B&B Electronics Zlinx 485 User Manual
Page 44
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Serial Connections
Manual Documentation Number: Zlinx485m-1808
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RS-232 Pinouts
RJ-45F
Pin
Signal RS-232
DCE
1 Signal
Ground
GND
---
2 Signal
Ground
GND
---
3
Receive Data
RD
IN
4
Transmit Data
TD
OUT
5
Clear to Send
CTS
IN
6
Request to Send
RTS
OUT
7 Not
Used
---
---
8 Not
used
---
---
Figure 38. RS-232 Connections for RJ45 type plug
Note: PIN 4 (RTS) is reserved for the configuration software only. Asserting RTS during normal operation will result in a
communication failure. Disable RTS if your hardware supports it
RJ45 Male to RS-232 Female Pinout
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