System Components
SICAM RTUs, SICAM AK 3 User Manual 93
DC2-028-2.03, Edition 07.2016
Communication plug, RJ45 (X0, X1, X2, X3)
Pin Ethernet V.28, RS232
1 TX+ CTS
2 TX- RTS
3 RX+ DSR
4 - TXD
5 - RXD
6 RX- GND
7 - DCD
8 - DTR
The abbreviations have the following meaning:
TX ........................... Transmit data (differential)
RX ........................... Receive data (differential)
CTS ......................... Clear to Send
RTS ......................... Request to send
DSR ......................... Data Set Ready
TXD ......................... Transmit data
RXD ......................... Receive data
GND ........................ Ground
DCD......................... Data Carrier Detect
DTR ........................ Data Terminal Ready
Engineering plug, USB mini-B (X4)
Pin Signal
1 VBUS … Power Supply Host -> Device
2 D- ... Data-
3 D+ … Data+
4 NC … not connected
5 GND … Ground
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