User Manual

Installation Guide: PETNET System Components
Figure 2 - Basic System Design of Itron’s PETNET Submetering Network Figure
PET Modules – Itron’s Meter End Point RF devices or PET modules are installed into the
Water, Electric and Gas meters and transmit usage data via RF to the PETRC unit
Network PETRC Unit – Itron’s Network PETRC unit receives Water, Electric and Gas usage
data via RF from the PET module, and sends the data to the head-end MV-RS Meter Reading
Software via telephone or cellular telephone.
PET Repeater Unit – Itron’s Network PET Repeater unit receives water, usage data via RF
from the PET module, and sends the data to the PETRC unit. The PET Repeater unit operates
similar to the PET in that it utilizes Frequency Hopping Spread Spectrum on a timed basis. The
transmission are relatively short < 400ms and communicate up to 45 PET message per
transmission. The PETRC unit synchronizes its receiver to the PET Repeater’s transmission
following acquisition. The PET Repeater unit also provides an identification number with each
transmission. The identification numbers of all PET Repeaters in the PETNET system are
entered into the PETRC unit to allow reception into the system database.
MV-RS Meter Reading Software - Water, Electric and Gas usage data sent by the network
PETRC unit via telephone or cellular telephone is processed by the head-end MV-RS Meter
Reading Software.