B&B Electronics ESR902 Guide de l'utilisateur Page 2
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- MARQUE LIVRES
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Intended Use
Opticom™ Central Management
Software assists traffic maintenance
personnel in the management of their
Opticom™ system. In order for central
management software to be deployed,
communications must be deployed to the
intersections where the Opticom Phase
Selectors are installed. Global Traffic
Technologies (GTT) has evaluated
commercially available communications
equipment for use with central
management software. The equipment
that has been evaluated is identified in
this technical bulletin.
Description
This document describes the various
communications devices that have been
tested with the central management
software and the device configuration
used in our testing. Testing was
performed in the GTT lab over the lab’s
internal network. Testing was performed
with Opticom Infrared phase selectors.
Communications Overview
Central management software is intended
to be deployed on an IP (internet
protocol) network. The traffic network
between the central management
software server (at the central site) and
the intersections may include fiber, hard-
wired Ethernet, or wireless media and
employ any number of intermediate
devices.
While central management software
supports the use of TCP/IP to
communicate with phase selectors, the
current generation of Opticom phase
selectors supports only serial protocol.
Typically, this requires that a serial
device server be installed in the traffic
cabinet to bridge from an Ethernet switch
in the cabinet to serial port on the phase
selector. Alternatively, a communication
device in the cabinet, such as a radio
module or DSL over copper module, may
include serial ports that can be cabled
directly to the phase selector.
While it’s easiest to use TCP/IP to
communicate from the central
management software server to the
cabinet, the software can also use serial
ports on the server. This is useful when,
for example, you are using an older serial
device server that does not support direct
use of TCP/IP from the application.
Support Disclaimer
GTT will provide limited, high level
support setting up and troubleshooting
the devices listed in this technical
bulletin. Our intent is to inform our
customers of the devices that we have
tested with the central management
software and the setup configuration that
we used in that testing as an aid in
deciding the type of communications
equipment to purchase. In-depth
questions concerning the
communications devices themselves
should be directed to the manufacturer.
Further, our testing has focused on
compatibility between central
management software, the serial device,
and the Opticom phase selector. We
have not tested other product quality
factors such as reliability and
environmental suitability.
Use of a firewall on your central
management software server, or between
the server and the traffic network, may
cause connection issues with some of
these devices. It may be necessary to re-
configure your firewall in order to
achieve reliable communication.
Technical Support
If you have any questions please call GTT
Technical Support at 1-800-258-4610.
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