User Manual
Table Of Contents
- 1. Introduction
- 2. GR47/GR48 Radio Devices
- 3. Abbreviations
- 4. Mechanical Description
- 5. System Connector Interface
- 5.1 Overview
- 5.2 General Electrical and Logical Characteristics
- 5.3 Grounds
- 5.4 VCC - Regulated Power Supply Input
- 5.5 Battery Charging Input (CHG_IN)
- 5.6 Turning the Radio Device ON/OFF and the External Power Signal
- 5.7 Analogue Audio
- 5.8 PCM Digital Audio
- 5.9 Serial Data Interfaces
- 5.10 SIM Card Related Signals
- 5.11 Service/Programming
- 5.12 Buzzer
- 5.13 LED
- 5.14 General Purpose Digital I/O Ports
- 5.15 Extended I/O capabilities
- 5.16 General Purpose Analogue I/O Ports
- 5.17 External I 2C Serial Control Bus
- 5.18 TX_ON - Burst Transmission
- 5.19 Real Time Clock
- 6. Antenna Connector
- 7. Keyboard Interface
- 8. Hints for Integrating the Radio Device
- 9. Embedded Applications
- 10. TCP/IP Stack
- 11. Technical Data
- 12. Declaration of Conformity
- 13. Introduction to the Developer’s Kit
- 14. Using the Developer’s Kit
14. USING THE DEVELOPER’S KIT
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LZT 123 7589 R1A
14.1 Start up Check List
To use the developer’s kit in standard format check the following:
• With the case lid removed, make sure the radio device is plugged into
X1 and the RF lead is connected to the MMCX socket of the radio
device;
• Add your SIM card;
• Check the jumpers are in their default positions. Refer to Figure 14.3;
• Connect the serial cable between your computer and the UART
connector on the rear panel;
• Connect the antenna to the RF connector on the front panel;
• Connect the audio equipment if required;
• Plug the external power supply into the socket marked 5-32V DC on
the rear panel;
• Switch Vcc to INT;
• Push ON/OFF for at least 2 seconds until the yellow VIO LED is on.
Your developer’s kit should now be operational and ready to receive AT
commands.