1825PM Duet Plus Loud Ringer


Item Description
High performance low frequency loud phone ringer compatible with dry contact closure events, analog telephones, and Nortel Digital Telephones including Norstar, BCM, Meridian 1, and CS 1000.
Power supply Adapter included;
22V 350 mA Class II
Maximum wire distance 500 feet (150m) for remote power using 24 gauge wire
Sound pressure level 93 dBA, 500 Hz 3.3 ft (1m) using internal speaker; 112 dBA, 500 Hz 3.3 ft (1m) typical with 1185 Horn speaker
Warble frequency Adjustable 290/360 Hz to 770/960 Hz typical, 4 to 12 Hz modulation
Output power
(for external speaker)
6 W peak, 3.5 Wrms continuous into 8 Ohms
Output impedance (for external speaker) 8 Ohm in power mode, 10kOhm in line driver mode
Dry contact closure Detection with 10Vdc 1 mA
resistive circuit
90V ring detection REN 0.8, LN=6; ring start 40Vrms; ring stop 27Vrms
Low voltage detection Detects external 3 to 60V dc or ac
Paging input 600 Ohm balanced and isolated
Paging input level Selectable, 0 dBm (HI) or
–18 dBm (LO)
Audio detection -43 to +12 dBm adjustable
Dimensions 5-3/8"(H) x 3-1/8"(W) x 1-5/8"( D); 137 x 79 x 41mm


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1825 Duet Plus - Dimensions

1825 Duet Plus Loud Ringer


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