Vimar 03925, Руководство по установке

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Telegram transmission
3. Telegram transmission
3.1 Radio channel parameters
03925 transmits
Bluetooth technology
Low Energy (BLE) advertising telegrams within the 2.4 GHz radio frequency band (2402MHz … 2480MHz).
By default, 03925 will use the three BLE advertising channels (BLE Channel 37, 38 and 39) defined for transmission. The transmission of a radio telegram on these
three advertising channels is called an Advertising Event.
Use of different radio channels within the frequency band from 2402 MHz to 2480 MHz is possible, see chapter 6.7.9.
The initialization value for data whitening is set as follows:
■
For BLE channels is set according to specification (value = radio channel)
■
For the custom radio channels the initialization value is equal to the offset from 2400 MHz (e.g. value = 3 for 2403 MHz)
Table 1 below summarizes radio channels supported by 03925.
Radio Channel Frequency Channel Type
BLE Radio Channel
37 2402 MHz BLE Advertising Channel
0 2404 MHz BLE Data Channel
1 2406 MHz BLE Data Channel
…
10 2424 MHz BLE Data Channel
38 2426 MHz BLE Advertising Channel
11 2428 MHz BLE Data Channel
12 2430 MHz BLE Data Channel
…
36 2478 MHz BLE Data Channel
39 2480 MHz BLE Advertising Channel
Custom Radio Channels
40 2403 MHz Custom Radio Channel
41 2405 MHz Custom Radio Channel
…
77 2477 MHz Custom Radio Channel
78 2479 MHz Custom Radio Channel
3.2 Default radio transmission sequence
03925 transmits telegrams in its standard configuration by using so-called Advertising Events.
An advertising event is defined as the transmission of the same radio telegram on all selected radio channels (by default this would be on BLE Channel 37, 38 and
39) one after another with minimum delay in between.
For reliability reasons, 03925 will send several (minimum two, maximum three) advertising events for each button input. The resulting transmission sequence is shown
in Figure 4 below.
CH37 CH38 CH39
Pause
(20 ms)
CH37 CH38 CH39
Pause
(20 ms)
CH37 CH38 CH39
3.3 User-defined radio transmission sequences
In certain situations it might be desirable to transmit radio telegrams on channels other than the three advertising channels.
03925 therefore allows to select the radio channels to be used for the transmission of data telegrams and commissioning telegrams. The following transmission
modes are supported:
■
Both commissioning telegrams and data telegrams are transmitted on the advertising channels as three advertising events. This is the default configuration and
described in chapter 3.2 above.
■
Commissioning telegrams are transmitted on the advertising channels as three advertising events while data telegrams are transmitted in a user-defined sequence
as described below.
■
Both commissioning and data telegrams are transmitted in a user-defined sequence as described below.
Table 1 – 03925 supported radio channels
Figure 4 – Default radio transmission sequence