Ebyte M31 Series User Manual page 23

Chengdu Ebyte Electronic Technology Co., Ltd.
M31-AXAX4040G:
Symbol name
DI1 DI1 switch input
COM1 COM side of DI1
DI2 DI2 switch input
COM2 COM side of DI2
DI3 DI3 switch input
COM3 COM side of DI3
DI4 DI4 switch input
COM4 COM side of DI4
DO1 DO1 switch output
COM1 COM terminal of DO1
DO2 DO2 switch output
COM2 COM terminal of DO2
DO3 DO3 switch output
COM3 COM terminal of DO3
DO4 DO4 switch output
COM4 COM terminal of DO4
VO+ Power output positive pole The positive pole of the power supply output is consistent with the
VO+ Power output positive pole The positive pole of the power supply output is consistent with the
VO- Power output negative
pole
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+ Positive pole of power
supply
（DC9-36V）
LAN1 Network port
Copyright © 2012 , Chengdu Ebyte Electronic Technology Co., Ltd.
Function/Description
DI1 switch input interface, used in conjunction with COM1
COM terminal of DI1
DI2 switch input interface, used in conjunction with COM2
COM2 end of DI2
DI3 switch input interface, used in conjunction with COM3
COM side of DI3
DI4 switch input interface, used in conjunction with COM4
COM side of DI4
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
power supply voltage of the device.
power supply voltage of the device.
The negative pole of the power supply output is the same as the
power supply voltage of the device.
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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