3PXCC4A Serial Card | RS-422 Four Wire Device |
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| TD(B+) Pin 1 | | | RD(+) | |
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| TD(A-) Pin 2 | | | RD(-) | |
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| RD(B+) Pin 3 | | | TD(+) | |
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| RD(A-) Pin 4 | | | TD(-) | |
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| GND Pin 8 | | | GND | |
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Figure 5. RS-422/RS-485 (Four Wire) Pinout Description
3PXCC4A Serial Card
TD(A-) Pin 2
TD(B+) Pin 1
RD(A-) Pin 4
RD(B+) Pin 3
GND Pin 8
RS-485 Two Wire Device
DATA (-)
DATA (+)
GND
Figure 6. RS-485 (Two Wire) Pinout Description
Communication Cable Data
The 3PXCC4A Serial Card communicates using RS-232,
RS-422, and RS-485 communications. The communication cable specifications are 24AWG (wire gauge) and 30pF/ft. (capacitance rating). Twisted pairs are ideal for the RS-422/RS-485 Cable in order to suppress noise on the data line. B&B Electronics can provide this communication cable for RS-232 or RS-422/RS-485 Applications. The Model ETC8195 is a cable style that can be used for RS-232 Applications, and Model ETC8506 can be used for RS-422/RS-485 Applications.
Manual Document# 3PXCC4A3001 | 41 |
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 B&B Electronics Ltd – Westlink Comm. Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
