Port And Button Description - Ebyte M31 Series User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.

3.5. Port and button description

M31-AAAX4440G:
Symbol name
AI1 AI1 analog input
AI2 AI2 analog input
AI3 AI3 analog input
AI4 AI4 analog input
COMA AI analog input common
terminal
DI1 DI1 switch input
DI2 DI2 switch input
COMB DI switch input common
terminal
DI3 DI3 switch input
DI4 DI4 switch input
COMC DI switch input common
terminal
DO1 DO1 switch output
COM1 COM terminal of DO1
DO2 DO2 switch output
COM COM terminal of DO2
DO3 DO3 switch output
COM3 COM terminal of DO3
DO4 DO4 switch output
COM4 COM terminal of DO4
Reload Factory
reset/auto-negotiation
A(RS485) RS485 A interface
B(RS485) RS485 B interface
G(RS485) RS485G interface
PE ground
V-(DC9-36V) Negative pole of power
supply
V+（DC9-36V） Positive pole of power
supply
LAN1 Network port
Copyright © 2012 , Chengdu Ebyte Electronic Technology Co., Ltd.
Function/Description
AI1 analog input interface, used in conjunction with COMA
AI2 analog input interface, used in conjunction with COMA
AI3 analog input interface, used in conjunction with COMA
AI4 analog input interface, used in conjunction with COMA
AI1-AI4 share the COMA public terminal
DI1 switch input interface, used in conjunction with COMB
DI2 switch input interface, used in conjunction with COMB
DI1-DI2 share the COMB common terminal
DI3 switch input interface, used in conjunction with COMC
DI4 switching input interface, used in conjunction with COMC
DI3-DI4 share the COMC common port
DO1 switching output interface, used in conjunction with
COM1
COM terminal of DO1
DO2 switch output interface, used in conjunction with COM2
COM terminal of DO2
DO3 switching output interface, used in conjunction with
COM3
COM terminal of DO3
DO4 switching output interface, used in conjunction with
COM4
COM terminal of DO4
Press and hold for 5-10 seconds to restore factory settings;
double-click within 2 seconds to automatically negotiate the
expansion module
RS485 A interface
RS485 B interface
RS485G interface
ground
DC (9-36V) power supply negative interface
DC (9-36V) power supply positive interface
Standard RJ45 network cable interface
Distributed IO Host (M31 Series) User Manual
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