3. Terminals
• +12V: 12VDC power output
.• LK-(GND): power ground.
• LK+(COM): electronical load activation relay contact common
.• NO.: electronical load activation relay normally open contact
• EB+: Exit button.
• EB-: Exit button
• T/R-: USB-RS485 communication terminal negative
.• T/R+: USB-RS485 communication terminal positive
.• SET: DIP switches for system configurations.
• PA: program button A(refer to program section)
.• PB: program button B.(refer to program section)
.•Power (P-,P+): DC 18V
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