Extron electronics SF 3C LP Manuale utente

68-2224-01 Rev. D

09 20

SF 3C LP and SF 3CT LP

User Guide

Speakers

SoundField XD 3" Full-Range Ceiling Speakers

with 4" Low Proﬁle Composite Back Can



All trademarks mentioned are the property of their respective owners..

Trademarks

All trademarks mentioned in this guide are the properties of their respective owners.

The following registered trademarks (®), registered service marks (SM), and trademarks (TM) are the property of RGBSystems, Inc. or Extron

(see the current list of trademarks on the Terms of Use page at www.extron.com):

Registered Trademarks (®)

Extron, Cable Cubby, ControlScript, CrossPoint, DTP, eBUS, EDID Manager, EDID Minder, eLink, Flat Field, FlexOS, Glitch Free, Global

Configurator, Global Scripter, GlobalViewer, Hideaway, HyperLane, IP Intercom, IP Link, Key Minder, LinkLicense, LockIt, MediaLink,

MediaPort, NAV, NetPA, PlenumVault, PoleVault, PowerCage, PURE3, Quantum, ShareLink, Show Me, SoundField, SpeedMount,

SpeedSwitch, StudioStation, System INTEGRATOR, TeamWork, TouchLink, VideoLounge, V-Lock, VN-Matrix, VoiceLift, WallVault, WindoWall,

XPA, XTP, XTP Systems, and ZipClip

Registered Service Mark(SM) : S3 Service Support Solutions

Trademarks (™)

AAP, AFL (Accu-RATE Frame Lock), ADSP (Advanced Digital Sync Processing), Auto-Image, AVEdge, CableCover, CDRS (Class D Ripple

Suppression), Codec Connect, DDSP (Digital Display Sync Processing), DMI (Dynamic Motion Interpolation), Driver Configurator, DSP

Configurator, DSVP (Digital Sync Validation Processing), EQIP, Everlast, FastBite, Flex55, FOX, FOXBOX, IP Intercom HelpDesk, MAAP,

MicroDigital, Opti-Torque, PendantConnect, ProDSP, QS-FPC - QuickSwitch Front Panel Controller, Room Agent, Scope-Trigger, SIS -

Simple Instruction Set, Skew-Free, SpeedNav, Triple-Action Switching, True4K, True8K, Vector™ 4K, WebShare, XTRA, and ZipCaddy

FCC Class A Notice

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to

part15 of the FCC rules. The ClassA limits provide reasonable protection against harmful interference when

the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate

radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause

harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause

interference; the user must correct the interference at his own expense.

NOTE: For more information on safety guidelines, regulatory compliances, EMI/EMF compatibility,

accessibility, and related topics, go to https://www.extron.com/68-290-01 on the Extron

website.

Conventions Used in this Guide

Notifications

The following notifications are used in this guide:

WARNING: Potential risk of severe injury or death.

AVERTISSEMENT : Risque potentiel de blessure grave ou de mort.

ATTENTION:

• Risk of property damage.

• Risque de dommages matériels.

NOTE: A note draws attention to important information.

Specifications Availability

Product specifications are available on the Extron website, www.extron.com.

Extron Glossary of Terms

A glossary of terms is available at https://www.extron.com/technology/glossary.aspx.

Contents

Introduction............................................................ 1

About this Guide................................................. 1

Overview ............................................................ 1

Features ............................................................. 1

Application Example ........................................... 3

Installation.............................................................. 4

Installation Considerations .................................. 4

Installation Conﬁgurations................................... 4

Installing the Speaker System in a Suspended

Ceiling — Single Installer ................................... 5

Installing the Speaker System in a Suspended

Ceiling —

Division of Labor.............................................. 16

Installing the Speaker System in a Hard

Ceiling ............................................................. 30

Painting the Speaker Grille................................ 39

Troubleshooting: Signal Test Points................... 40

Testing Source Signal (All Configurations)...... 40

Testing the Impedance (Loop-Through

Configuration Only) ...................................... 40

SF 3C LP and SF 3CT LP User Guide • Contents ix

SF 3C LP and SF 3CT LP User Guide • Contents x

Introduction

This section gives an overview of the Extron SF 3C LP and SF 3CT LP Full Range 3-inch

SoundField Ceiling Speakers with 4-inch Low-Profile Back Can. It also provides a list of

system features and an application diagram. Topics include:

• About this Guide

• Overview

• Features

• Application Example

About this Guide

This guide describes the SF 3C LP and SF 3CT LP speakers and provides instructions for

installing all components of the system in different types of ceilings.

NOTE: Observe all applicable building codes and local ordinances when installing the

speaker.

Overview

The SF 3C LP and SF 3CT LP meet stringent UL 2043 requirements for smoke and heat

release in plenum air spaces. The 3-inch (76 mm) full-range driver features a frequency

range of 65 Hz to 20 kHz and a conical dispersion of 165 degrees. The SF 3C LP and

SF 3CT LP feature a thin-edged bezel and a magnetically attached grille.

The SF 3C LP supports 8 ohm operation. The SF 3CT LP supports 70 V, 100 V, and 8 ohm

direct operation. The SF 3CT LP has a 6-position rotary switch for selecting the various

power taps for 70V, 100V, or 8 ohms. The two models are physically similar, with slight

variations in weight and front baffle appearance.

The Extron SoundField SF 3C LP and SF 3CT LP are full-range ceiling speakers with 4-inch

(102 mm) low profile composite back cans for use in plenum rated ceiling environments with

limited vertical clearance above the ceiling.

Features

• 3-inch (76 mm) full-range driver with a tuned port

• 4-inch (102 mm) — deep low profile composite back can for plenum environments

• Frequency range — 65 Hz to 20 kHz

• 165-degree conical dispersion

• 16 watts continuous pink noise, 32 watts continuous program

• SF 3C LP —8 ohm direct

SF 3C LP and SF 3CT LP User Guide • Introduction 1

• SF 3CT LP —8 ohm direct or 70/100 volt operation on a 6 position, behind-the-grille

selector

• 8 ohm direct

• 70 volt: 16, 8, 4, 2, and 1 watt selectable

• 100 volt: 16, 8, 4, and 2 watt selectable

• White grille and bezel are paintable to match the installation environment

• Separable back can and baffle supports single-trade and division-of-labor

installations

• Modular V-rail and folding C-ring kit

• Cable/conduit access plate can be oriented for side or top connections

• Opti-Torque indicator rings prevent overtightening of locking arm screws

• Three locking arms for quick ceiling installation

• Thin bezel and magnetically attached grille

• UL 2043 plenum-rated enclosure

• UL 1480 listed for safety

• Dimensional and weight savings —reduces overall storage and shipping costs

SF 3C LP and SF 3CT LP User Guide • Introduction 2

Application Example

The illustration below is one example of configuring a system using the SF 3CT LP.

100-240V X.XA MAX, 50-60Hz XPA 1002-70V

LIMITER/PROTECT

SIGNAL

HPF

80 Hz

OFF

ATTENUATION

REMOTE

70V OUTPUTSINPUTS

∞0

∞

21 12

STANDBY

CLASS 2 WIRING

HDMI HDMI3

HDMI4

21 CONFIGURABLE

100-240V ~ --A MAX

50-60 Hz AUDIO OUTPUT

TALLY OUT

CONTACT IN

1 2 R

L R

Tx Rx G

321 4 +V

1 2 3 4 G

RS-232

OUT

HDMI

INPUT REMOTE

Extron

XPA 1002-70V

Power Amplier

Extron

SF 3CT LP

Ceiling Speakers

Audio

Tuner

Laptop

Extron

IN1604 HD

Four Input Scaler

POWER

12V

--A MAX

Tx Rx RTS CTS

COM 1

Tx Rx

COM 2

V C G

VOL RELAYS

1 2 C

1 2 3 4 G

DIGITAL I/O

PWR OUT = 6W

eBUS

+V +S -S G

LAN

IPCP PRO 250

IR/S

S G

Projector

HDMI

HDMI Extron

IPCP Pro 250

IP Link Pro

Control Processor

eBUS

RS-232

Extron

EBP 100

eBUS Button Panel

2-Gang

PUSH PUSH

POWER GUIDE MENU RES 480 480p 720p 1080i 1080p DIRECTV HD

SELECT

DIRECTV

DISPLAY

VOLUME

Extron

ON OFF

LAPTOP

TUNER

MUTE

HDMI

Figure 1. Typical SF 3CT LP Application

SF 3C LP and SF 3CT LP User Guide • Introduction 2

Installation

This section provides instructions for installing the SF 3C LP and SF 3CT LP speakers.

Topics include:

• Installation Considerations

• Installation Configurations

• Installing the Speaker System in a Suspended Ceiling — Single Installer

• Installing the Speaker System in a Suspended Ceiling — Division of Labor

• Installing the Speaker System in a Hard Ceiling

• Painting the Speaker Grille

• Troubleshooting: Signal Test Points

Installation Considerations

WARNING: Potential risk of severe injury. Installation and service must be performed

by authorized personnel only.

AVERTISSEMENT : Risque potentiel de blessure grave ou de mort. L’installation

et l’entretien doivent être effectués par le personnel autorisé uniquement.

• All wiring and electrical connections must conform to all applicable building codes and

local ordinances.

• Installation in a plenum-rated environment requires plenum rated cable or conduit.

• If using secondary support cables, the installer provides the cables.

Installation Configurations

The SF 3C LP and SF 3CT LP can be configured for the following ceiling types:

• Suspended ceiling: The following sections describe speaker installation procedures for

suspended ceilings.

• Hard ceiling: For hard ceiling installations, see Installing the Speaker System in a

Hard Ceiling on page 30.

SF 3C LP and SF 3CT LP User Guide • Installation 4

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