Extron electronic PVS 305SA manual Optional Accessory Installation Priority Page Sensor Kit

Optional Accessory Installation — Priority Page Sensor Kit

The Priority Page Sensor Kit momentarily silences classroom audio whenever a page is made from a public address (PA) system.

For detailed information, refer to the Priority Page Sensor Kit Installation Instructions, supplied with the device.

NThe Priority Page Sensor works with traditional 25 V or 70 V and 4/8 ohm PA systems. It is not designed for, and may not work properly with, two-way intercoms or systems that are IP-based or use digital clocks.

Priority Page Sensor Kit included parts:

•Priority Page Sensor

•UL-compliant junction box with a cable clamp and a lid

•35 ft. (10.7 m) of sensor cable

Installation Procedure

WAll structural steps, anchoring, and electrical installation should be performed by qualified personnel in accordance with local and national building codes, fire and safety codes, and/or local and national electrical codes.

To meet the plenum rating requirement, the Priority Page Sensor assembly must be installed in a UL-compliant junction box with a cover and all cables to and from the sensor must be plenum rated.

1. Choose a suitable location for the sensor. It must be located near, and in series with, the speakers.

2. If the sensor is to be located in a plenum space, the junction box (provided) can be used. Knock out an opening at one end of the junction box and attach the cable clamp (see figure at right). Secure the box where the sensor will go.

3. Disconnect the PA system speaker cable from the speaker.

Remove the outer protective jacket from the speaker cable to expose the two speaker wires from the sensor to the speaker (as shown at right). Do not remove the inner protective jackets that cover the individual wires.

If the sensor is to be located in a plenum space, feed a loop of one of the exposed speaker wires through the cable clamp into the junction box. The other wire must bypass the sensor to be connected later directly to the speaker.

2UL-compliant junction box and cover

Open the

Page Sensor

4.Open the top of the Priority Page Sensor and loop the speaker wire that is inside the junction box tightly around the top part of the sensor.

NLoop only one of the speaker wires around the sensor cover. Do not loop both wires. Polarity need not be observed.

The other speaker wire must bypass the sensor and connect directly to the speaker.

•For a 25 V or 70 V system, wrap 5 to 8 loops.

•For a 4/8 ohm system, wrap 2 to 4 loops.

Speaker Cable with Plenum Jacket Intact

Strip plenum jacket from speaker cable to reveal two speaker wires.

Priority

Page

Sensor

Ceiling Mounted

Paging Speaker

4Open the sensor and loop a wire around the sensor

3-2 PoleVault Systems Installation • Optional Accessory Installation