A:Answer It will depend on what glasses came in the box? If you have the Optoma ZD302 DLP Link glasses they do not need the 3D emitter, as long as they have a 3D source, 3D content, a 3D rated HDMI cable, and the 3D settings are turned on in the projector and are set for DLP once it starts playing the glasses will pair up with the projector since the DLP technology is built into the unit.
However, if your using the other Optoma ZF2300 glasses then you will need the BC300 emitter to plug into the 3D sync port of the HD143X projector, ensure that the 3D is turned on and it is set to VESA and not DLP Link. Then just like the other possibility, the setup is the same and they will pair with the unit once content is being played.