eletechsup 1 Channel DC 12V PC COM DB9 RS232 Serial Port Delay Relay UART Switch Module for LED Motor PLC 3D Printer (1)

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Product Name: 1 Channel DC 12V PC COM DB9 RS232 Serial Port Delay Relay UART Switch Module for LED Motor PLC 3d Printer

Package inlcuded:

1 pcs 1 channel DC 12V DB9 RS232&TTL232 Relay Board

Description:

1: Working voltage: 12V

2: (DC12V)Standby current (all relays closed) 17MA, relay open 48MA,

3 Two serial ports: RS232 DB9 interface, TTL 232 interface

4 ''Open'' ''Close'' ''Momentary'' ''Self-locking'' ''Interlock'' ''Delay''(Only AT command) 6 Commands

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