Extron electronic SI 26CT User Manual 2

SI 26CT

User’s Guide

Frame Construction Ceiling Installation

Take the cutout template from the packaging box and punch out along the larger perforated circle. Place the cutout template against the bottom of the ceiling and trace the inside of it. Carefully cut out the ceiling material along the circle.

Ceiling Speaker

Loosen the four screws on the front baffle (counter clockwise) 1/2 turn. Then tighten the screws (clockwise) until the dog legs clamp the speaker to the ceiling.

CAUTION

Do not over tighten screws.

Trace template.

Cut Material

Remove the top cover to access the speaker connector. Attach the speaker wires to the 4-pole captive screw connector (supplied). Insert the 4-pole captive screw plug into the connector on back of the speaker. Install the conduit and secure the connections.

Enlarged to Show Detail

From

To Speaker

Cover

Power Amplifier

Conduit

4-pole Captive

Screw Connector

Replace the top cover and tighten the screws. Insert the speaker through the bottom of the hole in the ceiling.

To Speakers

Power Amplifier

Speaker 1 Speaker 2 Speaker 3

Parallel Hookup Wiring Diagram

Connect a secondary support line from the seismic tab to a secure support point. Set the rotary tap selector and install the speaker grille.

Seismic Tab & Support Line

60W

30W

15W

70 V

100 V

15W

Adjusting the Tap Selector

Specifications:

Acoustic & Electrical

Speaker type.................................. 2-way, low profile ceiling speaker with metal back can

Frequency range........................... 70 Hz to 20 kHz, -10 dB, half space

Power capacity.............................. 150 W continuous program

75 W continuous pink noise

Nominal sensitivity...................... 89 dB, 1 W @ 1 m, 60 W tap, half space

Nominal coverage angle.............. 110° conical coverage

Nominal impedance .................... 16 ohms

Crossover frequency................... 3.5 kHz

Rotary switch taps.................... 70V: 60 W, 30 W, 15 W, 7.5 W, 16 ohms direct

100V: null, 60 W, 30 W, 15 W, 16 ohms direct

Woofer........................................... 6.5" (165 mm) polypropylene cone

with moisture resistant coating

Tweeter.......................................... 1.0" (25 mm) titanium dome

Overload protection....................... Full range power limiter with the 16 ohm direct input

only, protecting the tweeter, woofer, and crossover

General

Temperature/humidity................... Storage: -40 to +158 °F (-40 to +70 °C) /

10% to 90%, noncondensing Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing

Listings ........................................ UL 2043, UL1480

Compliances ................................ CE, NFPA90, NFPA70A

Warranty ....................................... 5 years parts and labor

NOTE: All nominal levels are at ±10%. NOTE: Specifications are subject to change without notice.

7.5W

30W

60W

Apply 4 pieces of black putty (supplied), equally spaced 90° apart, to the upper inside edge of the grille.

68-1065-01 Rev. B

06 06

User’s Guide

Suspended Ceiling Installation

SI 26CT

Ceiling Speaker

Remove the ceiling tile where the speaker is to be installed.

Cut the hole in the tile. See step 1 of the Frame Construction Ceiling Installation section on the back.

Bring the speaker cable through the hole of the cut tile, then reinstall the tile.

Remove the adjacent tile. Place 2 V-rails and 1 C-ring across the tile where speaker is to be installed. Insert the speaker through the bottom of the hole in the ceiling tile.

C-ring

V-rail

Painting the Speaker Baffle

Cut along the smaller perforated line of the cutout template, marked as paint shield. Push it into the front baffle of the speaker. Paint the front. Remove the paint shield after the paint has dried.

Application diagram

Extron

VGA w/

Audio Cable

DVD/VCR Combo

Composite Audio RCA

Variable

MPA 181T

LISTED 1T23 I.T.E.

COM 70V

OUTPUTS

REMOTE

70V

10V

INPUTS

VOL/MUTE

4/8 Ohms

(MONO)

POWER

12V 3A MAX

Extron MPA 181T

Mini Power Amplifier

SI 26CT

Two-way Ceiling Speakers

MUTE

VCM 100

VOLUME

Connect the wires to the speaker terminal clips (see step 2 on the back).

Loosen the four screws on the front baffle (counter clockwise) 1/2 turn. Then tighten the screws (clockwise) until the dog legs clamp the speaker to the ceiling.

CAUTION

Do not over-tighten screws!

Connect a secondary support line from the seismic tab to a secure support point (see step 5 on the back).

Apply 4 pieces of black putty (supplied), equally spaced 90° apart, to the upper inside edge of the grille (see step 5 on the back).

Install the speaker grille.

Packaging

V-rails (4)

Projector

Mounting Screws & Putty

Extron VCM 100 AAP

Volume/Mute Controller

Speakers

C-rings

Speaker Grilles