User's Manual

Street Light Bridge Integrator’s Guide 11
Street
Light
Bridge
Street
Light
Bridge
Segment
Controller
Service
Distribution
Transformer
Power Line
Communications
Radio Frequency
Communications
Figure 1. A Basic Street Lighting Network
Because the Street Light Bridge module provides both ISO/IEC 14908-1 Control
Network Protocol power line communications and IEEE 802.15.4 (2.4 GHz) radio
frequency (RF) wireless communications, the street lighting network can
leverage the existing power line circuits to communicate with the luminaires, and
create small RF bridges to bypass the service distribution transformers. Each
Street Light Bridge module manages RF communications with other Street Light
Bridge modules, so that you do not need to set up and manage a complex RF
network – you simply install Street Light Bridge modules to extend power line
communications for the street lighting network.
You manage and control the street lighting network using an Echelon
SmartServer, known as the Segment Controller because it controls segments of
the street lighting network. A Segment Controller can consolidate data from half
a dozen or more service distribution transformers in a municipal residential
environment, allowing you to manage and control up to 200 devices – luminaires
and Street Light Bridge modules. For larger street lighting networks, you can
install additional Segment Controllers.
The Segment Controller
The Segment Controller is a SmartServer 2.0 (or later) that is configured to
manage a street lighting network. You use it to configure the power line channel
for repeating, so that each luminaire and Street Light Bridge module can forward
messages to luminaires and to Street Light Bridge modules within the network,
and you use it to define operational schedules for the luminaires.
See Chapter
3, Setting Up the Segment Controller , on page 27, Chapter 5,
Managing a Street Lighting Network , on page 47, and Chapter 6, Controlling a
Street Lighting Network
, on page 77, for more information about the Segment