The DC switch is controlled by RS232 single line (RTS or DTR) while RXD and TXD can be used for communication.

• Small size: 1"x2"x3.1"
• Voltage range standard for telecom industry -35V...-75V.
• Switching current - up to 3A in steady state, in-rush current up to 30A.
• No external power supply is required.
• Reverse polarity protection.
• Cable strain releif for control cable and for power cable