PS Engineering
PMA450B Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-450-0600
Page 3-13
Rev. 5, August 2020
When Bluetooth is active, a Bluetooth icon and the battery status of the device is displayed in the upper right
corner of the home display.
3.11.1 Pairing and un-pairing Bluetooth devices
The PMA450B BT1 Module can be paired with up to eight individual devices. When that number is ex-
ceeded, the PMA450B will drop a device to allow the new device to be added.
If the audio panel is turned on before the Bluetooth device, you will have to connect manually from your
Bluetooth device. Otherwise, the audio panel should connect automatically.
When the PMA450B is first powered on, an auto connect sequence attempts to connect the BT to previously
paired devices. During this period, connection times may vary from 10 seconds to 1 minute. Although the
PMA450B can store up to eight devices, we recommend limiting the number if practical. During start-up, the
PMA450B will look for each previously paired device, which may slow connection time.
Hint, if your old phone is not recognized by the PMA450B, you may need to reset from the Bluetooth menu.
3.11.1.1 Paring separate music and telephone devices (BT1)
It is possible to use a different music source (iPad, iPod with Bluetooth adapter, Bluetooth enabled laptop,
etc.) and telephone. However, only one music source can be streaming at a time.
NOTE: A previously paired iOS Hands Free device may experience from one to several connect/disconnects
sequences when the PMA450B is first powered on. This is normal and will result in the device remaining
connected when the auto connect process is completed.
If two iOS devices are paired and connected to the PMA450B, and one of them does not auto connect on the
next power cycle (perhaps it isn’t in the airplane, or the Bluetooth is turned off), it will be ignored until it is
reconnected manually.
3.11.1.2 Paring music devices (BT2 available in -0601 & -0701 only)
The PMA450B incorporates a second Bluetooth Module, Labeled as BT2. This module supports entertain-
ment audio input as well as audio streaming
As delivered by the factory BT 2 is set for music input. The Module is labeled PMA450B BT 2, with the
last four digits of the serial number. This can be relabeled in the User Setup Menu.
To configure the BT2 Module for Audio Streaming out to a device such as a Video Camera, you will need
enter the User Setup Mode. See
Bluetooth® Telephone Mode
The PMA450B serves as a full duplex interface for telephone systems such as portable cellular phones with
Bluetooth connectivity.
Warning:
United States FCC Regulations contained in 47 CFR § 22.925 currently contain prohibition on airborne op-
eration of cellular telephones. “Cellular telephones installed in or carried aboard airplanes, balloons or any
other type of aircraft must not be operated while such aircraft are airborne (not touching the ground). When
any aircraft leaves the ground, all cellular telephones on board that aircraft must be turned off.”
In
ALL
intercom mode, all crew and passengers will be heard on the phone when they speak. All will hear
selected audio. Com audio is automatically heard in the headsets (unless in Alternate Intercom Mode).
