Extron electronics SM 3 Manuale utente

Product Category

SM 3 • Setup Guide

This setup guide contains installation information about the Extron SM 3 speaker. The SM 3 speaker is a low proﬁle surface-

mount speaker system that features a three-inch full-range driver with very wide audio dispersion. Speaker mounting

incorporates a separate wall mounting plate that can be attached directly to a wall stud or to an electrical box behind the

wall. The speaker wiring attaches to the wall mounting plate so that the speaker can easily slide into the mounting plate,

making electrical contact between the mounting plate and the contacts on the speaker. A built-in locking mechanism

between the speaker and the mounting plate also prevents the speaker from being removed by unauthorized personnel.

The speaker may be easily removed by depressing a hidden release mechanism that does not require tools. As an added

feature, a security key is provided to lock the mechanism in order to prevent unauthorized speaker removal.

CAUTION:Installation and service must be performed by authorized personnel only.

The illustration below is one example of conﬁguring a system using the SM 3 speakers.

POWER

12V

3AMAX

OUTPUT

4/8

OHMS

INPUTS

REMOTE

VOL/MUTE

10V 50mA

MPA152

CUS

LISTED

17TT

AUDIO/VIDEO

APPARATUS

CLASS2 WIRING

DONOT GROUND

ORSHORT

SPEAKEROUTPUTS!

Extron

CONFIG

DISPLAY

VOLUME

OFF

MLC 104 IP PLUS

VIDEO

AUX

VIDEO

IMAGE

MUTE

Extron

MPA 152

Mini Power

Amplier

RGBHV

S-Video

Audio

Video

DVD/VCR

Combo

Laptop

Projector

RS-232 or

IR Projector

control Extron

MLC 104 IP Plus

MediaLinkController

with IP Link

Extron

SM 3

Full-range

Speakers

Installing the Speaker Mounting Plate

The SM 3 speaker comes with two types of speaker adapter plates:

z0° mounting plate — The 0° mounting plate allows the speaker to be mounted ﬂat on a vertical wall surface with the

speaker protruding less than four inches (ADA compliant) from the wall surface (see the illustration below).

z10° mounting plate — The 10° mounting plate allows the speaker to be mounted at a ten degree angle so that the

speaker can be pointed down from an elevated position (see the illustration below).

0° Mounting Plate 10° Mounting Plate

SM 3 • Setup Guide (Continued)

Mounting to a Wall Box

1. Install the speaker cables into the wall or conduit before installing the wall box.

2. Place the wall box against the installation surface, and mark the guidelines for the opening on the wall.

3. Cut the material from the marked area.

4. Insert the wall box to check the size of the opening and ﬁt. Enlarge or smooth the edges of the opening if needed.

5. Feed cables through punch-out holes of the wall box leaving enough slack for the speaker connections and secure them

with cable clamps to provide strain relief.

6. Insert the wall box into the opening and attach it to the wall or stud, leaving the front edge ﬂush with the outer wall.

7. To attach a wall box to wood, use four #8 or #10 screws or 10-penny nails. A minimum of 1/2 inch (1.3 cm) of screw

threads must penetrate the wood.

Wall opening

ﬂush with

edge of box

Speaker

Cables

Cable Clamp

Screws or Nails

Wall Stud

Mounting to a Wall Stud

1. Install the speaker cables into the wall or conduit before installing the speaker mounting plate.

2. Locate the wall stud where the mounting plate will be installed and while positioning the mounting plate on the wall

mark the location of two pilot holes using the holes on either side of the mounting plate so that the stud does not

interfere with the speaker wire routing, as shown below.

NOTE: A speaker wire access hole (see below) must also be cut in the wall, so mark that hole location now with the mounting

plate positioned on the wall while ensuring that the wall stud does not interfere with the wire routing and that the

mounting plate hides the access hole.

Mounting Screws

3. Drill the mounting plate pilot holes and cut the speaker wire access hole, as previously marked.

4. Route the speaker cables through the wall without snagging while leaving enough slack to connect the wires to the

mounting plate quick connect contacts.

Product Category

Wiring the Speaker Mounting Plate

1. Route the two speaker wires through the rear of the mounting plate and attach the wire ends to the quick connect

contacts using a small screwdriver (see the example illustration below) while observing the correct polarity.

NOTE: The positive (+) connector and the negative (-) connector are marked on the mounting plate.

2. Attach the mounting plate to the wall box (where used) or to the wall stud, using two mounting screws (see the

example illustration below).

NOTE: The mounting screw holes in the mounting plate allow for some degree of play and lateral movement so that the

mounting screws may be aligned properly with the screw holes of the wall box.

Mounting Screws

Quick Connect Contacts

Attaching the Speaker to the Mounting Plate

Step 1: Attaching the speaker

Position the rear mounting slot of the speaker above the catch tab of the adapter plate

and slide the speaker down into the mounting plate so that the speaker is secured in place

(see the illustration on the right). When properly seated, the speaker connections are

automatically made.

NOTE: By default, the speaker is set to the “unlocked” position.

After mounting, the speaker may be locked to the mounting plate by turning the key

to the locked position (see step 2).

NOTE: To avoid misplacing the key, store the key in a secure location for future use.

Catch Ta b

68-1540-50

Rev. A

01 12

Extron Headquarters

+1.800.633.9876 (Inside USA/Canada Only)

Extron USA - West Extron USA - East

+1.714.491.1500 +1.919.863.1794

+1.714.491.1517 FAX +1.919.863.1797 FAX

Extron Europe

+800.3987.6673

(Inside Europe Only)

+31.33.453.4040

+31.33.453.4050 FAX

Extron Asia

+800.7339.8766

(Inside Asia Only)

+65.6383.4400

+65.6383.4664 FAX

Extron Japan

+81.3.3511.7655

+81.3.3511.7656 FAX

Extron China

+4000.398766

Inside China Only

+86.21.3760.1568

+86.21.3760.1566 FAX

Extron Middle East

+971.4.2991800

+971.4.2991880 FAX

Extron Korea

+82.2.3444.1571

+82.2.3444.1575 FAX

Extron India

1800.3070.3777

Inside India Only

+91-80-3055.3777

+91 80 3055 3737 FAX

Step 2: Using the security key to lock the speaker

The SM 3 speaker uses an included security key to lock and unlock the speaker to its mounting plate (see the illustrations

below). The key has two positions, lock and unlock. The active position of the key is nearest the top of the speaker.

Insert the key into the center keyhole of the speaker grill and turn the key as needed (see the illustration below). There are

three small raised “dimples” on the grill surface that surrounds the keyhole.

Tw ist to

Lock/Unlock

Unlocked

Front View Rear View

Locked

CAUTION:The key must be rotated to the unlocked position before the speaker is mounted to the mounting plate

(see the rear view illustration above). Failure to place the speaker in the unlocked position will result in

damage to the speaker lock mechanism should an attempt be made to mount the speaker.

Removing the Speaker from the Mounting Plate

To remove the speaker from the mounting plate, you must unlatch the locking

mechanism:

1. Insert the security key into the keyhole of the speaker grill (see Step 2of

the previous section) and turn the key to the unlocked position.

2. Remove the security key.

3. Apply pressure with your ﬁnger over the keyhole to unlatch the speaker

from the mounting plate and lift up on the speaker (see the illustration

on the right).

CAUTION: To avoid damaging or scratching the grill, do not use tools

or sharp instruments to depress the unlocking mechanism

hidden behind the center of the grill.

ess to Release

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