Beyerdynamic UNITE TH Bedienungsanleitung Seite 20

Unite TH – Handheld Transmitter
20
5.2 Group ID
The group ID refers to devices that can be combined to a
virtual group. For example, all devices of a building, a travel
group or a conference room.
Use with the group ID 150 - 256
By default, the transmitters and receivers are supplied with the
group ID 256.
A common factory-set audio encryption key, which cannot be
changed, is used for the group ID range of 150 to 256. Due to the
factory-set audio encryption key the devices within the group
ID range of 150 to 256 can connect to each other without
pairing via the charger. In this case receivers can connect to
transmitters via the dynamic channel search.
Example: Via the dynamic channel search, a receiver which is
set to the group ID 160 will find all transmitters which are active
and also set to the group ID 160. The receiver can connect to a
transmitter without pairing. The receiver will not find
transmitters beyond the set group ID range of 160.
Attention: When using several transmitters (e.g. Unite AP4 and
several Unite TP) with the same group ID at the same time,
make sure that the individual channel names differ from each
other! Otherwise this can cause connection problems with the
receivers!
Use with the individual group ID 1 - 149
If several receivers are to be divided into different groups with
an individual encryption, for each group an individual group ID
between 1 and 149 can be assigned. A separate audio
encryption key is generated for an individual group ID in order
to ensure additional security against unauthorised listening
during the wireless transmission. This audio encryption key is
generated during the pairing process, stored in the charger
and transmitted from the charger to the transmitter and
receiver, along with the channel name and group ID. The
receivers can only connect to a transmitter with which they
have been paired via the charger. If the group ID is
subsequently set manually on a receiver which has not been
paired, no connection can be established to the transmitter
with the encrypted group ID, because the receiver does not
have the audio encryption key (refer to chapter "Encryption").