B&B Electronics 3PXCC2a Manuel d'utilisateur télécharger pdf (Page 3)

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Note: DB9 & DB25 pin numbers are molded into the connector. To locate pin #1 on the male

connector hold the connector horizontally with the row with the most pins on top, the upper

leftmost pin is #1. On a female connector, the upper rightmost is #1.

4-WIRE RS-485 TESTING

LOOPBACK CHECKS

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B&B Electronics 3PXCC2a Manuel d'utilisateur Page 3