Y1-03-0229C 5Location selectionChoose a dry, clean surface to install the ARX-50, giving consideration tothe importance of the location. The user must be able to see the visualalarm and hear the audible alarm.CAUTION: When using the included antenna, the ARX-50 must bemounted vertically and the antenna must not be within 0.5 m of a metalpanel or other metal objects.Ship’s power requirementsThe ARX-50 accepts ship’s power supply in the range of +10.5 to +28 VDC. A two-wire connection (ground negative) is required that is capable ofsupplying 120 mA average and up to 400 mA under an alarm condition at+10.5 to +28 V DC.SECTION 3 - INSTALLATIONMount the bracketAfter selecting the location, hold the ARX-50 bracket in position and use asa template to mark where the screws will be located.CAUTION: When mounting to a wall, avoid mounting to metal.Pre-drill holes of a smaller diameter than the screws, if appropriate for thematerial that the bracket will be attached to.Holding the bracket in place, screw the four supplied screws through theopenings in the bracket to the mounting material, securing the screwstightly enough to allow for vibration, yet loose enough to avoid cracking thecase.Snap the ARX-50 into its bracket vertically, antenna skyward. Double-checkthat the ARX-50 is seated and secure by manually testing it for stability.Install the monopole antennaInstall the monopole antenna on the ARX-50 via the BNC connector. Theopen end of the antenna is attached to the connector by a clockwisemotion. The antenna snaps into place, locking it.CAUTION: Proper installation of the monopole antenna is required toseal the ARX-50. If any antenna other than the included monopole antennais used, the unit may not seal properly.