USER MANUAL
PTM 216B – BLUETOOTH
®
PUSHBUTTON TRANSMITTER MODULE
© 2022 EnOcean | www.enocean.com
F-710-017, V1.0
PTM 216B User Manual | v1.0 | February 2022 | Page 13/86
3.3.1
Supported radio transmission sequences
PTM 216B supports the following user-defined sequences:
Three
channel
sequence
This sequence is similar to the default Advertising Event with the difference that the
user can select the radio channels to be used. The three-channel sequence is de-
scribed in chapter 3.3.2 below.
Two
channel
sequence
In this sequence the radio telegram is transmitted using four transmissions on two
radio channels. It is described in chapter 3.3.3 below.
One
channel
sequence
In this sequence the radio telegram is transmitted using six transmissions on one
radio channel. It is described in chapter 3.3.4 below.
The selection of user-defined radio transmission sequences is made via the
VARIANT
register
of the NFC configuration interface, please see chapter 6.7.9.
3.3.2
Three-channel radio transmission sequence
The three-channel radio transmission sequence is similar to the default transmission se-
quence. The difference is that the radio channels (BLE Channel 37, 38 and 39 in the default
transmission sequence) can be selected using the registers
TX_CHANNEL1
,
TX_CHANNEL2
and
TX_CHANNEL3
.
The PTM 216B telegram will in this mode be transmitted on the radio channel selected by
TX_CHANNEL1
first, immediately followed by a transmission on the radio channel selected by
TX_CHANNEL2
and a transmission on the radio channel selected by
TX_CHANNEL3
.
This transmission sequence will be sent three times in total as shown in Figure 6 below.
The default interval between the advertising events is 20 ms. Starting with product version
DC-06 it is possible to reduce this interval to 10 ms via the NFC configuration interface. See
chapter 6.7.9 for details.
Figure 6 – Three channel radio transmission sequence
The format of
TX_CHANNEL1
,
TX_CHANNEL2
and
TX_CHANNEL3
is described in chapter 6.7.10.
TX_CHANNEL1
TX_CHANNEL2
TX_CHANNEL3
TX_CHANNEL1
TX_CHANNEL2
TX_CHANNEL3
TX_CHANNEL1
TX_CHANNEL2
TX_CHANNEL3
INTERVAL
(20ms or 10ms)
INTERVAL
(20ms or 10ms)