User's Manual

12 Universal Metering Transponder for kV2c™ Meter User Guide
Functional Description of the UMT-C-KV
Figure 2.3 Block diagram of the UMT-C-KV 2.0
The kV2c meter is plugged into an American National Standards Institute (ANSI)
industry standard meter socket. All UMT-C-KV models can perform five minute
reads of voltage values. A choice between 60-, 30-, 15-, 10-, or 5-minute interval
electric metering is available. 32 registers from the kV2c meter can be mapped to
the transponder. Six of these data values are pre-defined in the transponder.
Table 2.1 Explanations for block diagram components
Component Definition
TWACS UMT-C-KV
microprocessor
Processes all inputs and generates and
controls transmission of outputs
Power loss detection UMT-C-KV response facilitates orderly
shutdown and saving of important data when
AC power is not adequate for operation
kV2c Meter Provides metering data to the UMT-C-KV
via serial communications
TWACS outbound
detection circuitry
Monitors the AC power for TWACS
outbound signal
Serial port - test Used to perform initial programming
Non-volatile memory Preserves register data during power outages
TWACS inbound
generation circuitry
Generates TWACS inbound messages at the
UMT-C-KV, which are transmitted to the
SCE
EMTR-3-KV Electric Meter Transceiver-3. Serves as the
gateway to the TWACS network for the
remote RF water, gas, or propane meters.
TWACS
UMT-C-KV
Microcontroller
SERIAL PORT
(TEST)
NONVOLATILE
MEMORY
GE
kV2c/c+
Meter
SERIAL
LINK
POWER
LOSS
DETECTION
TWACS
OUTBOUND
DETECTION
CIRCUITRY
TWACS INBOUND
GENERATION
CIRCUITRY
EMTR-3-KV