Description
Robust DataComm RS-485 3-Port Hub/Repeater With Screw Terminal Connection.
The rdc485hub allows connection of one RS-232 and two RS485 devices complete with full 4-port 2.5kv optical/galvanic isolation - including 3 isolated DC supplies. Each port is fully isolated (with floating ground) with reference to the other data ports and the power supply.
The rdc485hub can operate as a full 3-way hub. Any device can freely talk to the other two. Any data received on any port is echoed out the other two. Moving one internal jumper (J3) converts it to a Master/Slave configuration where any data received on port C ("Master") is echoed out both port A and B ("Slaves"). Data received on either port A or B is only echoed out port C ("Master").
The RS-485 ports can be field set for 2 or 4-wire operation, plus includes options for line bias and 120-ohm internal termination. 500-watt voltage transient suppressor diodes protect the rdc485hub from normal mode surges, while the full galvanic isolation protects the rdc485hub from common mode surges.
Isolation, industrial design, small size, DIN rail mount, user indication, and DC supply make the rdc485hub a very engineer-friendly device for your industrial data communication system.
