User Manual

Confidential - Do Not Distribute Revision A - Sep. 9 2011 page 14 of 18
7 Features
7.1 System Features
7.1.1 Bluetooth Audio Subsystem
[R63]. The system shall wirelessly pair to a Bluetooth-enabled device.
[R64]. The system shall be up to date with the latest version of the Bluetooth protocol specification v2.1
and be compatible with the Enhanced Data Rate (EDR) specification (Data Rate: 3 Mbit/s).
[R65]. The operating range of the system shall meet or exceed the requirement of a Bluetooth Class 2
device (Maximum permitted power: 2.5mW – 4dBm, Range: 30 feet).
[R66]. The BT test protocol shall demonstrate better than 0.1% BER (as a note this should correspond
to a receiver with better than -85dBm sensitivity) over a free air range of at least 12 meters
[R67]. Less than 0.1% BER shall be verified at 432 test points.
The test area is described as 360 degree radial cone, -15degrees to +40 degrees in elevation, 12
meters from the unit under test.
Each test point is within this cone at both -15 degree declination and +40 degree elevation, at 10
degree radial intervals. This yields a total of 72 test points (36 radial points * 2 elevation angles).
At each test point, the Class 2 transmitting device shall be oriented orthogonally in all 3 axis, 180
degrees in each axis (yielding a total of 6 orientations).
Up to 3 commercially available Class 2 transmitting devices shall be used during this test.
[R68]. The system shall pair with a Bluetooth enabled device in order to wirelessly stream audio content
from a Bluetooth audio source device. Advanced Audio Distribution Profile (A2DP) version 1.2 allows
the use of the mandatory Sub Band Coding (SBC) codec for compressing audio for efficient
streaming.
[R69]. The Bluetooth subsystem shall be capable of pairing and saving pairing information with a
minimum of 8 source devices.
7.1.2 Wi-Fi Audio Subsystem
[R70]. The system shall be able to accept audio from the Wi-Fi subsystem
[R71]. The Wi-Fi Audio subsystem shall employ 802.11n
[R72]. The Wi-Fi Audio subsystem shall also include BT A2DP Sink capability with similar performance
to the standalone BT module
[R73]. The Wi-Fi Audio subsystem shall have a minimum 400MHz ARM9 or equivalent performance
[R74]. The Wi-Fi Audio subsystem shall have a minimum of 128MB of Flash memory and 64MB of
DRAM
[R75]. The Wi-Fi Audio subsystem shall run the Linux operating system
[R76]. The Wi-Fi Audio subsystem shall be able to accept a I2S input from the Bluetooth Subsystem
and/or the incorporated BT A2DP sink system of the BT/Wi-Fi module
7.1.3 Power
[R77]. The system shall have the following power modes:
a. Normal operational mode (front panel standby LED is white).
b. Standby (front panel power LED is off).
c. Off mode (front panel power LED is off).
[R78]. When the system is off, a power command shall transition the unit from standby to operational
mode.
[R79]. When the system is in operational mode, a power command shall transition the unit from
operational mode to off.