SID Global Sdn Bhd UR-001 Manual De Usuario
1-Port and 4-Port UHF RFID Reader User Manual
UHF RFID User Manual
4
2. Ports Illustration
2.1.1 GPIO Port
PIN ID
Function
Equivalent
Circuit
Instructions
PIN1
COM
ƹcommon port of lock relay
PIN2
NO/NC
ƹnormally open of relay
ƹnormally close of relay
PIN3
GPIO INPUT +
ƹVoltage between PIN 3,4 <=12V
ƹHeteropolarity
ƹResponse time<= 150uS
PIN4
GPIO INPUT -