FS II Digital wireless base station 5BP: FreeSpeak II Digital license-free wireless base station for 5 BPs. Supports up to 5 Beltpacks and 10 antennas. (Two antennas can connect to the base station directly over CAT5 or up to 10 antennas can be connected by using two FSII-SPL splitters). The base station has connections for four party-lines and four 4-wires plus a dedicated SA output and dedicated program audio input. XLR-4 pin male headset connection. To upgrade to a full 25 beltpack capability requires a license. (Order: FSII-BASE-II-25BP-LICENSE). To use the fiber connections to the FSII-SPL Splitter please choose suitable SFP transceivers from either HLI-MMFO or HLI-SMFO.Please note: SFP modules can vary in electrical capabilities despite being mechanically compatible. Clear-Com can only support Clear-Com supplied SFP transceivers which have been tested with Clear-Com products.