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1. Relay Contacts No C NC 24V DC max 1Amp max External Lamp Drive Open Collector 12VDC max 500mA max External Speaker Drive 7W 40 minimum Power Requirements 10 to 35V dc 1 Amp Power Connector 2 1mm DC socket centre positive Dimensions W x D x H 210 x 210 x 70 Weight SAM User Manual 2 35kG without antenna Page 15 Of 152. Nexus Technology P L 2010 S Manuals SAM SAM_ Instruction Manual_01_141010 doc Instruction Manual Nexus Technologies Defined Area Early Warning System Remote Console Model SAM Nexus Technology P L 2010 S Manuals SAM SAM_Instruction Manual_01_141010 doc Document Status Client Nexus Status Controlled external release Authorised by DJA Comment Closure Date 181010 Revision History Version Date Changes 1 181010 Initial Release 2 3 4 Nexus Technology P L 2010 S Manuals SAM SAM_ Instruction Manual_01_141010 doc Table of Contents 1 INTRODUCING THE SAM E 4 1 1 Brief OVery AU dee EENS 4 1 2 The Key Concepts A E EE T E 5 1 2 1 Updatinig e lg 5 1 2 2 The information displayer AA 5 1 2 3 EE EN Le EE 6 1 2 4 Mee DEE ose eG ae ete hc caus EE 6 1 2 5 OR Gell EE H 1 2 6 SAM External CONMECONS season ee eege Uiaddaadiaxe EES Zen tends Age Zeene bared H 2 JINSTALLATION GUIDE eegegegeeggegegegggegegeeggegeiegggegegeegd eege eege eEee E 8 3 USING THE SAM viant saana raada taaa SEEA SEENEN AANA Aaa AENA aAA AAE AAA ATEREA 8 3 1 User Mode iru 8 3 2 Installer ModE sanon A Ee 9 3 3 Configuration Ak LTE 11 3 4 Storage of Settings eege ee ee etna ds 12 3 5 HOSS O8 SIGMA a Geier e Ee EES 12 APPENDIX GR eegeeseuegeheseeegekeseEeEeKEReKEECKSEeEERCEEReKEECKEEeEEECKERSKEEEEEEeEEECEERSKEEEEEReE 13 APPENDIX B EXTERNAL GIOGNALS use 14 APPENDIX C SPECIFICATIONS sccice
3. SAM User Manual Page 10 Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_Instruction_ Manual_01_141010 doc 3 3 Configuration Mode The Configuration Mode is used to set up the more basic operational parameters of the receiver The installer should only ever have to use the configuration functions once usually at the initial setup stage Configuration Mode features the following menu structure Set Brightness Audio Timer Set FMin AM 1 8 Step AM kHz Set FMax AM Step AM kHz Set Contrast 1 8 Set Step FM 1 10x 10kHz Preset Scan Y N Set Mute Set Step AM 1 9x 1kHz Set Pri Zone Set FMin FM Null 2 Step FM MHz Set Sec Zone Set FMax FM Step FM MHz Exit Config Y N Of the available functions only Set Brightness Set Contrast and Set Pri Zone should be used Accessing any of the other functions may cause unpredictable results and possible erroneous operation of the SAM Unless otherwise described exiting one function will result in the next function down the tree being accessed For example once the Set Brightness function has been used to adjust the display brightness exiting this function will result in the installer being prompted to access the Set Contrast function Set Brightness allows the display brightness to be altered to suit the installation Rotating the control knob cew to a setting of 1 will result in the backlight being almost off rotating the control knob
4. signals or signal groups is contained in the Specifications Appendix but it is worth discussing the relay contact function a bit further here There are two sets of relay contacts separately energized Both sets have the Common Normally Open and Normally Closed contacts bought out to their respective connectors Relay A is driven whenever the threat level is above the Low Moderate level Relay B is driven whenever the threat level is at the Catastrophic level There is no prescribed or recommended implementation for these relays as the variety of end uses is virtually limitless A future enhancement will be to provide customizable trigger thresholds for these functions SAM User Manual Page 14 Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_Instruction_ Manual_01_141010 doc Appendix C Specifications Parameter Specification Control Bidirectional Rotary Control Push to Select Text Display 16 characters x 1 line LCD backlit blue Text Display Controls Adjustable Brightness and Contrast Status Display 6 x high brightness LEDs Number of Presets 20 Tuning Range FM Programmable 88 00 to 108 00 MHz default Tuning Step Size FM Programmable 10 to 100KHz Antenna Input F Type Socket Audio Output Single mono RCA Socket RS232 Serial Data DB9 Female wired DCE Baud Rate 9600 Baud Format 8 N 1 Data format RS232 Binary
5. by pressing the selection knob 4 times within 1 Second The display will show the message Exit Installer Y if this process has been performed correctly Rotate the control knob ccw and press it to enter Installer Mode In Installer and Configuration Modes a 30 second inactivity timer is running and will result in operation being returned to User Mode if there is no front panel control actions within this time Note that the SAM continues to receive and decode any DAEW messages whilst in this mode Installer Mode features the following menu structure Set Volume Select Frequency Select Preset Select Config Exit Installer Using the Installer Mode functions as described allows the installer to quickly set up the SAM at the user s premises adjust the volume and set up the station presets SAM User Manual Page 9 Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_Instruction_ Manual_01_141010 doc Set Volume is used to adjust the receiver volume to a level suitable for the user t should be set so that it demands attention in an emergency situation that may have a high background noise level Select Frequency sets the operating frequency of the radio station carrying the DAEW signal Rotate the control knob ccw to decrease the frequency or cw to increase the frequency Press the control knob when the selection is complete When a selection has been made by pressing the control knob the next function in the tree Se
6. cccscccencescccencescecescescetencuscecescuscccescuscedeseuss 15 SAM User Manual Page 3 Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_ Instruction Manual_01_141010 doc 1 Introducing the SAM It is important that the user read and understand this section so that they are aware of what the system can and cannot do for them In times of emergency the DAEW can provide them with critical information about an impending threat but what actions they should take in such circumstances are their choice entirely The user must have a prepared plan of action whether to stay and defend or evacuate in a safe and timely manner The DAEW must also not be considered to be one hundred percent reliable No system can ever be The user must understand that the DAEW information like any other source of information can be obsolete inaccurate or at worst incorrect The DAEW is simply another method of keeping the user informed and should only be used to supplement not replace existing Internet free to air or subscription media telephone SMS audible warning system or other form of alert messaging 1 1 Brief Overview The Defined Area Early Warning DAEW system is aimed at assisting people living in bushfire prone areas to better protect themselves and make informed and timely decisions about evacuating or staying with property in the event of fire The DAEW system has been designed to provide a means of delivering a geographically specific th
7. cw to a setting of 8 will result in the backlight being driven to maximum brightness Press the control knob to make the selection and return to the configuration menu SAM User Manual Page 11 Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_ Instruction Manual_01_141010 doc Set Contrast is used to adjust the contrast of the display characters with respect to the background This also has an effect on the viewing angle Rotate the control knob ccw towards setting of 1 or cw towards a setting of 8 to achieve maximum contrast at the normal viewing angle Press the control knob to make the selection and return to the configuration menu Set Pri Zone is used to select the cell code that the SAM is zoned for At this stage of development the range of cells is 0 through 15 Rotate the control knob ccw towards the minimum setting of 0 or cw towards a maximum setting of 15 Press the control knob to make the selection and return to the configuration menu 3 4 Storage of Settings Non volatile FLASH memory is used to store all operating parameters This includes all items that are able to be setup in the Installer Menu as well as all items in the Configuration Menu It is important to note however that backup to permanent memory does not happen immediately after each and every change of any parameter it only takes place after a period of 20 seconds of no activity after a change has taken place Thus it is important not to power down the unit
8. ecure it with the screws removed earlier Connect the plug pack to the mains supply plug the DC lead into the SAM and the antenna lead to the antenna socket Connect serial external relay external lamp and external siren as required Set the cell identification code to the assigned cell number Set the tuner to the frequency of the station broadcasting the DAEW information and store this to preset 1 Set FM channel volume to the level requested by the user Verify that the SAM is decoding the DAEW signal and the threat status is flashing green and the LCD is displaying Low Moderate The SAM is now ready for use 3 Using the SAM 3 1 User Mode The SAM has no real use for the end user except when an emergency exists The user can check that the SAM is operational by pressing the control knob in which will turn on the audio amplifier and send the received audio signal to the internal and external if fitted loudspeaker Future user accessible enhancements will include SAM User Manual Page 8 Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_Instruction_ Manual_01_141010 doc e Extensive self test diagnostic routines that will allow the user to verify that the SAM is operating as it should e The ability to monitor any other cell to determine the threat in that cell The primary use of this function is to evaluate the best escape route in an emergency 3 2 Installer Mode Installer mode is accessed from User Mode
9. for the cell it is programmed for The amount of information that the RDS subsystem can transmit is not without bounds There is not a lot of bandwidth available so the DAEW information is quite succinct to keep update times or latency as low as possible Realistically it can take a couple of minutes to update all cells covered by a particular FM radio station if all cells are at the same threat level Such a case isn t a problem when the threat level is the normal non critical one but becomes more important when the threat is not trivial Currently all cells are given equal priority but in future a system with dynamic priority allocation would update cells at higher threat levels more frequently than those at lower levels At installation time the SAM will be assigned a cell identification code and this is stored in permanent memory The SAM must remain in the cell it has been programmed for or else the information it delivers may not be accurate Moving the SAM or changing its cell identification could render the device useless or worse to give information that is not accurate for where the receiver is physically located The final consideration is that the DAEW can only deliver the information that is fed to it If this information is inaccurate or stale then the DAEW cannot improve it 1 2 2 The information displayed The SAM delivers the threat information for the cell it resides in the following ways e In plain text on the LCD d
10. gh the Threat Status LED Lamps are clear when not lit they do light up in the appropriate FDR colours The lamps also flash to attract attention A Catastrophic FDR is signified by the upper two lamps Amber and Red flashing alternately The loudspeaker will be turned on when the threat level is above Low Moderate so that any accompanying voice announcements from the FM radio station broadcasting the DAEW signal can be heard 1 2 6 SAM External Connections The SAM provides connections for antenna power serial data external siren and display and analog audio output All connectors are at the base of the unit The following picture shows the layout of the connectors SAM User Manual Page 7 Of 15 Nexus Technology P L 2010 Power Input S Manuals SAM SAM_Instruction Manual_01_141010 doc External Status Lamp Connections Mono Audio Output External Relay Connections External Loud Speaker or Siren RS232 Serial Data 2 Installation Guide For the installer familiar with the basic operation of the SAM menu system the following steps are required to configure the unit for use Remove 8 countersunk M3 screws top and bottom and remove the rear section of the case Connect the battery flying lead to the connector on the back of the PCB paying attention that the correct polarity has been observed Set the volume and tone signalling internal dipswitch options as requested by the user Refit the rear case section and s
11. immediately after making changes to the SAM installer or configuration settings 3 5 Loss of Signal Should the SAM not be able to decode a DAEW message with its cell code within a preset time period it will show No Cell Message on the display If the SAM experiences loss of valid DAEW signal when not at the Low moderate level it will presume the worst and autonomously escalate the threat level with successively shorter intervals Ends SAM User Manual Page 12 Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_ Instruction Manual_01_141010 doc Appendix A RDS The SAM decodes the Group 9A codes of RDS Blocks C and D This is the Emergency Warning System EWS allocation of the RDS standard If you have a receiver capable of displaying RDS messages and it displays text other than the normal data transmitted by the station during the DAEW operation please advise the station SAM User Manual Page 13 Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_ Instruction Manual_01_141010 doc Appendix B External Signals The SAM makes available some signals for external use These signals are RS232 raw RDS DAEW data for external processing Line level audio for smart home emergency annunciation Open collector drive for an external threat display Speaker drive out for an external siren or speaker Uncommitted relay contacts for an emergency sprinkler system or other similar device The specifications for each of these
12. is only a prototype It has been produced to demonstrate the core concepts of the DAEW system It may be obvious that large amounts of money have not been spent on making it as sleek and stylish as an iPhone indeed R amp D has been solely devoted to making a robust and simple product SAM User Manual Page A Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_ Instruction Manual_01_141010 doc that fulfils the needs that drove the design requirements in the first place There is much more that could be done within the existing design scope with just software changes and it is this functionality that is under examination in this trial There are several menu items that have no meaning do not function or make no difference in operation These are stubs of functions that are either redundant still under development or have yet to be implemented Please approach any aberrant operation of these items with a little bit of patience and understanding 1 2 The Key Concepts 1 2 1 Updating your cell The DAEW transmits threat information to all cells in the coverage area al the time As the information is broadcast by a free to air FM station there is no limit on the number of receivers and no possibility of extra traffic overloading the system in emergency All that is required is that the SAM receiver has good signal strength from the transmitter site The SAM listens to all the DAEW messages transmitted but only displays the threat codes
13. isplay e On the colour coded LED threat tree e As audible tones from the loudspeaker e Via optional external threat display and or siren The nomenclature and colours are harmonised with the current Fire Danger Rating FDR as reproduced in the following table SAM User Manual Page 5 Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_Instruction_ Manual_01_141010 doc There is also a separate Total Fire Ban Indicator down the bottom of the SAM front panel Currently this will light whenever the threat is above the Low Moderate level but in future it is envisaged that this will be enabled by a unique signal delivered by the DAEW and may give advance warning of a TFB day to follow at a time when the threat level may still be low Fire Danger Rating Flame Time to Impact Category Fire Ht Rate lt otrs 2 6Hrs 6 24Hrs 24 Hrs Emergency Warning SEWS Watch and Act Variable 1 2 3 Installation 1 2 3 1 Signal The SAM receiver must be installed where it has a totally reliable and strong signal from the FM broadcaster carrying the DAEW service The SAM comes with a 70cm whip antenna mounted directly to the case This is suitable only for protected or inside use If an external antenna is required or greater gain needed then an external directional FM or TV antenna may be needed 1 2 3 2 Location The SAM receiver is not weather proof It must be located under cover of direct weather It mus
14. lect Preset is made active Note that the frequency step sizes and upper and lower frequency limits for FM are individually configurable as separate items in the Configuration Menu Select Preset brings up a sub menu that allows a preset to either be recalled for editing or to save the current configuration to The Select Preset Menu structure is as follows Preset Recall Preset Save Selecting the Preset Recall function allows any of the 20 saved presets for the SAM to be recalled overwriting the current configuration when the control knob is pressed Turning the control knob ccw will move the selection down towards preset 1 turning the control knob cw will move the selection up towards preset 20 The Preset Recall function may be aborted by rotating the control knob cw from preset 20 to access the exit option In a similar fashion selecting the Preset Save function allows the current configuration to be saved to any of the 20 presets when the control knob is pressed Turning the control knob ccw will move the selection down towards preset 1 turning the control knob cw will move the selection up towards preset 20 The Preset Save function may be aborted by rotating the control knob cw from preset 20 to access the exit option Exiting either of the above functions will result in control being passed back to the Set Volume function A future enhancement will be to provide a PIN to lock out installer mode to non qualified access
15. reat warning to individuals or groups within high risk areas Delivery areas are defined as cells on an arbitrary grid which may be as small as one kilometre The system also caters for delivering the same message to an area as big as a Total Fire Ban district or even the entire state This enables total fire ban information or district wide fire danger ratings to be efficiently broadcast The DAEW has been designed primarily as a fire warning system but there is no reason why the system cannot be used for other geographically specific threats such as flood or tsunami Messages consisting of a cell number and threat message codes are electronically sent to existing free to air FM radio stations for transmission The system uses the FM Radio Data Service RDS to deliver the threat message information These transmissions do not interfere with normal audio content The specially designed radio receiver codenamed SAM is used to decode and display the messages SAM is a prototype radio receiver with a 24 hour battery backup a text display visual threat display and an audio alert SAM is also able to control external devices such as sprinkler systems or rotate automated Fire Danger Rating Signs and is able to be solar powered The latest threat message for the receiver s cell remains on display meaning that the user need only check the radio when able or convenient instead of having to listen at specific times It is important to note that SAM
16. t also be located where there is access to permanent and reliable electricity supply This can either be a mains power socket or DC feed from a solar installation The SAM must be placed where it can attract attention Out of sight out of mind with this device is pointless Place it where you are going to be able to see and hear it If you need another one for the outhouse back shed or second story then either use the external siren and display facilities or consider purchasing supplementary unit s 1 2 4 Maintenance The SAM has a 12V Sealed Lead Acid battery capable of providing at least 24 hours backup time under low moderate threat conditions This battery must be tested and renewed if necessary at least twice a year There is some limited scope for the system to launch a battery self test to the SAM but at this time this functionality has not been implemented SAM User Manual Page 6 Of 15 Nexus Technology P L 2010 S Manuals SAM SAM_Instruction_ Manual_01_141010 doc 1 2 5 SAM Front Panel Once installed SAM needs no further attention other than when there is a change in the fire threat level to the cell that it is installed in It is however of the utmost importance to know what exactly is the information that SAM provides and how it is shown Plain Text Status Display Control Knob LE Se men M Status H ll IM Loud Ze See TMi TT Wi re IAL Fire Ban Status 4 Lamp D Althou
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