User's Guide

7
RS485 Terminal Resistor:
DIP Switch
Description
1 on 2 off 3 off
Add 120 Ω resistor between A and B
1 off 2 on 3 off
Add pull-down resistor on B
1 off 2 off 3 on
Add pull-up resistor on A
2.4 LED Indicators
LED
Indication
Status
Description
SYS
System Status
Static On
System works
Slowly Blinks
Fail to acquire data from data interfaces
Static On
System error
ACT
Network Status
Off
Not join/register to network
Blinks as Requests
Send join network requests or
registering network requests
Blinks Twice→Static On
Succeed to join/register to network
Blinks Once
Succeed to send uplinks
Blinks Twice
Fail to send uplinks
Blinks Twice
Receive downlinks