The RA0003 module is a 1 to 4 UHF antenna multiplexer that allows to expand read points management of CAEN RFID easy2read product line. Typical usages of the device are the following: Extension of number of read points of single antenna readers (i.e. QuarkUp R1270C or Quark R1230CB) for low/medium range portal applications, access control and all others low cost installations requiring up to 4 antenna management. Extension of number of read points of multiantenna readers (i.e. Proton R4320P or Ion R4301P) for smart shelves installations, manufacturing lines and all others applications requiring a large number of antennas to be connected. RA0003 has SMA RF connectors, is able to manage up to 2W RF power and can be used in the whole range of UHF RFID worldwide band. The module has a extended supply voltage range (9Vdc – 36Vdc) and TTL level address signal. Five leds provide the user with information about module operation.