Extron electronic PVS 400, 300 Testing and Adjustment Procedure, Sensitivity knob adjustment

Testing and Adjustment Procedure

The fully installed system is shown below To test that the classroom audio is muted when a PA system announcement (page) occurs:

1. Turn the classroom audio on.

2. Speak into the PA system microphone. The classroom audio should be muted while the PA system page occurs and be restored when the page ends.

3. If the Priority Page Controller fails to mute the classroom audio during a page, turn the Sensitivity adjustment, on the rear panel of the controller, clockwise.

4. If the classroom audio is muted without a page occurring, turn the Sensitivity adjustment counterclockwise

5. If the classroom audio is muted for too long a time after a page, or is restored too early, check the Time DIP switch settings. A short time delay is necessary so that if the PA system announcer pauses briefly during the announcement, the classroom audio is not restored prematurely. Set the switches so that the output relay will remain closed for a set time after a PA announcement has ended.

TIME SENSITIVITY

ON

1 2

Adjusting sensitivity knob:

Clockwise to increase

Counterclockwise to decrease

3/ 4 Sensitivity knob adjustment

TIME			TIME
ON		= 2.0 sec (default)	ON		= 4.0 sec
1	2		1	2
TIME		= 6.0 sec	TIME		= 8.0 sec
ON			ON
1	2		1	2

5Priority Page Controller Time DIP switch settings

From Classroom
Paging System
Page	Ceiling Mounted
	Paging Speaker
Sensor

PV SI 3C LP

Ceiling

Speakers

Extron
PVS 204SA
Twisted Pair
Switcher	Remote
Relay	Vol/Mute
	Control
Output

Extron

PPC 25

Priority Page

Controller

PoleVault Systems Installation • Optional Accessory Installation 2-33