User questions, hints
This chapter tries to explain some of the DMM 4650’s functions that first may seem somewhat surprising for the user and to provide the amended solution.
Question: Recording a message is suddenly interrupted by the DMM 4650?
Explanation: a) An external contact initiated a sequence with a higher priority (e. g. alarm) than the one of current user. This reaction is necessary and intended, since no user with a priority level 1 or 2 should be able to block the alarm functions.
Solution: a) Record the message with the same number (delete? = yes) after the priority sequence ends.
Explanation: b) Audio memory overrun.
Solution: b) Deleting message numbers that are no longer needed
Explanation: c) During recording the DMM 4650 has recognized a defect memory address, which is marked as
| bad and is no longer available for future recordings (bad block). |
Solution: c) | Start a new recording using the same message number (delete? = yes). |
Question: | The message number xx cannot be recorded. The message “access denied” is displayed. |
Explanation: a) The number has been assigned to a user with higher priority. You cannot delete this message. | |
Solution: a) | Select another message number. |
Explanation: b) This also happens during a remote recording, if the desired sequence for the message mistakenly
| has been recorded by the installer, without programming access for users with a lower priority. |
Solution: b) | User 3 has to delete this message. |
Question: | How can I test a sequence (only user 3), without audio transmission? |
Explanation: | The “System setup” > “Bypass” menu provides the possibility to switch the audio bypasslayre to |
| direct connection (input > output) for the duration of the test. This procedure interrupts the audio |
| connection DMM signals > output; except when the test sequence itself switches off the relay again. |
Question: | What happens when the operation voltage of 24 volts drops for several seconds during the |
| transmission of an alarm sequence? |
Solution: | In case one of the factory preset alarm signals (trigger A3, A4, B1, or B2) was used |
| sequence as long as the alarm button is still pressed. |
Question: | What do I have to do when the green POWER LED on the front panel blinks? |
Solution: | The flashing LED is caused by the DMM 4650’s |
| error is being detected. Detailed information on the cause of the error are only available to the |
| service provider (user 3) (see also on page 29). Enter the user 3’s password in the |
| menu, write down the displayed error messages, and using the soft key “quit” you have to delet |
| all errors one by one. |
| If the LED starts blinking again, this shows that the error is still present. Look for the cause that |
| generates the problem and try to solve it - otherwise send the appliance to the manufacturer for |
| servicing. |
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