User's Manual
Table Of Contents
- Foreword
- Important Safety Information
- Contents
- About this Document
- Related Publications
- Product Description
- Features
- Specifications
- Air Interface
- Product Functionality
- Contents
- Integration Goal and Objectives
- Customer Problem Isolation
- Wireline and Wireless Communications
- Design Tips for Serviceability
- Environmental Issues
- Regulatory Requirements
- Contents
- Power Supply
- Host Interface
- Power Management
- Antenna Systems
- Hardware Recommendations
- Battery Selection Criteria
- Contents
- Hardware Integration
- Application Software
- Final Assembly
- Installation
- Troubleshooting
- End User Problem Resolution
- Service Depot Repair
- Contents
- Accessories and Options
- Abbreviations and Acronyms
- Desense Overview
- Desense Measurement Techniques
- Preparing the Device Under Test
- Performance Goals
- Methods of Controlling Emissions
- Antenna
- Summary
- FLEX Application Protocol Licensing
- Licensing
July 23, 2002 5-11
CreataLink2 XT Hardware Integrator’s Guide Testing
Service Depot Repair
Service Depot Repair
This chapter describes tests that you can perform on a unit that is sent to you for
service. These tests were designed to help you determine the specific problem and
decide whether to send them to SmartSynch, Inc. for repair. An end-to-end or loop-
back test involves all elements of the network and the data transceiver.
Screening
Screening requires the following operational items:
• RS-232 cable/power supply
• PC or other device that supports the CLP
• A protocol analyzer to view communications between the data transceiver and
the external device
The objective is to test the suspect unit in a known, stable environment in which
all other components are known to be operational:
1. Connect the data transceiver to a PC or other device that supports the CLP,
and apply power.
2. Determine if there is a serial problem with the data transceiver:
• Issue the CLP Get Configuration command (see Communication
Linking Protocol Reference Manual for more information).
• The data transceiver responds to the command by sending a block of
configuration information.
• If the data transceiver does not respond, check cable connections, baud
(configurable), and word format (must be 8-bit, no parity).
• If not successful, the unit has a problem with the serial port.
3. Determine if the data transceiver detects the network:
• Wait approximately six minutes to allow the device time to acknowledge
the system and then issue the Get Status command (see
Communication Linking Protocol Reference Manual for more
information).
• The data transceiver responds with a block of status information. The
fourth byte of the status information is the out-of-range indicator. If this
location contains an ASCII 1, the unit is not detecting the system and is
out of range. This implies a problem with the receiver.
4. If the data transceiver detects the network, determine if the network detects
the data transceiver:
• The 17th byte of the status information is the registration information.
If this byte contains an ASCII 0, the unit is not registered. This indicates
a problem with the address programmed in the unit, the transmitter, or
the configuration of the unit information in the network database.
5. If the data transceiver and the network acknowledge each other it should be
possible to transmit and receive messages:
• Issue the Transmit Message CLP command, (see Communication
Linking Protocol Reference Manual for more information), with the
addressing information configured to send the message to the
CreataLink2 XT data transceiver initiating the message.
• Repeatedly issue the Get Status command, (see Communication
Linking Protocol Reference Manual for more information), until byte
2 of the status information returned by the data transceiver indicates
success (bit3-bit1 = 100), or failure (bit3-bit1 = 010).