Hardware Guide
Table Of Contents
- Introduction
- 2. Overview
- 3. GE865 Mechanical Dimensions
- 4. GE865 module connections
- 5. Hardware Commands
- 6. Power Supply
- 7. Antenna
- 8. Logic level specifications
- 9. Serial Ports
- 10. Audio Section Overview
- 11. General Purpose I/O
- 11.1. GPIO Logic levels
- 11.2. Using a GPIO Pad as INPUT
- 11.3. Using a GPIO Pad as OUTPUT
- 11.4. Using the RF Transmission Control GPIO4
- 11.5. Using the RFTXMON Output GPIO5
- 11.6. Using the Alarm Output GPIO6
- 11.7. Using the Buzzer Output GPIO7
- 11.8. Indication of network service availability
- 11.9. RTC Bypass out
- 11.10. External SIM Holder Implementation
- 12. DAC and ADC section
- 13. Mounting the GE865 on your Board
- 14. Packing system
- 15. Conformity Assessment Issues
- 17. Document History
GE865 Hardware User Guide
1vv0300799 Rev.15– 2012-04-23
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 14 of 77
WARNING:Reserved pins must not be connected.
NOTE:
If not used, almost all pins should be left disconnected. The only exceptions are the following
pins:
RTS pin should be connected to the GND (on the module side) if flow control is not used
pin
signal
F1,F2,F3
VBATT & VBATT_PA
G1, C2, C7, E5, E7, G5,
G4, G3, H3, H6
GND
B1
ON/OFF*
A3
TXD
C1 RESET*
A4
RXD
A1
RTS
D1
TXD_AUX
E1
RXD_AUX
H1
Service