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Instruction texts for switching a relay on or off via SMS
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If any field is left empty, the corresponding event will not be controllable via SMS instructions.
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SMS to switch relay X on
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SMS to switch relay X off
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SMS to switch relay Y on
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SMS to switch relay Y off
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- Text must NOT contain commas or full stops. Maximum text length is 30 characters.
- Accented characters are NOT allowed. The text is NOT case sensitive.
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Telephone numbers for X or Y relay remote control by dialling-in |
These items contain telephone numbers authorised for switching relays by dialling-in. Up to 50 tel. numbers can be programmed for each relay. Only one telephone number can be contained in a single row. Each tel. number can be followed by a comma-separated number in the range 1 to 99 specifying the limit in the number of calls.
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Telephone numbers used for relay X control |
Telephone numbers used for relay Y control
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- If a call is made to David from a pre-programmed number, the call is rejected and the requested event is performed (see Output relay switch-on period). Dialling-in allows you free-of-charge relay control (calls are not answered). This feature is not applicable to phones with withheld numbers.
- International format is recommended, spaces as separators are allowed.
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In the case of limited-validity tel. numbers, when the call count reaches the limit, the tel. number is erased from memory and can no longer be used (%s).
number deletion is reported to the service number by SMS
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Example:
+420 777 777 771 |
An entry with a permanently valid phone number. |
+420 777 777 772,15 |
An entry with a validity limit. |
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Output relay switch-on period
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Relay X switch-on period |
Relay Y switch-on period |
hrs min sec |
hrs min sec |
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- If a zero value is entered (0h 0m 0s) then receiving a switch-on SMS instruction or dialling-in will cause the relay be switched-on permanently - until a switch-off SMS instruction or another dialling-in (consecutive dialling-in from a pre-programmed number will toggle the relay on - off - on...). For instance, if you enter 5 minutes, the relay will switch on for 5 minutes.
- If a subsequent request is received for switching on the relay again, a 5 minute timeout will restart (the duration will be extended).
- After receiving a switch-off SMS instruction during the switch-on time, the relay will switch off (regardless of whether it was originally switched on via SMS or dialling-in). The maximum switch-on period must not exceed 10 hours.
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DTMF codes for X or Y relay remote control - only available for the GD-04D version
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If at least one of the four entries is not empty then every telephone call to David will be followed by a 15 second ringing period after the end of which the call is answered. This is indicated by a short beep on the line. Subsequently, David waits for a numeric code to be keyed on the telephone keypad. A switch-on is confirmed by a long beep, a switch-off by two short beeps. The maximum waiting period for code entry is 60 seconds, after which the call is terminated. |
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- Maximum code length is 8 digits.
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