Louroe Electronics DG-12II Specsheet

DG-12II

6955 VALJEAN AVE, VAN NUYS, CA 91406

SOUND ACTIVATED BASE STATION

PH: [phone] / FAX: [phone]

DESCRIPTION

Model DG-12II is a 12 zone alarming sound activated audio
monitoring base station. When combined with companion
unit DG-MA (Listen/Talkback Amplifier) and interfaced with
remote speaker/microphones, it provides a sound activated
duress audio system with two-way communications. Each
zone has a variable threshold level control, based on
frequency and sound pressure level, and a variable alarm
delay (from 0.1 to 3.2 seconds) that can be set by using the
built-in tester(included) for alarm audio and time delay.
The time delay feature is effective in reducing false alarms.
The DG-12II is supplied with 12 zone cards. When a
sound or disturbance occurs that is below the preset
threshold level, the nearest microphone detects the sound
and identifies the zone with a lighted LED that blinks
GREEN. If the sound increases, the LED intensifies to a
solid GREEN. If it exceeds the preset threshold, the zone
goes into alarm, with the zone LED changing to RED, along
with a 3 second beep. A relay contact closes to activate a
camera or other annunciation. The person at the remote
station can communicate hands-free with personnel at the
base station. The person at the DG-12II can talk/listen with
the remote station by pressing the zone switch. Talkback to
the remote station is with a hand-held microphone
(provided) that is connected to the companion DG-MA
Listen/Talkback Amplifier. Zone alarm can be cancelled by
automatic or manual reset feature. Automatic re-set can run
between 3 sec and 3 minutes. All LOUROE Microphones
(A, B, C, D, D-V, E, K and L-DT) and all
Speaker/Microphones (Models TLI, TLM, TLMC, TLO,
TLSP and TLSP-PB) are compatible with the DG-12II.

APPLICATION

Parking Structures

Correctional Facilities

Public Access Buildings

Juvenile Detention Centers

WIRING REQUIREMENTS

2 Conductor shielded cable, 22
gauge with a 24 gauge drain wire

NOTE: Unshielded cable is not

satisfactory for audio systems

West Penn 452 or equivalent

FOR ONE-WAY LISTEN APPLICATIONS

/ [e-mail]

Elevator Cabs
Elevator Lobbies

Stairwells

Hallways

COMPANION DG-MA

Monitor/Talkback amplifier
provides:

6Two-way listen/talkback

between base station
& remote units

6“All-Call” for addressing all

zones simultaneously
(12 zones maximum)

6Input/output to DVR/VCR for

audio recording & playback

TECHNICAL DATA SHEET

MODEL DG-12II

FEATURES

+

19” Rack mountable

+

Variable threshold level control based on frequency and
sound pressure

+

Bi-color LED (each zone). GREEN when monitoring, RED
when in alarm

+

Variable alarm delay control (from 0.1 to 3.2 seconds)

+

NO/NC relay contacts for each zone for activating camera
or other annunciations

+

Two threshold level settings - HIGH (night) and LOW (day)

+

DAY and NIGHT threshold sensitivity switch

+

Automatic or manual reset for alarm cancellation: auto
reset variable from 3 sec to 3 min.

+

Built-in tester for alarm audio and time delay

+

Zone expansion (for up to six microphones or
speaker/microphones per zone using Model

MLA-6 Mixer)

SPECIFICATIONS

Power requirements
for microphone

Input sensitivity @ alarm
frequency

Monitor output frequency
Relay contact
Alarm tone duration
Power consumption
Size
Weight
Finish Black Anodized

WIRING REQUIREMENTS

4 Conductor consisting of:

+

2 Conductor shielded, 20 gauge
with 22 gauge drain (microphone
connection)

+

2 Conductor unshielded, 18 gauge

(speaker connection)

All in the same jacket

West Penn 356 or equivalent

12Vdc @ 4mA

-20 dB

100 Hz - 10kHz

0.5A @ 125 Vac
3 Seconds
42W (standby) 60W (max)
19 W x 7 H x 10¼ D" ” ”

16.5 lbs. (7.48 Kg)

For two-way talk/listen applications

dg_12II 4/14

BASE STATIONS

L

OUROE

E

LECTRONICS

ALARMING AUDIO BASE STATION - SOUND ACTIVATED

DG -12II

ARCHITECTS AND CONSULTING ENGINEERS SPECIFICATIONS

The Audio Monitoring System shall be Louroe Electronics Model DG-12II or approved equal. It shall consist of an audio
base station with a 19” standard rack mountable chassis, 7” in height. As a 12 zone base station, it will process electret
condenser, omni-directional microphones with a frequency response of 40 Hz to 15 kHz ± 1dB. Speakers used as
microphones shall not be acceptable. The alarming audio base station shall provide an adjustable threshold level and
variable alarm delay (from 0.1 seconds to 3.2 seconds) per zone. All 12 zones will be constantly listening. Systems
that utilize zone scanning shall not be acceptable. Up to six microphones or speaker/microphones (with no more than
4 being speaker/microphones) may be combined for zone expansion, using a Louroe MLA-6 Mixer. (*) Unit provides
two-way communication between the base station and the remote station (speaker/microphone). Normal output to the
speakers shall be 20W.

THE FOLLOWING FEATURES AND FUNCTIONS SHALL BE PROVIDED:

+

NO or NC dry contacts (each zone) for activation of a camera or other annunciation

+

Two continuously variable threshold levels, high and low, for day/night operation

+

Three second audio alert tone when a zone goes into alarm

+

Variable alarm delay per zone from 0.1 second to 3.2 second (adjustable)

+

LED zone alarm identification

+

Bi-color LED. GREEN for monitoring, RED for alarm

+

Three-position selector switch for MONITOR - OFF - TALKBACK with spring return to OFF

+

DAY/NIGHT threshold sensitivity switch

+

Automatic or manual reset for alarm cancellation. Auto reset variable between 3 sec and 3 min.

COMPANION MONITOR/TALKBACK AMPLIFIER, MODEL DG-MA, SHALL PROVIDE THE FOLLOWING:

+

DG-MA is used in conjunction with the DG-12II for providing two-way communication and “All Call”

+

3” speaker for monitoring audio

+

Hand-held microphone for talkback

+

ALL-CALL switch for addressing all 12 zones simultaneously. (Maximum of 12 zones)

+

LED indicator when talkback circuit is in use

+

20W output, 70V line

+

Input/Output to DVR/VCR or other recorder for audio recording and playback

+

Volume control for monitor and talkback

+

Headphone jack

+

Self contained power supply - 110 Vac

IMPORTANT NOTICE

When this equipment is used as part of an
audio monitoring system, the law requires
that the public be given notice of AUDIO
MONITORING ON THE PREMISES. A
deca l n otice is included with each
microphone shipped.

Federal Law References:
Federal Regulations, US Code, Title 18.
Crime and Criminal Procedure, Sec 2510.

AUDIO

MONITORING

On

These Premises

OUROE

L

LECTRONICS

E

R

U

T

E

D

C

A

I

F

U

N

A

M

N

T

H

E

LOUROE ELECTRONICS, 6955 VALJEAN AVE., VAN NUYS, CA 91406 [phone] FAX [phone]

www.louroe.com / [e-mail]

DG-12 II page 2 of 2

DG-12II 1/08