Algo - 1825 Powerful Low Frequency Duet Plus Auxiliary Ringer & Paging Amplifier


$135.00

1825 Powerful Low Frequency Duet Plus Auxiliary Ringer & Paging Amplifier

The Algo 1825 Duet Plus is a high performance low-frequency loud ringer compatible with most business telephone systems in office and industrial applications. The unit is compatible with dry contact closure, analog telephones, and Nortel digital telephones including Norstar, Business Communication Manager (BCM), Meridian 1, and Communication Server 1000 (CS 1000).

ALGO 1825 Powerful Low Frequency Duet Plus Auxiliary Ringer & Paging Amplifier


The Algo 1825 Duet Plus is a high performance low-frequency loud ringer compatible with most business telephone systems in office and industrial applications. The unit is compatible with dry contact closure, analog telephones, and Nortel digital telephones including Norstar, Business Communication Manager (BCM), Meridian 1, and Communication Server 1000 (CS 1000).

Loud ringing can be activated by a relay or switch closure (dry contacts), low voltage detection, 90V analog telephone ringing, or any Nortel TDM digital business telephone.

ALGO 1825 Powerful Low Frequency Duet Plus Auxiliary Ringer & Paging Amplifier


  • Low frequency tone output provides effective non-irritating notification of telephone and paging signals
  • Interfaces easily with optional Algo 1185 Horn Speaker to provide increased ringing or voice notification volume (up to 112 dBA SPL at 1m (3.3ft.))
  • Adjustable volume and frequency controls to suit user preferences
  • Dry contact activation from push-button, door-opening controller, or KSU Night Bell/Auxiliary Ring contacts
  • Easy connectivity to BCM Media Services Card using optional 2503 BCM Connector Kit
  • Auxiliary speaker outputs for connection to existing paging systems
  • Convenient 90 volt ring detection with inputs for Tip and Ring
  • Operational from the headset jack of Norstar and selected Meridian 1 station sets
  • Visual Ring indication with optional 1126 Strobe Light or 1127 Visual Alerter
  • Designed for easy wall-mounting
  • Power supply included

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