The WA504 is a universal mounting bracket used to connect two Shure products with different chassis configurations. It is a C-channel bracket with flanges that accomodates a variety of Shure mixers, transmitters and receivers.
To connect two Shure devices using the WA504, proceed as follows:
Position the bracket so it is flush to the side of the device with the side-mount chassis and install the supplied mounting screws, as in Step 1 below.
Connect the device with the top mount chassis to the bracket flanges using the supplied mounting screws, being sure both devices are facing the same direction, as in Step 2 below.