LT-2020 MR-2944 Installation and Operation Manual Rev.1 - Secutron

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MR-2944 Installation and Operator’s ManualMR-2622 Jumper SettingsThe MR-2622 is an 8 zone LED strip and can be configured to display one of zone groups 1-8, 9-16 or 17-24. The jumper for setting the displayed zone group is located just below the ribbon cableconnector (see Figure 9 - MR-2622 8 Zone LED Annunciator on page 8).The unit is shipped withthe default setting to display zone group 1 to 8. To change the zone group, cut the trace on thebottom of the board that is shorting the zone group 1-8 pins and move the jumper to the requiredzone group.Ribbon CableJumper HolesZone group 17-24Zone group 9-16Zone group 1-8Trace Setting(On back of board)Zone group 1-8DefaultComponentSideFigure 9 - MR-2622 8 ZoneLED AnnunciatorFigure 10 - MR-2915 LED Pinouts8
MR-2944 Installation and Operator’s Manual3.0 Operation3.1 LEDsThere are 192 LED zones available on the Annunciator, each zone consisting of Alarm (red),Supervisory (amber) and Trouble (yellow) LEDs. The LEDs will flash if a new condition is received.If the buzzer is sounding, press Acknowledge to silence the buzzer. Press Acknowledge (again) tolatch the LEDs. Once the condition is restored, the LED can be turned off by pressing Reset. Ifglobal commands are enabled, these operator keys will be broadcast to the network, causing allunits to respond to the operator keys. An asterisk will appear at the end of the LCD display lineshowing the current time if any of the LEDs can be reset. If the Alarm List is being displayed, thecurrent time will not be displayed.If the MR-2944 has a memory or configuration error, the buzzer will sound every 2 seconds. Thisalso occurs while loading a database.If LEDs are programmed, the table below shows the meaning for each LED when flashing. ThePower On LED flashes when the annunciator first starts operating and stays steady after theAcknowledge key is pressed.N defines the location of the common indicator zones.Table 1: LED’s and their MeaningsLED Meaning LED MeaningZone 1 alarm Acknowledge available Zone n+2 alarm 2nd Stage InhibitavailableZone 1 supervisory Reset available (green) Zone n+2 supervisory Manual RestartavailableZone n trouble Reset available (yellow) Zone n+2 trouble future useZone n+1 alarm Signal Silence active Zone n+3 alarm future useZone n+1 supervisory Signal Silence available Zone n+3 supervisory future useZone n+1 trouble 2nd Stage Inhibit active Zone n+3 trouble Power OnIf a common LED is programmed, it will show the sum of all the Zone LEDs that are on. Thecommon LED will also indicate troubles that are local to the Annunciator only. The Hot LEDs haveno effect on the common LED.If the MR-2902-ANN-HTLD annunciator strip is used, zones 21 thru 24 on the MR-2902-ANN-HTLD are reserved for the control panel common indicators. From above Table zone assignmentsmust start with N = 21 so that the correct common indicator LED colors will be displayed.Lamp Test flashes the LEDs in sequence. Pressing Lamp Test repeatedly will cycle through: alarmLEDs, supervisory LEDs, trouble LEDs, and Lamp Test off. The test will automatically end if anynew condition is received, or after 5 minutes. The lamp test cannot be performed if AC power is off.9
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LT-2020 MR-2944 Installation and Operation Manual Rev.1 - Secutron

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