SELR2BDG BUS CXN flush-mounted transponder selector for cards, key fobs and TAG (Manchester protocol) with blue backlighting. Gray color, RAL7024. 806SL-0310 The CAME CXN BUS is a connection system with two non-polarized wires that allows you to easily connect all the devices developed with this technology. The new keypad and transponder selectors, available in the flush-mounted and outdoor version, can be connected to the new control panels that provide for CXN BUS management without using the R700 and R800 accessory. In switchboards where BUS technology is not developed, they are connected in the traditional way using the 001R700 accessory (for transponders) and 001R800 and 806SL-0230 (for keypads) as usual. The new selectors, besides having a thinner thickness, are completely gray and characterized by a blue border. All equipped with blue backlighting, connected in BUS CXN mode, they provide green luminous feedback in case of correct code and red in case of wrong code. The introduction of the new selectors favors the phase - out of the current keyboard selectors and transponders.