage lines and should be effectively filtered.
It should be noted that the input voltage level should not drop below the minimum voltage rating under any
circumstances, especially during the uplink burst period.
Modem
RF Power Amp
Power,
Processing &
Digital Circuitry
Enabler-G Power Inputs
V
PA
V
CC
1000 uF
6.3 V
minimum
From Power
Source
Mount as close
to modem I/O
connector as
possible
Figure 10
Input Power
PIN
#
FUNCTION
Serial
Pin
I/O
ENABLER-G
Description/Comments
32
Earphone (+)
O
EAR+
33
***Reserved
Do not connect!
34
Earphone (-)
O
EAR-
35
Analog Output
O
DAC
Digital-to-Analog Output.
0.3 to 2.0 Vdc minimum range
36
Microphone (+)
I
MIC+
37
***Reserved
38
***Reserved
Do not connect!
39
Ground
5
R
GND
40
Ground
5
R
GND
Electrical power return for digital and analog
grounds.
