ECI3828 Network Motion Control Card User Manual V1.5
disordered.
3.3.
RS232/RS422 Serial Port
RS232/RS422 is in one standard DB9 male socket and supports MODBUS_RTU
protocol and custom communication.
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Interface Definition
Terminal
PIN
Name
Function
1
422TX+
RS422 Send +
2
232RXD
RS232 signal, receive data
3
232TXD
RS232 signal, send data
4
422RX+
RS422 R
5
GND
Internal power ground
6
422TX-
RS422 Send -
7
422RX-
RS422 Receive-
8
NC
Reserved
9
E5V
5V power supply output (+), max is 300mA
Note:
1.
1. RS232 is Port 0, RS485 is Port 1 and RS422 is Port 2.
2.
2. The latest version supports RS422 interface.
3.3.1.
RS232/RS422 Interface Specification & Wiring
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Specification:
Item
RS232
RS422
Max Communication Rate
(bps)
115200
115200
Terminal Resistor
No
No
Summary of Contents for ECI3828
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