The 172-94X Xtra Link2 Xpansion kits are used along with one standard 172-94 when installing Xtra Links in more than one room. This avoids duplication of couplers, emitters and coax jumper cables.
Specifications
Features
The 172-94X package includes:
1 - 291-00 Infrared Receiver.1 - INJ94 Injector.1 - DC Power Supply.1 - Coax jumper cables with RF connectors (U.S.A. version only).