User's Manual

DRAFT
TWACS
®
- ORION
®
for CENTRON
®
Meter User Guide 47
Electronic Metering Assembly (EMA)
An electronic assembly integrated into an electric meter to add TWACS communications
capability to the meter.
Electronic Meter Transceiver (EMTR)
An electronic communication device that transmits and receives using RF transmission.
EMA
See Electronic Metering Assembly.
EMTR
See Electronic Meter Transceiver.
Federal Communication Commission (FCC)
The Federal Communications Commission (FCC) is an independent United States
government agency, directly responsible to Congress, and is charged with regulating
interstate and international communications by radio, television, wire, satellite and cable.
Among its duties, the FCC is responsible for rating personal computers and other
electronic equipment as either Class A or Class B. The ratings indicate how much
radiation a particular device emits.
feeder identification
Identifies which feeders are connected to which bus(es).
firing angle
The place on the sine wave where the RTS places the TWACS signal.
frequency shift keying
A data transmission control method that modulates, i.e. “shifts” between two radio
frequencies.
hand held transceiver - Low Power (HHTR-LP)
A control device used to set up, link, and establish communication between the EMTR
and Badger components of the TWACS RF system.
industrial, science, and medical (ISM)
An unlicensed radio frequency band.
interval
A relatively short time period over which energy use data is recorded by the transponder.
The interval may be set for 15, 30, or 60 minutes, depending on the transponder type.
Interval data is recorded for each consecutive interval.