Output indication: relay output with LED indicators,easy to see working status of the relay;. DC 12V 4 Channel RS232 Relay Board PC USB UART DB9 Interface Relay Module. 2 in 1 DC5V 12V 24V 8CH USB Serial Port Relay Module UART RS232 TTL Switch Board.
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Communication protocol: UART protocol communication, baud rate 9600kpbs, 8 data bits, one stop bit, no parity. Two-way data transmission. 1x4 Channel RS232 Relay Board. DC 5V 12V 1 Channel TYPE-C USB Relay Board RS232(TTL) PC UART Serial Port Switch.
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The communication interface supports RS232 DB9 serial port;. 1 RS232 relay module. Working current: Standby 12MA, 1 relay lead 40MA, 2 relay lead 67MA, 3. Support self-locking mode (reverse state of relay, if relay NO and COM are closed, send this command to disconnect NO and COM, and vice versa);.
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DC 5V 2-channelRS232 DB9 R elay. DC 12V 2-channelRS232 DB9 R elay. DC 12V 4-channelRS232 DB9 R elay. 2 RS232 DB9 female interface. DC12V 16-channelRS232 DB9 R elay. Each relay has an LED indicator and LCD display for relay absorption.
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KMtronic RS232 8 Channel Relay Board. KMtronic LTD. - Relay outputs can be used to turn ON/OFF lights, motors and other devices. - Each relay has an LED to indicate when it is operated. EIGHT channel commands.
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1 x 2 Channel RS232 DB9 Serial Relay. Channel:2-channel relay;there are 2 expansion IN ports,low level output. Also note that monitor settings may vary from computer to computer and may distort actual colors.
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Standby 14MA, 1 relay 44MA, 2 relay 69MA, 3 relay 95MA, 4 relay 121MA, 5 relay 149MA, 6 relay 175MA, 7 relay 199MA, 8 relay 226MA, etc. CONNECT 64 DEVICES IN PARALLEL: In command mode, up to 64 devices can be connected in parallel, versatile and multifunction.
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