5V 2 csatornás RS232 DB9 soros vezérlő relé kapcsoló kártya SCM PC relék

5V 2 Channel RS232 DB9 Serial Control Relay Switch Board SCM PC Relays
5V 2 Channel RS232 Serial Control Relay Switch Board SCM PC RelaysFeatures:
Power requirements: DC4.5V - 5V, with inside positive, outside negative; or DC9-12V, First pin connectes to VDD, second pin connected to GND.
Each channel is set from 1 to 255 seconds delay independently
Simple to operate, most serial instruction are single byte instruction
Onboard 2 relay (which can be accessed extended 2-way relay module)
With absorption diode circuit
Each relay has a LED indicator, LCD lights relay absorption
With 1-channel power indicator
With capacitor filter circuit, with improved stability
Support for 5V or 9-12V input voltage
Interface:J5: using 5V power supply input
J6: using 9 ~ 12V power input, No.1 pin connects VCC, No.2 connects GND
J3 ~ J4 blue terminal: connect user load, it can be used 220V AC, or less than 30V DC device, the device current can not exceed the relay standard load .
Each relay has a normally open contact, a normally closed contact and a common contact. When relay absorps, the common contact and normally open contact conduct; when the relay releases, public contact and normally closed contact conduct.
Package Include: 1 x 5V 2 Channel RS232 Serial Control Relay Switc
201774967980 - ali110 (281)