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724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
Page 59
Appendix C: RS-485 Connections
C.3 1-Port Serial Server Terminal Block Pin-out in RS-485F (Four-Wire, Full-Duplex) Mode
Figure C-3. Terminal block connector.
Table C-3. Terminal block connector pinning in RS-485F
mode.
Signal Name RS-422 Direction Terminal
Signal Ground GND — 1
Transmit Data (-) TXD(-) Out 2
Transmit Data (+) TXD(+) Out 3
Receive Data (+) RXD(+) In 4
Receive Data (-) RXD(-) In 5