1825PM Duet Plus Analog Loud Ringer

Analog Loud Ringer for Telephone Loud Ringing & Alert Notification – 24V

The Algo 24V 1825PM Duet Plus Analog Loud Ringer is a high performance low-frequency speaker for noisy or areas  where telephone ringing is difficult to hear. The Duet Plus can also help to avoid missed calls due to a hearing impairment or where hearing protection is worn.

The speaker features 90V analog telephone ringing via an RJ11 modular jack for interface to a CO line or to a telephone system FXS port or ATA. A telephone system night bell contact closure can also activate the Duet Plus, while systems only providing low voltage can be detected by the loud ringer as well.

  • Telephone loud ringing and alerting.
  • Convenient 90 volt ring detection via an RJ11 modular jack. Low voltage detection also supported.
  • Dry contact activation from a PBX night bell / auxiliary ring contact, Algo doorphone controllers, push button or sensor.
  • Low frequency warble tone output provides effective non-irritating alerting up to 93 dBA at 1m.
  • Adjustable volume and frequency controls to suit user preferences.
  • Avaya IPO connectivity directly to an FXS port for “wet” paging for small or quiet area coverage where a single speaker is adequate.
  • Auxiliary speaker output for connection to existing amplifier / public address (PA) system.
  • Easy connectivity to Avaya IP Office using optional 2503 Wiring Kit.
  • Optional 1186 Analog Horn Speaker available to provide increased volume for higher ambient noise environments and outdoor locations. With the addition of the horn speaker the Duet generates sound pressure up to 112 dBA at 1m.
  • Combine visual alerting with 1128 Analog Strobe Light or 1127 Visual Alerter activated via the Duet’s speaker output.
  • Ideal for loud ringing and alerting in a small warehouse, machine shop, garage, yard, farm, car lot, etc.
  • Product dimensions: 5.4″ x 3.1″ x 1.6″ (13.7cm x 7.9cm x 4.1cm)

 

The 1825PM Duet Plus is UL/CSA and FCC certified. The Duet includes a 24V power supply, in addition to the 2501 Modular Cord for headset interface to a legacy Nortel digital telephone (i.e., M7208/M7310/M7324 OR T7208/7316). Note: No other telephones support headset interface for the Duet Plus.

Product Resources
Product MSRP: $165.00 US

Features

  • Convenient 90 volt ring detection via an RJ11 modular jack
  • Avaya IPO connectivity directly to an FXS port for “wet” paging
  • Auxiliary speaker output for connection to existing amplifier/paging systems
  • Dry contact activation from push-button, Algo doorphone controllers, or PBX Night Bell/Auxiliary Ring contacts
  • Easy connectivity to Avaya IP Office using optional 2503 BCM Connector Kit
  • Visual Ring indication with optional 1128 Analog LED Strobe Light or 1127 Visual Alerter
  • Low frequency tone output provides effective non-irritating notification of telephone and paging signals
  • Interfaces easily with optional 1186 Horn Speaker to provide increased loud ringing or voice paging volume
  • Adjustable volume and frequency controls to suit user preferences
  • Designed for easy wall mounting

Specifications

Min Typ Max Unit
Supply Voltage 12 24 26.9 Vdc
Supply Current
(using internal speaker) 160 mA
(8 O load at 9 W) 500 mA
(16 O load at 5 W) 400 mA
Output power to auxiliary speaker (no clipping) 6.0 Watts
Dry contact closure detection
Contact and loop resistance 0 2 kΩ
Open circuit voltage 5 Vdc
Loop current 1 10 mA
Low voltage detection circuit
Input impedance 4 kΩ
DC voltage input range 3 30 Vdc
AC voltage input range 3 30 Vrms
Telephone ring detection
Ring detect voltage 20/25 Hz 20 Vrms
Input impedance 50 kΩ
Audio/Paging input
Input impedance 600
Page input level (HI) 0 dbm
Page input level (LO) – 18 dbm
Audio detection level – 43 + 12 dbm
Output sound pressure at 1 m
Internal speaker only 93 dba
Typical 8 O horn speaker 112 dba
Output warble frequency
High tone 360 960 Hz
Low tone 290 770 Hz
Modulation 4 12 Hz
Environmental/Mechanical
Rated for indoor use 0 to + 40° C (32 to 104° F); 10-95% RH non-condensing
Dimensions (Product): 5.4″ x 3.1″ x 1.6″(13.7cm x 7.9cm x 4.1cm)
Weight (Product): 0.5 lbs (0.23 kg)
Weight (Shipping): 1.0 lbs (0.45 kg)

Applications

Loud ringing / night bell requirements for:

  • Machine Shops
  • Small Warehouses
  • Outdoor Yards or Car Lots (using 1186 Horn Speaker accessory)
  • Farms
  • Lunch Rooms
  • Hearing Impaired

Ordering Guide

Description Product Code
Duet Plus Analog Loud Ringer 1825PM
Analog Horn Speaker – Outdoor Rated (optional) 1186