50
Hearing aids RC-DEX
TM-DEX
Bluetooth* -
NOAHlink
Data-rate
212 kbit/sec-
ond (raw
channel
capacity)
212 kbit/
second (raw
channel
capacity)
212 kbit/second
(raw channel
capacity)
2 .1 Mbps
Data flow
Simplex or
semi-duplex
capability
Simplex
capability
Simplex or
semi-duplex
capability
Time divi-
sion duplex
(TDD)
Protocol
Random
Access – no
collision avoid-
ance
Random
Access – no
collision
avoidance
Random
Access – no
collision avoid-
ance
Packet-
based proto-
col, time
divided;
secure Serial
Port Profile
(SPP)
* Bluetooth specification v2 .0 + EDR published by the Bluetooth Special
Interest Group (SIG) .
** EIRP = Equivalent isotropically radiated power .
