EnOcean PTM 535BZ, Руководство пользователя

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USER MANUAL PREVIEW
PTM 535BZ – BLUETOOTH AND ZIGBEE GREEN POWER PUSHBUTTON TRANSMITTER
© 2021 EnOcean | www.enocean.com F-710-017, V1.0 PTM 535BZ User Manual | v1.0 | May 2021 | Page 15/112
Figure 5 below illustrates the BLE advertising channel, BLE data channel and custom data
channel assignment within the 2.4 GHz ISM band.
2.4 GHz ISM Band
C
H
3
7
(
24
02
M
H
z)
C
H
37
(2
40
2
M
H
z)
C
H
00
(2
40
4
M
H
z)
C
H
01
(2
40
6
M
H
z)
C
H
02
(2
40
8
M
H
z)
C
H
08
(2
42
0
M
H
z)
C
H
09
(2
42
2
M
H
z)
C
H
10
(2
42
4
M
H
z)
C
H
38
(2
42
6
M
H
z)
C
H
11
(2
42
8
M
H
z)
C
H
12
(2
43
0
M
H
z)
C
H
13
(2
43
2
M
H
z)
C
H
34
(2
47
4
M
H
z)
C
H
35
(2
47
6
M
H
z)
C
H
36
(2
47
8
M
H
z)
C
H
39
(2
48
0
M
H
z)
...
...
2482 MHz 2400 MHz
C
H
40
(2
40
3
M
H
z)
C
H
41
(2
40
5
M
H
z)
C
H
42
(2
40
7
M
H
z)
C
H
49
(2
42
1
M
H
z)
C
H
50
(2
42
3
M
H
z)
C
H
51
(2
42
5
M
H
z)
C
H
52
(2
42
7
M
H
z)
C
H
53
(2
42
9
M
H
z)
C
H
54
(2
43
1
M
H
z)
C
H
76
(2
47
5
M
H
z)
C
H
77
(2
47
7
M
H
z)
C
H
78
(2
47
9
M
H
z)
BLE Advertising Channel
BLE Data Channel
Custom Data Channel
Figure 5
– PTM 535BZ BLE radio channel assignment within the 2.4 GHz ISM band
3.1.3 Data whitening
Data whitening prevents data with longs sequences of 0's and 1's from introducing a DC bias
into the transmitted signal or from having a non-uniform power distribution over the occupied
channel bandwidth.
To do so, the input data is reformatted based on defined rules and defined initialization val-
ues. The initialization value for data whitening is set as follows:
◼
For BLE data channels ( 0 … 36) and BLE advertising channels (37, 38 and 39)
Initialization value is set according to specification (value = channel number)
◼
For custom data channels ( 40 … 78 )
Initialization value is equal to Center Frequency - 2400 MHz
This means that custom channel 40 at 2403 MHz uses initialization value = 3