User's Manual

DRAFT
Chapter 1 - Getting Started 1
TDC-0613-003b 03/06
Chapter 1
Getting Started
What is a Repeater?
Overview The repeater is a network component that collects data from nearby ERT end-
points and forwards data to a collection device, such as a cell control unit (for
Fixed Network applications) or a Mobile Collector radio (for Mobile Collection
applications).
A repeater expands the footprint of these devices by forwarding data between
endpoints and the CCU or Mobile Collector radio. Single-channel repeaters for-
wards both standard consumption messages (SCM) and interval data messages
(IDM), and eight-channel repeaters forward SCM, IDM, and Type 25 packets
(which are used to indicate positive outage notifications and restorations).
The CCU or MC radio, in turn, communicates the data to the Fixed Network
Collection Engine or Mobile Interface. The CCU or MC radio opens communi-
cation sessions at regular intervals, listening for data from the network repeaters.
The CCU or MC radio then processes returned data according to the default or
custom parameters configured at the Collection Engine or Mobile Interface for
each meter. Repeaters communicate with ERT endpoints and the CCU or MC
radio in the 900 MHz radio band.
Repeater
Identification
Each repeater has a unique identification number stored in its internal flash
memory. The ID number is used for remote unit communications, setting the
timing for acknowledgements, setting the index into the transmit, receiving hop
tables at power up, setting the random sequences in the transmit hop table, and
other functions. A repeater does not track other repeaters within its communi-
cation range.
Repeater Types Itron offers two types of repeaters: single-channel and eight-channel. Each type
of repeater can be installed multiple ways.
The type of repeater you install will depend on your site characteristics and
network needs. See Planning for Repeater Installations on page 6 for more
information.
To learn how to install these types of repeaters, see:
• Chapter 2, “Single-Channel Repeater Installation” on page 7
• Chapter 3, “Eight-Channel Repeater Installation” on page 19