Extron SI 3CT LP manual

User’s Guide

SI 3CT LP

Ceiling Speaker

Frame Construction Ceiling Installation

1

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

Cut material.

c. Insert the conduit(s) into the knockout opening(s) and

secure the conduit to the cover with the locking nut.

d. Pull the speaker wires from the conduit, strip 0.2

” (5 mm)

from the wire ends (do not tin the wires), and secure the

wires into the 4-pole captive screw connector. To connect

speakers in parallel, see the wiring diagram below.

70 V To Speakers

Trace template.

2

The side terminal cover, as illustrated in step 3f, must first be removed before wiring the speaker.

Loosen the single top screw of the side terminal cover and pull the side terminal cover straight out. See the illustration below.

Loosen screw.

Side Terminal

Cover

Side View of Input Terminal

Power Amplifier Speaker 1 Speaker 2 Speaker 3

e. Bring the speaker up to the bottom of the hole in the

ceiling.

f. Plug the wired connector from step 3d into the speaker’s

audio input connector. Secure the top terminal cover

with the two top screws that were loosened in step 3a;

hook the side terminal cover to the top terminal cover; and

secure the side terminal cover in place with the screw that

was loosened in step 2.

See NOTE below.

Top Terminal

Cover

Side Terminal

Cover

4-pole Captive

Screw Connector 3

a. Remove the top terminal cover (see the illlustration in

step 3f) by loosening (do not remove) both top screws,

sliding the top terminal cover away from the screws, and

removing the cover, as shown here.

Loosen two screws.

Top Terminal

Cover

N Installation in a plenum-rated environment

requires a wire gauge of 14 AWG to 18 AWG.

4-pole Captive

Screw Connector

LOOP IN IN LOOP

b. Remove the knockout(s) from the top terminal cover

depending on the direction from which the conduit(s) will

be entering the cover.

Front View of Input Terminal

68-1263-01 Rev. B

09 07

1

User’s Guide

SI 3CT LP

Ceiling Speaker

Frame Construction Ceiling Installation, cont’d

4

Loosen the four screws on the front baffle (counter clockwise) 1/2 turn. Insert the speaker in the ceiling hole, then tighten the screws (clockwise) until the dog legs clamp the speaker to the ceiling. See the following illustration.

CAUTION Do not overtighten screws.

Suspended Ceiling Installation

1

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

2

Cut the hole in the tile (see step 1 on page 1).

3

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

4

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

C-ring 5

Connect a secondary support line from the seismic tab to a secure support point, as shown below.

100 Volt

70 Volt

Adjusting the Tap Selector .

Seismic Tab &

Support Line

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

Set the rotary tap selector (shown above) to the proper position.

CAUTION Do not turn the tap selector to the 8 Ω position when using 70 V / 100 V lines.

Install the speaker grille.

V-rail

5

Connect the wires to the speaker terminal connector (see step 3 on page 1).

6

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 overtighten screws.

7

Connect a secondary support line from the seismic tab to a secure support point (see step 5 of Frame Construction

Ceiling Installation on this page).

8

Set the rotary tap selector and install the grille (see step 5 of

Frame Construction Ceiling Installation on this page).

2

User’s Guide

SI 3CT LP

Ceiling Speaker

Painting the Speaker Baffle

Tear along the smaller perforated line of the cutout template marked as a 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

PC

VGA w/

Audio Cable

DVD/VCR Combo

Composite

Audio RCA

Extron

SI 3CT LP

Low Profile Ceiling

Speakers

Variable

L

PO

WER

R

INPUTS

(MONO)

REMO

TE

C

10V

L

(MO

NO

70V

4/8 Ohms

MP

A 181T

US

LISTED

I.T.E.

OUTPUTS

M 7

0V

Extron

MPA 181T

Mini Power Amplifier

Projector

VOLUME

MUTE

VCM 100

Extron

VCM 100 AAP

Volume/Mute Controlle r

Specifications

Acoustic & Electrical

Speaker type................................. Low profile ceiling speaker with metal back can

Frequency response..................... 75 Hz to 18 kHz, -10 dB, half space

Power capacity.............................. 16 W continuous pink noise

32 W continuous program

Nominal sensitivity........................ 83 dB, 1 W, 1 m, 16 W tap, half space

Nominal coverage angle............... 170° conical coverage

Nominal impedance ..................... 8 ohms

Rotary switch taps........................ 70V: 16 W, 8 W, 4 W, 2 W, 1 W

100V: 16 W, 8 W, 4 W, 2 W

Driver............................................ 3” (76 mm) full range paper cone with moisture

resistant coating

Input/output connector.................. (1) 5 mm captive screw connector, 4-pole for input

and loop-through

General

Package ....................................... 2 speakers (1 pair)

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

Mounting....................................... Ceiling mountable with included hardware: V-rails for

2’ x 4’ (600 mm x 1200 mm) ceiling tiles, and C-rings

Enclosure type.............................. Formed steel back can; high impact, fire-resistant

(UL94V-0), polystyrene plastic baffle/rim

Enclosure outer dimensions.......... 4.0” H x 9.9” diameter (102 mm x 251 mm diameter)

Cutout dimensions........................ 8.82” diameter (224 mm diameter)

Product weight.............................. 6 lbs (2.72 kg) each speaker

Shipping weight............................. 22 lbs (9.98 kg) per pair w/ mounting kit package

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.

Packaging

Mounting Screws

& Putty

Speakers

C-rings

V-rails (4)

Speaker Grilles

Extron Electronics, USA

1230 South Lewis Street

Anaheim, CA 92805

800.633.9876 714.491.1500

FAX 714.491.1517

Extron Electronics, Europe

Beeldschermweg 6C

3821 AH Amersfoort, The Netherlands

+800.3987.6673 +31.33.453.4040

FAX +31.33.453.4050

www.extron.com

Extron Electronics, Asia

135 Joo Seng Rd. #04-01

PM Industrial Bldg., Singapore 368363

+800.7339.8766 +65.6383.4400

FAX +65.6383.4664

Extron Electronics, Japan

Kyodo Building, 16 Ichibancho

Chiyoda-ku, Tokyo 102-0082

Japan

+81.3.3511.7655 FAX +81.3.3511.7656

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