Congratulations on purchasing your new DMX distributor. The unit has one input and 8 output. Absolutely electric isolation between input and output or between output and output. Two type of DMX connector(3pin & 5pin)for each individual channel, each DMX output features a independent Driver. DATA+ & DATA- indicator. There is a DMX switch which is incorporated allowing to isolate From the malfunction caused by DMX input on the case. We strongly recommend that you take Time to read this manual fully before you attempt to use the DMX distributor.