PS Engineering
PMA450B Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-450-0600
Page 3-15
Rev. 5, August 2020
Enter the user setup mode
More
Bluetooth
PIN (Note when PIN is changed from Disabled to a value, the Bluetooth will reset, and clear all paired
devices)
To remove the PIN, press PIN again, while the cursor is on a number.
3.12.3 Bluetooth Cellular telephone sidetone
Some cell phones provide sidetone, and when combined with unit sidetone can cause audio distortion. In the
PMA450B telephone sidetone can be enabled or disabled on the Telephone menu when a call is active.
Wired Satcom/Cell Phone input
The PMA450B can accommodate a wired telephone input as well as a Bluetooth connection. However, only
one can be active at a time. The Bluetooth symbol is absent from wired menu.
The wired telephone screen menu is activated when audio is detected from the phone. Sidetone and telephone
volume can be controlled from this menu. The telephone audio distribution is the same as Bluetooth, above.
This menu will switch off 25 seconds after the
incoming
conversation ends, or press End Call.
NOTE: The PMA450B does NOT answer or hang up the wired phone from this menu.
Internal Recorder and playback
The PMA450B comes equipped with an internal recorder. This digital system stores the last incoming audio
from the radio you have selected for transmit. It can store as many of 8 incoming messages, and up to 45
seconds of audio. The pilot and copilot hear the playback.
Recording is automatic. To play back the last recorded message, press and hold the COM Receive pushbut-
ton associated with the selected radio transmitter for about one (1) second. You can either wait for the mes-
