Telit EZ10-GPRS/-PCS
Product Description
80269ST10014a, Rev. 3 – 26/09/05
Reproduction forbidden without written authorization by Telit Communications S.p.A.
Page 16 of 74
All Rights reserved – Right of modification reserved
2.5.3 POWER / GPIO3 Connector
Connector type on the terminal:
•
Molex 4-pin connector part no.:43045-0400 male
Pin description:
•
“GND” = Ground reference (1x POWER, 1x Signal)
•
“Input Power” = 9 - 24VDC (see versions & ratings above)
•
“Power Good” = signal input/ connected to
GPIO3
through series resistor (version 2.2-4: 100 Ohm, version 5:
10k), considered for status sensing of attached special power
supply units.
Voltage range allowed on this pin: 0-3,6VDC vs. GND.
2.5.3.1 “Power Good” Function
In certain applications, the EZ10 Terminal is supplied through a power supply circuitry including
a backup battery. Therefore, repeated polling of the input signal on the “Power Good” (= high
(3V), when mains power fails) can be used by the Software on the host controller (or by a
PYTHON script) to initiate a certain behavior of the module or a notice through the GSM
network services to the far end application.
NOTE: The Power Supply equipment available as separate accessories from Telit might have a
bridge between “Power Good” and GND on the 4-pin connector (Molex 43025-400).
2.5.4 RJ11 (AUX) connector
Connector type on the terminal:
•
Molex RJ11/6pin, part no.:95001-2661
The voltage range allowed on each pin is 0-3,6V DC.
The signals on this connector depend on the version of the EZ10
Terminal, which can be seen from the suffix on the
Type Label
:
•
The models
Telit EZ10-GPRS wireless modems
(AUDIO) have analog audio input/output at the RJ11
connector. The pin 2 is connected to the ON/OFF signal
input of the GM862 Engine, and the is
referenced to GND.
•
The model
EZ10-PCS
with PYG Option
has 4 digital
general purpose inputs/outputs (GPIO) at the RJ11
connector. AUTO POWER ON is enabled.
NOTE:
Always verify the
Type Labels
on the under side of the
Telit EZ10 Terminals
in order to
identify the model and especially the
version of the Interfaces at the RJ11 connector
. This
connector can bear AUDIO lines or GPIO lines. It can be identified by the writing
AUDIO
in older
production lots or by the writing
AUX
in newer production lots.
The
Telit EZ10-PCS
with PYG Option
has General Purpose Inputs/Outputs instead of the
Audio/Remote Power ON/OFF lines on the RJ11 connector.
Input
Power
Power
Good
GND
GND
FRONT VIEW
Pin 6
Pin 1
FRONT VIEW