The module is used to connect devices with RS232 or RS485 serial to RS232 or RS485 communication channel. This system allows connecting several devices to one modem or interface converter.

    The RS485 interface used allows connecting up to 32 access controllers to one interface controller. Access controllers can be connected through FTP cable and the cable length must NOT exceed 1200 meters.

Key Features:
• 3-Wire connection by RS232;
• DB9 Female connector - pin2-RxD, pin3-TxD, pin5-GND;
• Automatic data direction control;
•  Serial Speed: from 300 up to 115200 kbps;
• Supply Voltage DC 7.5V-18V;
• Reverse-voltage protection;
• LED indication for PWR supply voltage;
• LED indication for RX, TX receiving and transmission;
• PCB Size: 44 х 25 mm.