AtlasIED LC372SR Installation Instructions And Use

INSTALLATION INSTRUCTIONS LC372 SOUND REINFORCEMENT MODULE

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LC372SR

SOUND

REINFORCEMENT

MODULE

Installation Instructions

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LC372SR SOUND REINFORCEMENT MODULE INSTALLATION INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Install in accordance with the manufacturer’s in­structions.

8. Do not install near any heat sources such as ra­diators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.

9. Only use attachments/accessories specified by the
manufacturer.

10. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord
or plug is damaged, liquid has been spilled or ob­jects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not
operate normally, or has been dropped.

SAFETY SYMBOLS

Labeling on products and the Installation Instructions &
User Manual may use safety related graphical symbols

as shown below to note safety requirements.

Lightning Bolt: The lightning flash with
arrowhead symbol, within an equilateral triangle,
WARNING symbol, is intended to alert the user to
the presence of un-insulated dangerous voltage
within the product’s enclosure that may be
sufficient in magnitude to constitute a risk of
electric shock to persons or domestic animals.

Exclamation Point: The exclamation point
within an equilateral triangle, CAUTION symbol,
is in-tended to alert the user to the presence of
important operating and maintenance (servicing)
instructions, or a hazard that can damage equip­ment.

Do not proceed beyond a WARNING or CAUTION notice
until you have understood the hazardous condition and
have taken appropriate steps.

INTRODUCTION

The LC372SR is a classroom sound reinforcement module designed for use in the IED LANcom SCS. The LC372SR
utilizes wireless infrared microphones with an integrated receiver-audio mixer/amplifier to provide audio amplification
in small to medium-sized applications like classrooms, libraries, lecture halls, small gymnasiums and auditoriums. The
LC372SR has a line-level output to feed external devices such as hearing assistant systems, audio recorders or larger
power amplifiers if it is used in a larger room such as a gymnasium. The Sound Reinforcement Module comes complete
with 30 watt amplifier/receiver, infrared microphone, infrared sensor and charging station. It is controlled using a web­based interface for simplified configuration and use. It features no external knobs or switches to eliminate tampering or
inadvertent system changes. All adjustments are made through IED’s LANcom SCS Software (LC300SWP) that allows
teachers and end users to easily manage program source selection, individual component volume, muting and other
functions after the installing contractor sets levels for emergency messages, bells and paging audio.

Classroom sound reinforcement benefits teachers, guest lecturers, students and the education system as a whole. With
even sound distribution, lessons are heard no matter where students are seated. Attention and concentration are raised,
especially in the back of the room, through this added involvement. Teachers no longer strain their voice when using a
wireless microphone and they can easily integrate with multimedia teaching tools such as computers and DVD players
by controlling audio from a single source. With intercom, priority paging and emergency notification to inform another
location of the need for outside assistance, IED LANcom SCS fulfills the needs of any education or large multifaceted
facility.

The LANcom SCS is a full system solution to meet the needs of all school districts. The flexible and wide array of prod­ucts is designed to provide all the audio support needed no matter the application.

The integrated receiver of the LC372SR is a 30W amplifier with a 25V speaker line. It features two (2) RJ45 connectors
for use with LC11CS or LC12DCS wall plate call switches and LC372M remote intercom microphone. These standard
call switches provide four logic input functions as normal call, emergency call, lockdown acknowledge, and contractor
defined (i.e. CCTV or relay control). Four (4) relays are included; Relays 1 and 2 are for analog clock and time display
synchronization and two (2) are for contractor defined relay for ancillary system integration via Phoenix/Euro block con­nector.

The Sound Reinforcement Module also features four (4) auxiliary inputs; one (1) balanced input with mono summing on
the back of the receiver through Phoenix/Euro block connector and three (3) via RJ45 connector on the LC372AI audio
input plate- one (1) balanced XLR mic/line switchable, one (1) unbalanced stereo 3.5mm input with mono summing, and
one (1) unbalanced stereo RCA input with mono summing. A separate RJ45 is included for connection to an intercom
handset. A balanced, line level output is provided for connection to external audio amplifiers, hearing assistance sys­tems or recording devices.

Three infrared receivers can be connected to the amplifier to guarantee reliable connection and full coverage from the
wireless IR microphone.

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INSTALLATION INSTRUCTIONS LC372 SOUND REINFORCEMENT MODULE

The LC372SR is powered via Ethernet cable from a LANcom power injector located near the device or in a remote tele­communications closet along with other data switch and distribution equipment.

An internal fan and cabinet vents help keep the internal circuitry cool during operation.

Contractor setup software tools are provided for device configuration and DSP adjustment. The LC372SR is controlled
using standard web browsers on staff or administration computers. Controls include program input selection and volume
for all local inputs and the selected program source.

Wireless Microphone

The LC372SR classroom sound reinforcement module is designed to work with the AtlasLearn infrared microphone. The
versatile and ergonomic pendant/handheld microphone transmitter allows both teachers and students freedom of move­ment without bulky electronics or cumbersome wires. The dual mode transmitter allows teachers to control microphone
volume, overall system volume and mute settings via side mounted soft touch controls. In addition, when PANIC and
MODE controls are pressed simultaneously a contact closure is triggered that integrates with the rest of the IED LANcom
SCS to signal an emergency condition in the classroom.

The wireless microphone may be used in any of three configurations.

Handheld Separate LED clusters located on top and bottom of unit guarantee optimum

line of sight operation when the unit is handheld.

Lanyard Secure connection features a safety breakaway function for easy release in an

emergency and includes an innovative ID badge clip system.

Body Pack Allows hands free use with optional headset mic.

Charging Station

The SRM also comes with a charging station for charging up to two (2) pendant transmitters and four additional AA
rechargeable batteries simultaneously. The unit may be wall mounted via integral key hole slots or shelf mounted for
easy accessibility.

Mounting Options

The LC372SR has the ability to be surface, rack, wall, or pole mounted. Four (4) rubber feet are included for surface
mounting while other mounting options are accomplished with the use of one of the available optional kits:

LC372RMK Rack Mount Kit for SRM for equipment rack mounting in 1RU, 15” minimum

depth cabinets

LC372WMK Wall Mount Kit for SRM for bracket mounting to walls, cabinets, or other

vertical areas.

LC372PMK Pole Mount Kit for SRM for mounting on standard projector poles up to 2” in

diameter

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LC372SR SOUND REINFORCEMENT MODULE INSTALLATION INSTRUCTIONS

CONNECTIONS

LC372SR Sound Reinforcement Module

LC372SR

1

Figure 1 - LC372SR Front View

AUX AUDIO INPUT

+

-

S+-

S

+

-

S

+

-VM

SPKR

OUT

LINE

OUT

MUTE

POWER

FORM C RELAY OUTPUTS

NCNOCNCNOCNCNOCNCNO

C

ETHERNET/

IED MIDSPAN

Model# LANcom LC372SR

HANDSET

INTERFACE

AUX

INPUT

CALL SWITCHES

REMOTE MIC

IR RECEIVER INPUTS

3 4 52

7

8 9 10 11 12

6

Figure 2 - LC372SR Rear View

1. Power LED

This LED will illuminate when power is applied to the unit.

2. Call Switches and Remote Microphone RJ45 Ports

These ports are used to connect remote call switches (LC11CS or LC12DCS) or remote microphone modules
(LC372M) to the unit. This port provides access to the four (4) control lines available for the call switches. The
jumpers for each call switch determine which control line will be activated for each button. The four (4) control
lines are shared (wired in parallel) between both ports. The microphone input is a buffered input, allowing simul­taneous usage when a remote microphone module is connected to both ports. Both microphones are mixed to
provide a single combined audio signal. Only one (1) LC372M may be connected to each port.

PIN 1

Figure 3 - RJ45 Male Connector

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INSTALLATION INSTRUCTIONS LC372 SOUND REINFORCEMENT MODULE

Pin Function Cat5 Color Code

1 Audio + Orange /W
2 Audio - Orange
3 Switch out * Green /W
4 Switch out * Blue
5 Switch out * Blue/W
6 Switch out * Green
7 +48 VDC Brown /W
8 Ground Brown

* Signal pin is determined by jumper setting on

call switch plates.

Table 1 - Call Switch and Remote Microphone RJ45 Connector Wiring

3. Aux Input Port

This port is used to connect to an LC372AI Audio Input Plate. This plate provides three (3) additional inputs to the
system. Each plate contains the following inputs:

• One balanced XLR mic/line switchable input

• One unbalanced stereo input through a mono summing 3.5mm TRS jack

• One unbalanced stereo mono summed input through two (2) RCA jacks

Pin Function Cat5 Color Code

1 RCA Audio + Orange /W
2 RCA Audio – Orange
3 1/8” Jack Audio + Green /W
4 XLR Mic/Line Audio + Blue
5 XLR Mic/Line Audio – Blue/W
6 1/8” Jack Audio – Green
7 +48 VDC Brown /W
8 Ground Brown

Table 2 - RJ45 Connector Wiring

4. Handset RJ45 Port

This port is used to connect an LC21HS Intercom Handset. When the LC21HS is lifted off its cradle switch, the
intercom call switches into a private mode and disconnects the room microphone(s) and speaker and uses the
microphone and speaker in the handset for a private intercom conversation. Once the handset is returned to the
cradle switch, the room microphone(s) and speaker are restored.

Pin Function Cat5 Color Code

1 Handset Mic Output + Orange /W
2 Handset Mic Output – Orange
3 Hookswitch Out Green /W
4 Handset Earphone Input + Blue
5 Handset Earphone Input – Blue/W
6 Hookswitch Out Green
7 +48 VDC Brown /W
8 Ground Brown

Table 3 - Handset RJ45 Connector Wiring

5. IR Receiver Inputs

Up to three individual IR receivers can be connected to these ports to interface with the Atlas Learn IR micro­phones. These connectors can utilize the supplied cable or UL Listed RG59 coaxial cable with F-type fittings. The
maximum cable length is 10m (32.8’).

6. Power and Network RJ45 Port

This port is used to connect the LC372SR to the system network. It connects to the network through either an
LC41PI or LC48MPI Power Injector that provides 48VDC power to the device. Note that power is provided only
using the LC41PI or LC48MPI. This device is not compliant with PoE switches.

Pin Function CAT5 Color Code

1 Data Rx + Orange /W
2 Data RX – Orange
3 Data TX + Green /W
4 +48V DC Blue

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LC372SR SOUND REINFORCEMENT MODULE INSTALLATION INSTRUCTIONS

Pin Function CAT5 Color Code

5 +48V DC Blue/W
6 Data TX – Green
7 –48V DC (Ground) Brown /W
8 –48V DC (Ground) Brown

Table 4 - Power and Network RJ45 Connector Wiring

7. Aux Audio Input

This connector provides an input for a balanced or unbalanced stereo (or mono) audio source. Both inputs are
summed to mono and are controlled through the software. This input is ideal for connecting an audio source to
the system when it is permanently installed in the room.

8. Speaker Out

This connection is for the output of the power amplifier and used to connect to the local room loudspeaker or
loudspeakers. This output is for 25V loudspeakers and has a maximum power output of 30W.

NOTE: It is possible to use 70V loudspeakers with the 25V amplifier output, but the power factor for the transformer tap
will be 1/8 of the listed tap setting. For example, a 70V loudspeaker tapped at 100W will only draw a maximum of 12.5W
when connected to the 25V amplifier output.

9. Line Out

This is a balanced line level output that can be used to connect to an external audio amplifier, hearing assistance
system, or a recording device. The mix is the same as what is available at the speaker output, however this output
does have its own output level adjustment.

10. Mute

This is used to attach an external mute switch to the device. When a closure is present between the pins, all
messages, live announcements, intercom calls, and bells will be muted in the room. Emergency messages will
override the mute if it is active. This function is to give teachers the ability to place the system into a do not disturb
mode for student testing or other special situations.

11. Power

This terminal is not currently used and reserved for future implementation.

12. Relay Output Jack

The LC372SR has four Form C relays that are terminated at this connector. Relays 1 and 2 provide a momentary
contact closure used to synchronize the clock in the room to the system time. The exact time and duration for
this closure is globally configured in the control software at the headend. The functions of Relays 3 and 4 are
configured in the software.

Relay 1

FORM C RELAY OUTPUTS

NCNOCNCNOCNCNOCNCNO

C

ETHERNET/

IED MIDSPAN

Relay 2

Relay 3

Relay 4

Figure 4 - Relay Connector