User manual GAI-TRONICS ICS HAZARDOUS AREA PAGE-PARTY STATION

[. . . ] Pub. : 42004-723L2C GAI-TRONICS ® CORPORATION A HUBBELL COMPANY Industrial Communications System Hazardous Area Page/Party® Station TABLE OF CONTENTS General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Important Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] manuals\42004-723l2c. doc 11/10 ICS Hazardous Area Page/Party Station ® Pub. 42004-723L2C Page: 15 of 28 VLC General The 69553 Volume Level Control (VLC) PCBA adds the capability of remotely controlling the local speaker volume level. When VLC is activated, a remote device transmits a 50 kHz signal over the page line. The station detects the 50 kHz signal and switches to an alternate speaker volume setting. VLC and SmartSeries options cannot be used in the same station. Features · · · · · Provides an "alternate" speaker volume setting that is activated by receiving a 50 kHz signal on the page line. Allows office or crew quarters speakers to be muted until a high priority message or alarm is broadcast. Enables outdoor speaker volume to be reduced at night. Prevents local handset paging during emergency conditions. Adds the ability to provide a relay output (requires RTU option) Figure 10. 69553 Series VLC PCBA f:\standard ioms - current release\42004 instr. manuals\42004-723l2c. doc 11/10 ICS Hazardous Area Page/Party Station Installation and Adjustments Opening the Station ® Pub. 42004-723L2C Page: 16 of 28 Before performing any of the following settings and adjustments, remove all power from the station. To reduce the risk of hazardous atmospheres, disconnect the equipment from the supply circuit before making any adjustments to the amplifier's handset level. Remove all cover bolts from the enclosure. Swing the front door open to access the internal PCBAs. Audio Alignment WARNING WARNING To set the normal speaker output level, set DIP switch SW2-1 to the "off" position. Set SW2-2 to the "on" position to enable a reference test tone. Adjust R91 on the Main PCBA to the desired audio level. To mute the audio, turn R91 fully counterclockwise. NOTE: If LED2 on the VLC PCBA is on, indicating the system VLC tone is present, this adjustment cannot be made. To set the VLC controlled speaker output level, set SW2-1 to the "on" position. Set SW2-2 to the "on" position to enable a reference test tone. Adjust R12 on the VLC PCBA to the desired audio level. [. . . ] 20 kilohms, or 15 kilohms + 5. 1 kilohms Cable resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 ohms maximum loop resistance Contact closure resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 kilohm maximum Open fault detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >65 kilohms Short fault detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]