Controller - Institute of Transportation Engineers
Controller - Institute of Transportation Engineers
Controller - Institute of Transportation Engineers
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2 INTRODUCTION<br />
2.1 Overview<br />
The Advanced <strong>Transportation</strong> <strong>Controller</strong> (ATC) is a general purpose field computer that<br />
is intended for continuous unattended operation in harsh environments. The Type 2070<br />
ATC defined in this standard is intended to be the first <strong>of</strong> what may be a family <strong>of</strong><br />
advanced transportation control devices.<br />
This standard defines specific, interchangeable modules that are combined to form a<br />
Type 2070 ATC that is capable <strong>of</strong> running control s<strong>of</strong>tware that might be provided from a<br />
variety <strong>of</strong> providers. These specifications, in many cases, define several module options<br />
that can be arranged in a variety <strong>of</strong> composition configurations to meet the needs <strong>of</strong> the<br />
user.<br />
In order to effectively use this standard, the procuring AGENCY should define the<br />
composition configuration that is intended to be provided in accordance with this<br />
standard. This standard lay out sample compositions for full, NEMA, Lite, and ITS<br />
configurations.<br />
2.2 <strong>Controller</strong>s<br />
The Type 2070 version <strong>of</strong> the ATC is designed such that all components are fully<br />
standardized and are therefore interchangeable. The<br />
The more general ATC<br />
standard also allows some<br />
latitude for manufacturers<br />
to customize the<br />
packaging. At this<br />
writing, the CPU, or<br />
Engine Board as we are<br />
calling it, are modular and<br />
interchangeable between<br />
manufacturers. Other<br />
components <strong>of</strong> the general<br />
ATC controller unit<br />
standard will not be<br />
required to be<br />
interchangeable between<br />
manufacturers, thus<br />
allowing maximum<br />
packaging flexibility<br />
RAM<br />
EPROM<br />
RTC<br />
DUART<br />
Data Key<br />
Host<br />
Board<br />
External Front Panel<br />
CPU<br />
ATC Engine Board<br />
EIA - 232<br />
(Multiple Ports)<br />
IEEE 802.3<br />
(Ethernet)<br />
Optional<br />
Notebook Computer<br />
which will allow the most cost effective design implementations where needed, as well as<br />
allowing for very small designs where needed for size restricted applications. The<br />
general ATC standard does not preclude other packaging implementations, which may be<br />
Serial I/O<br />
EIA - 485<br />
Fiber Transceiver<br />
Other Device ?<br />
Minimum System Boundry<br />
Power<br />
Supply<br />
Internal<br />
Front Panel<br />
(Optional)<br />
Serial Interface Units<br />
2070 Modem Card<br />
Serial Backplane<br />
(Optional)<br />
Standard for the ATC – Type 2070 March 29, 2001<br />
7
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