12. Troubleshooting Guide
Problem The unit will not dial out.
Cause Number incorrectly dialled
Action Check the telephone number you are calling has been entered correctly.
Cause If the SD1+ is connected to a PABX system you may require a pause after
dialling the first digit.
Action Program a pause in the telephone number (see “Operating Instructions”). If this
does not solve the problem the SD1+ must be connected to a direct
telephone line.
Cause Incorrect telephone line connections.
Action Check the connections to the telephone line (see section 7).
Problem When the unit calls the recipient they can't acknowledge the unit by pressing
the number [8] button.
Cause Incorrect acknowledgement procedure.
Action Instruct the recipient in the correct procedure (see Operating Instructions).
Cause Incorrectly connected to the telephone socket.
Action Check that all three connections are correctly connected (see section 7).
Cause Incompatible telephone.
Action Call the recipient and ask them to press the number [8] button on their
telephone for 1 second. If you hear anything other than a 1 second tone, their
telephone is not capable of acknowledging the SD1+.
Problem The recipient can't acknowledge the unit with a mobile telephone.
Cause Weak reception or incompatible telephone.
Action Mobile telephones will only work correctly if they are used in an area where the
reception is good.
Problem The SD1+ will not trigger from the alarm panel.
Cause Incorrect polarity setting.
Action Check the jumper-link is set to the correct position (see section 5).
Cause Incorrect trigger voltage.
Action Measure trigger voltage and check connections ( see section 6).
496500 Issue 2
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