User manual ACR ELECTRONICS ARX-50

[. . . ] CAUTION: When using the included antenna, the ARX-50 must be mounted vertically and the antenna must not be within 0. 5 m of a metal panel or other metal objects. Ship's power requirements The ARX-50 accepts ship's power supply in the range of +10. 5 to +28 V DC. A two-wire connection (ground negative) is required that is capable of supplying 120 mA average and up to 400 mA under an alarm condition at +10. 5 to +28 V DC. SECTION 3 - INSTALLATION Mount the bracket After selecting the location, hold the ARX-50 bracket in position and use as a template to mark where the screws will be located. Pre-drill holes of a smaller diameter than the screws, if appropriate for the material that the bracket will be attached to. [. . . ] If the beacon is activated in a COB situation, the ARX-50 receiver will detect the 121. 5 MHz signal. Y1-03-0229C 6 The ARX-50 has three large, circular push buttons and seven LEDs that indicate settings. The LED indicators are either red or green to signify the system mode. Green LEDs signify that the system is in a normal state and red LEDs signify that the system is in an atypical state. Turn on the ARX-50 The red OFF LED will be illuminated while the system is turned off, yet is still connected to a power supply. Set to default at the factory, the alarm mode is active on channel 121. 5 MHz. Some signal level indicators may flicker while the unit searches for a signal. Choose Alarm mode or Monitor mode Alarm mode The Alarm mode for the ARX-50 is the system's default mode. In this mode, the radio beacon signal detector circuitry is activated, i. e. , The system is ready to detect 121. 5 MHz signals. In Alarm mode, the speaker is silenced until a 121. 5 MHz beacon signal is detected, at which time a loud audible siren and a flashing bright red LED are activated. The ARX-50 detects an activated Mini BTM300 beacon, and other activated beacons that transmit 121. 5 MHz signals. The ARX-50 is designed to only detect an alarm on 121. 5 MHz signals that originate from an activated beacon. If there is a strong signal that is not from a beacon, the signal strength will still be displayed on the signal strength meter, but the ARX-50 will not alarm. Monitor High mode This mode is intended for advanced users to obtain more information about a received signal. NOTE: The ARX-50 reverts back to Alarm mode after 15 minutes in Monitor High mode. If there is not any signal on the 121. 5 MHz carrier, whether activated beacon or other source, static will be audible. Y1-03-0229C 7 Monitor Low mode This mode is identical to the Monitor High mode except that the speaker volume is lower. NOTE: The ARX-50 reverts back to Alarm mode after 15 minutes in Monitor High mode. Training mode Operation in Training mode is identical to the live radio beacon detection mode. In Training mode, the ARX-50 receives a special training frequency (typically 121. 65 MHz or 121. 775 MHz). This allows users to become familiar with the operation of the ARX-50 by using a special training beacon operating on the same frequency. NOTE: The ARX-50 reverts back to 121. 5 MHz after 1 hour in Training mode. [. . . ] To ensure that you have the most recent version of the Product Support Manual, please visit the ACR website at www. acrelectronics. com. Reproduction in whole or in part is permitted only with permission of ACR Electronics, Inc. Ongoing product improvements may change product specifications without notice. Trademarks or registered trademarks are the property of their respective owners. Y1-03-0229C 11 EC DECLARATION OF CONFORMITY ACR Electronics, Inc. [. . . ]