Nexus 21 A1557 Loop Contents, Zones Alarm Test, Extended Menu, Alert Trip Level

Models: A1557

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025 16 BGU 2

123 21 HEAT 4

END OF LOOP REPORT

5.9Loop Contents

At Step 4 within the Engineer’s Menu (see Section 5.3 above), select 6:LOOP CONTENTS.

Selecting option 6 causes the display to show a list of the devices currently configured without actually re-configuring the system. The format of the report is as shown under the CONFIGURE Loop option previously explained (see section 4.7 above).

5.10Zones

WARNING: We strongly recommend that no zone editing should be attempted without the use of the pc down-load facility due to the extensive range of options available. However, if direct panel programming is unavoidable, a separate document entitled “Programming the Nexus 1-8 Loop Analogue Addressable Control Panel Without a PC” is available.

5.11Alarm Test

The purpose of the Alarm Test facility is for audibility testing.

At Step 4 within the Engineer’s Menu (see Section 5.3 above), select 8:ALARM TEST and follow on-screen instructions.

In this condition the control panel will automatically sound the panel and loop alarms and the internal panel buzzer for 10 seconds every 15 seconds. This will continue until key 2 is pressed or for a maximum of 15 minutes whichever occurs first.

All auxiliary outputs are disabled.

5.12Device Test (Also known as the One Man Test Mode)

At Step 4 within the Engineer’s Menu (see Section 5.3 above), select 9:DEVICE TEST.

In this condition sensors may be triggered manually. Device operation illuminates the device and LED pulses the fire LED on the panel and sounds the internal buzzer. No sounder operation, System automatically resets after 25 seconds ready for the next device test. All other outputs are disabled in this mode.

5.13Extended Menu

At Step 4 within the Engineer’s Menu (see Section 5.3 above), select 0:EXTENDED MENU.

For options available within this extended menu, see section 5.2.1 above. Use * to scroll through options.

5.14Alert Trip Level

Document Ref: Nex8inst.doc/Rev0 09.07.00

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Nexus 21 A1557 technical specifications Loop Contents, Zones Alarm Test, Extended Menu, Alert Trip Level