Atop Technology MB5416A2 User manual - Manual (Page 58)

Atop Modbus Gateway
MB54XX-X Series
User’s Manual V 1.1
55
Serial and RJ-45 Connectors Pin Assignments
RJ45 to Serial Connectors
Table 5. 2
Ethernet RS-232 RS-422 RS-485
Pin 1 Tx+ RTS - -
Pin 2 Tx- DTR TX- -
Pin 3 Rx+ TXD TX+ -
Pin 4 SG SG SG
Pin 5 SG SG SG
Pin 6 Rx- RXD RX+ Data+
Pin 7 DSR RX- Data-
Pin 8 CTS - -