User's Manual
Table Of Contents
- GC864 QUAD V2andGC864 DUAL V2Hardware User Guide
- APPLICABILITY TABLE
- 1 Introduction
- 2. Overview
- 3. GC864 Mechanical Dimensions
- 4. GC864-QUAD V2 / GC864-DUAL V2 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. Magnetic Buzzer Concepts
- 11.9. Using the Temperature Monitor Function
- 11.10. Indication of Network Service Availability
- 11.11. RTC Bypass Out
- 11.12. DAC Converter
- 11.13. ADC Converter
- 12. Assembly the GC864-QUAD V2 / GC864-DUAL V2 on the Board
- 13. Packing System
- 14. Conformity Assessment Issues
GC864 Hardware User Guide
1vv0300874 Rev.0 – 2010-01-25
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved. Page 59 of 64
12.1.1. Debug of the GC864-QUAD V2 / GC864-DUAL V2 in Production
To test and debug the mounting of the GC864, we strongly recommend to foreseen
test pads on the host PCB, in order to check the connection between the GC864-
QUAD V2 / GC864-DUAL V2 itself and the application and to test the performance of
the module connecting it with an external computer. Depending by the customer
application, these pads include, but are not limited to the following signals:
Pin Signal I/O Function
Internal
Pull up
Type
ADC Converters
5,6,7,
46
GND - Ground Ground
1,2,3,4 VBATT - Main power supply Power
25 C103/TXD I Serial data input (TXD) from DTE CMOS 2.8V
26 C104/RXD O Serial data output (RXD) to DTE CMOS 2.8V
53 ON/OFF* I Input command for switching power ON or
OFF (toggle command). The pulse to be sent
to the GC864-QUAD V2 / GC864-DUAL V2 must
be equal or greater than 1 second.
47K
Ω
Pull up to
VBATT
54 RESET* I Reset input
49 PWRMON O Power ON Monitor CMOS 2.8V
23 RX_TRACE I RX Data for debug monitor CMOS 2.8V
24 TX_TRACE O TX Data for debug monitor CMOS 2.8V
47 SERVICE I SERVICE connection CMOS 2.8V