Spec Sheet

DESCRIPTION
Model DG-25III is a 25 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-25III is supplied with 25 zone cards. When a sound
or disturbance occurs that is below the preset threshold
level, the nearest microphone detects the disturbance and
identifies the zone with a lighted LED that blinks GREEN.
When 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-25III 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. The Model DG-25III can be cascaded
up to 10 units for a total of 250 zones. All LOUROE
Microphones (Models 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-25III.
APPLICATION
Correctional Facilities
Stairwells
Elevator Cabs
Elevator Lobbies
Public Access Buildings
Hallways
Parking Structures
Juvenile Detention Centers
FEATURESFEATURES
+
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
12Vdc @ 4mA
-20 dB
100 Hz - 10kHz
0.5A @ 125 Vac
3 Seconds
50W (standby) 75W (max)
19"W x 7”H x 10¼”D
17.5 lbs. (7.95 lbs)
Finish Black anodized
MODEL DG-25III
COMPANION DG-MA
NOTE:
DG-25III requires
companion unit
Model DG-MA
Monitor/Talkback
Amplifier. Details on
back page.
EE
LL
OUROEOUROE
LECTRONICSLECTRONICS
6955 VALJEAN AVE, VAN NUYS, CA 91406
PH: [phone] / FAX: [phone]
[e-mail] / www.louroe.com
DG25III
ALARMING SOUND ACTIVATED BASE STATION
TECHNICAL DATA SHEET
2 Conductor shielded cable, 22
gauge with a 24 gauge drain wire
NOTE: Unshielded cable is not
satisfactory for audio systems
WIRING REQUIREMENTS
West Penn 452 or equivalent
If using microphone for one-way/listen only
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
If using microphone for two-way listen/talkback
DG-25III 1/08