The Model 2512 DC & IR Passing 2-way Splitter/Combiner is a bi-directional 2-way splitter/combiner that provides a 1 GHz bandwidth and is ideal for antenna and coaxial cable operations. The splitter/combiner can be used for two applications. It can be used to split a signal from a source or combine signals from multiple sources onto one coax run. Use a DC passing splitter whenever DC IR signals are present on the coax.