Serial Expansion Device

▪ One way RS232 serial port and one way network port expand into four-way RS232/RS485 serial port input, output;

▪ Four-way RS232/RS485 serial port data input, packaged to one way RS232 or network port output, four-way extended serial port can return data at the same time;

▪ Output data can be designated to any of the four-way output;

▪ Can set the baud rate and the calibration method of each expansion port;

▪ Expanded original central control RS232 port can cascade output, does not hinder data usage of the original central control RS232 port;

▪ ID addresses can be set through the network;

▪ Through the rear panel indicator, can clearly observe the operation of the port;

▪ Comply with Keatoo 2+1=1U standard


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Input power supply

12V DC power supply;

Number of control input channels

1-way RS232, 1-way RJ45 network port;

Number of control output channels

1xcascade connection RS232 channel,

4x extension RS232/RS485 channels;

IP Port

 one-way RJ45 network port;

Use control interface

one power LED indicator,

1 pair of main port input and output status number

indicators, 4 pairs of extension RS232 channel input

and output status LED indicators;

Usage environment

temperature range -5℃―40

Humidity range 0―90%RH;


44mmx 183mmx 160mm (height x width x depth) 1/2U;


Net weight 0.5kg;

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