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GradeShift UDL Instruction Manual

Last updated 22/03/2018

2.4 Advanced Instructions

2.4  ADVANCED INSTRUCTIONS

RESET

The RESET button may be pressed at any time to immediately stop an alarm transmission. This will be followed by a complete power-up sequence. Calls that have not been sent before the reset will be stored and sent when the radio path is re-established. Pressing the RESET button will not clear any saved or downloaded settings.

To clear any pending calls stored in the NVM, plus to reset the polling delay to 45mins and to clear the Plug-on Adapter memory, press and hold the A button then briefly press the RESET button. Continue to press the A button until the GradeShift ‘beep-beeps’ to acknowledge this function.

FAULT LED INDICATION

The fault LED indicates a problem detected by the GradeShift. An error code will be displayed on the seven segment display (SSD). For reference please consult the error code list in the quick guide appendix. If the fault LED is flashing it is likely the GradeShift’s operational settings have not been downloaded yet.

MONITORING (POLLING)

To meet the EN50131 requirements for path monitoring on Grade 1-4 installations, the GradeShift sends regular polling calls to the Gemini network on all connected paths (i.e. Radio, PSTN and/or the LAN (IP) path).

The Installer should ensure that a reporting action has been agreed with the ARC for path failure reports from the Gemini Network.

To make installation easier, the GradeShift is supplied with polling disabled for 45 minutes. Polling will start automatically 45 minutes after power-up or reset.

For some testing functions it may be advantageous to turn Radio polling off. See the Appendix for the A&B buttons to disable polling. Polling will be re-enabled by the A&B buttons or when power is cycled or when the GradeShift is reset. One of DualCom's advanced features is that it can poll at different rates. The polling rate may increase (priority rate) on one path should there be a failure on the alternate path.

When the Primary path is functioning correctly the polling frequency and fault reporting time of the Secondary path will be at intervals greater than that of the designated Primary path. In the event of failure of the Primary path, the polling frequency and fault reporting time of the Secondary path will increase to equal the performance of the primary path (priority rate). The increased polling frequency and fault reporting time will continue until the fault is cleared or a period of 120* hours elapses (whichever is the sooner), after which the reporting time of the secondary path will return to its original fault reporting time. For information relating to fault reporting times please contact CSL.

End users should be aware that the increased (priority rate) polling frequency on a PSTN line is likely to interfere with, or inhibit use of any non-alarm related apparatus/services connected to a PSTN line that is shared with the DualCom. In such cases it is recommended to use an ex-directory 'Incoming Calls Barred' (ICCB) telephone line dedicated to DualCom use.

The DualCom’s polling rates may also be configured to avoid compromising a shared telephone line with frequent (priority rate) polling calls during the unset condition. In the event of a fault in the primary path during the Unset condition the Secondary polling frequency can be configured to run at an interim frequency greater than the standard rate but lesser than the priority rate. Agreement to such an action should be confirmed in writing by the customer (end user); with the relevant notification stating that this action is compatible with the risk assessment and/or the requirements of any interested party, for example an insurer. This feature is only available upon request.

Connecting other telecoms equipment in parallel to the analogue telephone line used by DualCom can stop the unit sending polling calls and alarm calls to an Alarm Receiving Centre. Parallel connection should never be used for DualCom PSTN connection when it is used in a security system. This connection option cannot cancel or ‘hold’ incoming or outgoing calls to other telephone equipment on the same line, and these functions will inhibit DualCom from making polling & alarm calls to the ARC.

WHERE POLLING HAS BEEN DISABLED FOR TESTING PURPOSES REMEMBER TO RE-ENABLE POLLING WHEN TESTING IS COMPLETED.

Variable or “priority rate” polling features

One of DualCom's advanced features is that it can poll at different rates. The polling rate may increase (priority rate) on one path should there be a failure on the alternate path.

When the Primary path is functioning correctly the polling frequency and fault reporting time of the Secondary path will be at intervals greater than that of the designated Primary path. In the event of failure of the Primary path, the polling frequency and fault reporting time of the Secondary path will increase to equal the performance of the primary path (priority rate). The increased polling frequency and fault reporting time will continue until the fault is cleared or a period of 120* hours elapses (whichever is the sooner), after which the reporting time of the secondary path will return to its original fault reporting time. For information relating to fault reporting times please contact CSL.

End users should be aware that the increased (priority rate) polling frequency on a PSTN line is likely to interfere with, or inhibit use of any non-alarm related apparatus/services connected to a PSTN line that is shared with the DualCom. In such cases it is recommended to use an ex-directory 'Incoming Calls Barred' (ICCB) telephone line dedicated to DualCom use.

The DualCom’s polling rates may also be configured to avoid compromising a shared telephone line with frequent (priority rate) polling calls during the unset condition. In the event of a fault in the primary path during the Unset condition the Secondary polling frequency can be configured to run at an interim frequency greater than the standard rate but lesser than the priority rate. Agreement to such an action should be confirmed in writing by the customer (end user); with the relevant notification stating that this action is compatible with the risk assessment and/or the requirements of any interested party, for example an insurer. This feature is only available upon request.

Connecting other telecoms equipment in parallel to the analogue telephone line used by DualCom can stop the unit sending polling calls and alarm calls to an Alarm Receiving Centre. Parallel connection should never be used for DualCom PSTN connection when it is used in a security system. This connection option cannot cancel or ‘hold’ incoming or outgoing calls to other telephone equipment on the same line, and these functions will inhibit DualCom from making polling & alarm calls to the ARC.


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