16Using a two-gang junction box• When the camera is installed using the two-gang junction box, mount the camera attachment(accessory) to the embedded box installed on the wall or ceiling as a first step.Note:• For wall mounting:Installation shall be performed in such a manner that "MTOP" of the camera attachment facesupward.• For ceiling mounting:The front side (model number indication face) of the camera shall be aligned in the direction ofthe arrow in "<FRONT" on the camera attachment.Using the mounting base• When installing the camera with the mounting base, attach the mounting base to the wall orceiling in the first place. (+ next page.)Mount the camera attachment (accessory) by using the screws supplied with mounting brack-et. (+ next page.)(Recommended tightening torque: 0.78 N·m {0.58 lbf·ft})Note:• When installing the camera on the wall or ceiling where cable holes are already provided, orwhen installing the camera with exposed wiring, the mount bracket shall be used.• The female screws for piping conform to ANSI NPSM (parallel pipe threads) 3/4 inches.The female screws for piping shall be removed with a hexagon wrench.• To connect conduit from the top, refer to page 27.46 mm {1-13/16 inches}83.5 mm {3-9/32 inches}[Mounting position on wall or ceiling]Camera attachment (accessory)Two-gang junction boxFRONTTOPFRONTTOP