Nexus 21 A1557 technical specifications Status Disabled/Enabled, ADR VAL Type STS CMD

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Selecting this option provides all the interrogation and control functions. All output functions are disabled and only the chosen device is being polled. This allows sensor devices to be put into the test mode without alarms, etc. being raised and allows observation of the rising analogue value.

D E V I C E

1D I S P L A Y

2D I S P L A Y

S T A T U S

( D I S A B L E D ) ( E N A B L E D )

3 P R I N T D E V / S S T A T U S

Selection of this option causes the control panel to output status information for all connected devices to its printer (if fitted).

Selecting this option enables specified

devices to be interrogated and for commands to be sent to the devices. When the self test mode is entered in this condition, the device under test should eventually enter an alarm condition. When this occurs the control panel will react as if a genuine alarm condition had been detected. The system will exit the engineer’s test mode and will need to be silenced and reset in the normal manner.

5.8.1Status Disabled/Enabled

Selecting Status options 1 or 2 will allow the engineer to enter the loop and device numbers. The display then shows the following:

ADR VAL TYPE STS CMD

10023 ION 000 000 ZONE 12 CMD BITS=123 4)PREV 5)NEXT #)END

The typical display example shown above is interpreted as follows:

The device address (ADR) is 100

The analogue value (VAL) is 23

The device type (TYPE) is ionisation smoke (ION)

The input status (STS) is 000

The control panel command status (CMD) is 000

The allocated zone for the device is 12

Key 4 allows the user to move to the previous device. The above example will be decreased to address 99.

Key 5 allows the user to advance the address of the device being interrogated. The above example will be advanced to address 101.

Key # to escape.

The device TYPES which may be indicated are as follows:

 

SOU

-

Sounder circuit controller

- Device type code reference no. 1

O/S

-

Input/Output device

- Device type code reference no. 2

ION

-

Ionisation smoke sensor

- Device type code reference no. 3

MON

-

Monitor (zone monitor, control monitor) - Device type code reference no. 4

OPT

-

Optical smoke sensor

- Device type code reference no. 5

HEAT

-

Heat sensor

- Device type code reference no. 6

BGU

-

Call point or call point monitor

- Device type code reference no. 7

Document Ref: Nex8inst.doc/Rev0 09.07.00

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Contents Contents Exploded View and Mechanical Data/Text Identification User Controls & IndicationsDisplay Lithium Battery LBAR1Power Supply Illustration NC1Programmable Expansion Boards Ii A1536 8 Way Programmable Input/Output Alarm BoardLoop Card Expansion Motherboard A1535 8 Way Programmable Input/Output Relay BoardImportant Notes on Batteries Document Ref Nex8inst.doc/Rev0 Number Loops Access level 1278 Overview of Engineer’s Menu OptionsAccessing Engineer’s Menu Access level 8812Setting Time & Date IsolateDevice Status Configure LoopEdit Status Disabled/Enabled ADR VAL Type STS CMDStatus To Printer Extended Menu Loop ContentsZones Alarm Test Alert Trip LevelPanel Delay Fire Trip LevelProgramming the Number of Displays Repeaters Read MemoryClear Print Queue Print Cause and Effect Data Print Memory ContentsOptions Available at Access Level Checklist Commissioning IntroductionCommissioning Procedure An Overview of the Commissioning ProcedurePre-Commissioning Wiring Check Alarm CircuitsCommissioning Loops Cause & Effect Editing Cause & Effect TestingAuxiliary Circuits Final CommissioningTechnical Specifications Ii Other Relevant Documentation Iii Compatible Loop Devices and Panel Responses 1XX= LED = LED Is in fire Fault Data fault AV = 0 to Operation and is