User's Manual

COMPANY CONFIDENTIAL
RF-TWACS Based AMR System DCSI CUSTOMER PRODUCT SPECIFICATION
May 30, 2003 Application Notes – Rev. 1 20
There are many different ways to evaluate a site. Some are listed below:
1. The HHTR may be used to harvest engineering data from an EMTR which has
collected a history of previous RF communications with a particular RMTR. The
Engineering Data register is an 8 bytes register that allows assessment of the radio
link quality. Information contained in this register includes: Last Power Amplifier
Gain, Last Channel, Last RSSI, Channel Abandonment, Acquisition Failures,
Error Codes for Last Failure and a 24 Hour Acquisition Log.
2. The HHTR may be used prior to transceiver installation to evaluate a given site.
HHTRs and special RMTRs may be positioned in various locations to evaluate
signal strength and quality.
Commercially available test tools are available for RF Site Survey, but direct use of the
HHTR product itself reduces the amount of tools that an installer must carry.
4.2.4.2.5 Transceiver Equipment Diagnostics
New installations as well as problematic ones will require on-site troubleshooting. (A
need also exists for a meter-shop test-tool). The HHTR can be used to exercise
transceivers. The HHTR is able to read the device tables, including the Engineering Data
tables. The HHTR can initiate an exchange between field devices.
The HHTR will be able to read the EMTR or RMTR tables to investigate a problem.
Certain tables indicate device status. Other tables, provide AMR data. The Engineering
Data field from the Acquisition List can be particularly helpful in analyzing historical
communcation performance.
4.2.4.2.6 Installation Data Collection
When a new RMTR is installed, the EMTR raises a diagnostic flag that causes the CCE
to read tables and discover the port number, serial number, and other associated account
information. The HHTR may collect installation data that serves to collaborate with
information discovered via TWACS.
4.2.4.2.7 Other HHTR Applications
Other possible applications of the Hand-Held Test Tool Are:
• RCE Functional Testing
• Manufacturing and Integration Tests
• Emulation of older Test Tools (HRTS)
• Upgrade Transceivers Firmware
4.2.4.3 HHTR Maintenance
Batteries must be recharged daily.