Installation Guide

Table Of Contents
Access Points Controller Card (APCC) 13
Sensys Networks, Inc. Installation Guide
Chapter 4
SPP Installation Considerations
This chapter provides the installation considerations for the SPP. Prior to
installing the SPP, ensure that the following aspects have been considered in the
site design.
Powering the SPP
Collecting Data From the APCC
Determining the Location of the SPP
Each consideration is discussed below. In addition, refer to the Sensys Networks
Wireless Vehicle Detection System Reference Guide, Design Guidelines for
Freeway Applications, and Design Guidelines for Intersection Applications for
more information.
Powering the SPP
The overall network design determines how the SPP is powered; two general
models are supported:
Acquiring power directly from a traffic controller cabinet
Acquiring power from a traffic controller using optional isolator
Acquiring Power From a Traffic Controller
An SPP can be directly interfaced to a traffic signal controller through an APCC.
When this is the case, power to the SPP is drawn from the traffic controller as
shown in the following figure.