ONLY one-way communication - from input to 4 x output
Sending data to 4 RS485 ports at the same time - star coupling
1 x RS232 and 2 x RS485 (screw terminal) as input
Converts RS232 for RS485 2-wire 
Only one input can be active at a time
Can be connected to multiple serial splitter boxes to max. 32 x RS485 outputs

Optoisoleret RS-485 repeater
2 vejs 3000 VDC isolation
ESD-beskyttelse til RS-485
Baud-hastighed 300 bit/s til 115.200 bit/s 
Understøtter effektindtag på +10 V DC til +30 V DC 
Driftstemperatur: -25° til +75°C
Til DIN skinne montering

Industrial RS422/RS485 Serial Converter/Repeater with 2 KV Isolation, MOXA TCC-120i

Boost serial signal to extend transmission distance
Boost RS422 or RS485 signal, or convert RS422 to RS485
2 KV optical isolation protection
15 KV serial ESD protection

Wall or DIN-rail mounting

Terminal block for easy wiring

Power input from terminal block
DIP switch setting for built-in terminator (120 ohms)

Opto-isolated RS422 / 485 repeater
3000VDC glavanic isolation
2-wire RS485 is half duplex (switching speech)
4-wire RS485 / RS422 a full duplex (both ways at the same time)
Automatic directional change and baud rate.