Reliance Electric 57C442B Data Highway Plus Interface Module
The 57C442B is a Data Highway Plus Interface Module manufactured by Reliance Electric. Here are the technical specifications for this module:
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Frequency: 8 MHz
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Memory Port: 32K dual memory port
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Input Rating: 5VDC at 650 mA
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Additional Feature: Includes a separate memory area for transmitting statistical data, which is accessible by other devices on the network.
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Faceplate Features:
- 7-segment LED fault code indicator
- Green OK LED indicator
- Two station address thumbwheel dials
- Network port
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