R223C16 12V 16 Channel RS232 Relay Module

RC232 16 channel relay development board to easily control the relay via RS232 Supply voltage is taken through the terminal on the PCB. Each relay can operate with 250V AC/10A or 30V DC 10A.

Usage Areas

Remote control, remote measurement system

Wireless meter

Smart Home, Home Automation

Access control

ID system

Data collection

IT home appliance

Baby monitoring system

LED Motorized PLC

PC Remote Control

Relay Output:

NC: The normally closed end shorts to COM before the relay activates and cut off after activation.

COM: Common terminal.

NO: Normally open end, relay is closed before activation and then short circuits COM .

Technical Specifications

Operating voltage: DC 12V
Standby current (all relays closed) 18MA, 1 relay open 46MA, 2 relays open 73MA, 3 relays open 100MA,4 relays open 126MA,5 relays open 153MA,6 relays open 179MA, 7 relays open 204MA,8 relays open 230MA…
'Open'' ''Close'' ''Momentary'' ''Self-locking'' ''Latching'' ''Delay''(AT Only command) ''All Relays On'' ''All Relays Close'' - 8 Commands
Two types of commands: AT command and 8 byte command, two commands are automatically recognized, there is no need to switch.
The maximum delay under the 'Delay' command is 9999 seconds (AT command only)
Output indicator: Relay output with LED indicator, easy to see the working status of the relay
Baud rate 9600kbps, 8 data bits, one stop bit, no parity.
Size: 172 * 65 * 19mm

DC 12V control circuit

The connection diagram is below. "LOAD" can be LED lights, fans, motors and other DC 12V equipment.

R223C16 12V 16 Channel RS232 Relay Module

DC 1-110V OR AC 85-265V control circuit

The connection diagram is below. "LOAD" can be LED lights, fans, motors and other DC AC equipment.