Quality Of Service For Wireless Technology - Abbott Eterna 16000 User Manual

Table 7. Bluetooth® Low Energy (LE) wireless technology information
Channel
Bandwidth per channel
Data flow
Protocol
Semi-duplex capability
*EIRP = Equivalent isotropically radiated power (not duty cycle adjusted)
**AFH = Adaptive frequency hopping
The radio receiver in the device is using the same frequency and bandwidth as the
transmitter.
Cables and transducers:
Cables and transducers are not used during normal use of the device.

Quality of Service for Wireless Technology

Bluetooth® Low Energy (LE) wireless technology enables communication between the
charger and the clinician programmer or patient controller. The quality of the wireless
communication link varies depending on the use environment (operating room, recovery
room, and home environment).
After the clinician programmer or patient controller is paired with a charger, the
Bluetooth® wireless technology symbol is visible on the clinician programmer or patient
controller in the upper right corner of the screen. When the Bluetooth wireless
connection is not active, the symbol appears dimmed.
The quality of service (QoS) should allow wireless data to be transferred at a net rate of
2.5 kB/sec. Each connection interval includes a semi-duplex transmission with a required
acknowledge, a transmission latency in each direction (2x), and a receive-to-transmit
mode (RX‑to‑TX) time. Data is resent if not successfully received. Each key press may
transmit up to 4 data packets with up to 20 bytes per packet, depending on the number
of packets that need to be transmitted (that is, if there is only one packet to transmit,
only one packet will be transmitted). If the interference is high (for example, the bit error
rate exceeds 0.1%), the user may experience what appears to be a slow connection,
difficulty pairing devices, and a need to decrease the distance between connected
devices. For information on how to improve connection issues, refer to Troubleshooting
for Wireless, Coexistence, or Interference Issues (page 21).
40 logical channels using AFH**
2 MHz
Bi-directional
Bluetooth LE wireless technology
Yes
20