This RS232 to RS485 conversion card replaces the previous RS422 conversion card. Plus and minus 12Vdc power is no longer required as everything works off a standard +5Vdc supply connection. The new RS485 card retains the same advantages in its use of the two data direction monitoring LEDs and works with both the RS422 and RS485 standards. Line termination resistor networks are included as an integral part of the card's design.
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Note: The quoted prices for all circuit boards provided by JLC Enterprises are for the fabricated boards only, that is, without any electronic parts. All circuit boards come unassembled and less components. All holes are drilled and all circuit traces are tin plated for easy soldering. Where double-sided boards are provided, all feed through holes are plated-through. The SMINI, SUSIC, RS485, DIN32, DOUT32 and PGCC boards have solder masking on both sides, silk screen legend on component side and are factory tested against shorts and open circuits.