Ebyte M31 Series User Manual page 24

Chengdu Ebyte Electronic Technology Co., Ltd.
M31-AXXXA000G:
Symbol name
DO1 DI1 switch input
DI2 DI2 switch input
DI3 DI3 switch input
DI4 DI4 switch input
COMA DI switch input common
terminal
DI5 DI5 switch input
DI6 DI6 switch input
DI7 DI7 switch input
DI8 DI8 switch input
COMB DI switch input common
terminal
DI9 DI9 switch input
DI10 DI10 switch input
DI11 DI11 switch input
DI12 DI12 switch input
DI13 DI13 switch input
DI14 DI14 switch input
DI15 DI15 switch input
DI16 DI16 switch input
COMB DI switch input common
terminal
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
DI1 switch input interface, used in conjunction with COMA
DI2 switch input interface, used in conjunction with COMA
DI3 switch input interface, used in conjunction with COMA
DI4 switch input interface, used in conjunction with COMA
DI1-DI4 share the COMA common port
DI5 switch input interface, used in conjunction with COMB
DI6 switch input interface, used in conjunction with COMB
DI7 switch input interface, used in conjunction with COMB
DI8 switch input interface, used in conjunction with COMB
DI5-DI8 share the COMB common terminal
DI9 switch input interface, used in conjunction with COMC
DI10 switch input interface, used in conjunction with COMC
DI11 switching input interface, used in conjunction with
COMC
DI12 switch input interface, used in conjunction with COMC
DI13 switch input interface, used in conjunction with COMC
DI14 switch input interface, used in conjunction with COMC
DI15 switch input interface, used in conjunction with COMC
DI16 switch input interface, used in conjunction with COMC
DI9-DI16 share the COMC common terminal
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
21