User's Manual

COMPANY CONFIDENTIAL
RF-TWACS Based AMR System DCSI CUSTOMER PRODUCT SPECIFICATION
May 30, 2003 Application Notes – Rev. 1 16
The session normally ends with a disconnect command.
The session abnormally ends whenever a packet exchange fails and the retry mechanism
is exhausted.
Maintenance Session (with an HHTR)
The HHTR maintains control of the session and can exchange (read and write) any
allowable data with the EMTR. The session concludes under HHTR control and ends
with a disconnect command.
Data Retention
Data is retained in the EMTR until new data is uploaded during an RMTR session or an
RMTR has been removed from the acquisition list.
4.2.3.4 EMTR Maintenance
There are no batteries in the EMTR, nor is any normal maintenance required. If however,
RMTR’s are installed or removed in the area, an EMTR within range must be configured
to accept it. The “Acquisition List” maintained in the EMTR must be modified to allow
the EMTR to accept session requests from the RMTR. The Acquisition List can be
updated by the installer using the HHTR.
4.2.4 Hand-Held Transceiver (HHTR) – Verification and Installation Tool
4.2.4.1 HHTR Specifications
Power Source: Six rechargeable AA batteries with a minimum life of 8 hours of
continuous use. (Figure 10)
Operating Modes: Work Order Entry – Field Installation Data Collection
RMTR
Configure – Configures IED
Replace - Swap-out an old RMTR with a new one.
Status – IED Configuration and battery status
Install – Add an RMTR to an EMTR’s acquisition list.
Communication Status – RSSI, Engineering data, IED
configuration and battery status
Review – Review what was just done for the present order
number.
EMTR
EMTR Replace – Swap-out an old EMTR with a new one
(uploads the acquisition list from the old unit and
downloads it to the new EMTR).
View Acquisition List – Retrieves acquisition list from the
EMTR and displays how they are mapped internally
Remove RMTR from Acquisition List – Deletes entry.
Serial Port – Isolated RS232 compliant port to logic-level
RS232 level shifter
TWACS