Related Manuals for Algo 1825 Duet Plus
Summary of Contents for Algo 1825 Duet Plus
- Page 1 1825 Duet Plus Installation Guide Algo Communication Products Ltd. www.algosolutions.com 90-00046B - 1 -...
-
Page 2: Table Of Contents
Connecting to a Paging Amplifier ....... 22 CO or FXS Port Loud Ringing ......24 Multiple Speakers ........26 Application Tips & Recommendations ..28 Warranty and Repair ........30 Duet Plus Accessories ......... 32 Related Algo Product ........32 - 2 -... -
Page 3: Release 2 Updates - Feb. 2012
Release 2 Updates - Feb. 2012 The 1825 Duet Plus ringer has been updated for 2012. All features of the original Duet Plus are maintained and the same inputs and outputs are provided. The following lists the most important changes affecting installers:... -
Page 4: Quick Install For Dry Contact Ringing
Quick Install for Dry Contact Ringing Mount the unit and connect power Step 1 to the 24 VDC terminals. The power supply is usually located in the equipment room with power and control contacts provided through separate pairs in the cable from the equipment room. -
Page 5: About The Duet Plus
The Duet Plus must be mounted in a dry indoor location. Outdoor locations can be alerted with an external water proof horn speaker such as the Algo 1185 (See “Duet Plus Accessories” on page 32.) The Duet Plus cabinet is opened by inserting a screwdriver into the slot near the top of the cover and prying gently upwards while lifting the cover. - Page 6 a 3 or 4 pair 24 AWG station cable. That leaves additional pairs for dry contact closure and/or paging audio from the telephone equipment. Wiring to 8 Ω speakers should be low resistance for maximum audio power. If extra wire pairs are available, make use of them to reduce speaker wiring resistance.
-
Page 7: Inputs And Outputs
Inputs and Outputs Connection Description/Function 24VDC Input Power supply input. 12 to 27 volts DC, polarity insensitive. Maximum current with internal speaker 160 mA, with typical 8 Ω horn speaker 500 mA. RELAY Input Trigger circuit to detect dry contact closure for connection to auxiliary ringing or night bell contacts (normally open). -
Page 8: Inside Diagram
Inside Diagram RJ11 Telephone Jack Green Power PAGE OVER-CURRENT Red Overcurrent TONE TEST Fig. 1 - Inside Diagram of the Duet Plus - 8 -... -
Page 9: Option Jumpers
Option Jumpers High level input paging signal (0 to +12 dBm) Low level input paging signal (-18 to 0 dBm) Maximum gain for very low input levels. Use for audio detection ap- plication only. Audio input signal routed to detection circuit. -
Page 10: Block Diagram
Block Diagram Pre-Amp J1 DET Audio Input Relay Contact Detect Audio 10VAC Voltage Detect Detect Ring Detect Warble Oscillator Tone SPKR Power Internal Speaker 32 OHM Fig. 2 - Block Diagram of the Duet Plus All inputs (including power) are polarity insensitive. - 10 -... -
Page 11: Duet Plus Specifications
Duet Plus Specifications Unit Supply Voltage 26.9 Supply Current (using internal speaker) (8 Ω load at 9 W) (16 Ω load at 5 W) Output power to auxiliary speaker (no clipping) Watts Dry contact closure detection Contact and loop resistance kΩ... -
Page 12: Applications
Applications Dry Contact Office Ringer This application represents the most common application for the Duet Plus. The night bell or auxiliary ring contacts (make and common) are connected to the RELAY terminals of the Duet Plus. Whenever the contacts operate, the Duet Plus will provide a warble sound from the internal speaker. - Page 13 PAGE OVER-CURRENT TONE TEST Fig. 3 - Dry Contact Office Ringer - 13 -...
-
Page 14: Loud Or Outdoor Dry Contact Ringer
The SPKR terminals provide access to 100% of the power. For outdoor applications, a weatherproof horn speaker (such as Algo’s 1185) can be mounted on an outside wall, while the Duet Plus is located safely indoors. Besides keeping the Duet Plus dry, this also makes tone and volume adjustment or other maintenance easier. - Page 15 24 Vdc 24 Vdc Power Power Supply Supply Telephone System Night Bell or Auxiliary Ring Contacts PAGE OVER-CURRENT 8 Ohm Horn Speaker TONE TEST Fig. 4 - Loud or Outdoor Dry Contact Ringer - 15 -...
-
Page 16: Loud Ringer And Paging
Loud Ringer and Paging Once a Duet Plus has been successfully installed as a loud ringer with external speaker, the option is available to add voice paging without any requirement for additional equipment. Simply connect the dry or wet page port from the telephone system to the AUDIO INPUT terminals of the Duet Plus. - Page 17 PAGE OVER-CURRENT TONE TEST Paging Volume Fig. 5 - Loud Ringer and Paging - 17 -...
-
Page 18: Nortel/Avaya Digital Station Set Ringer
Nortel/Avaya Digital Station Set Ringer A Duet Plus can be configured to detect audio signal and activate warble tones when a particular threshold is reached. The most common application of this feature is to detect the ringing on Nortel/Avaya TDM phones that provide ring signal to the headset jack. - Page 19 PAGE OVER-CURRENT TONE TEST Fig. 6 - Nortel/Avaya Digital Station Set Ringer - 19 -...
-
Page 20: Visual Alerting
Visual Alerting A Duet Plus can provide a visual indication of ringing by the connection of an Algo 1126 Strobe or 1127 Visual Alerter to the SPKR terminals. Whenever the Duet Plus is activated, the strobe or alerter will activate. The most common application... - Page 21 May be installed if audible alert desired in addition to visual alert PAGE OVER-CURRENT TONE TEST Fig. 7 - Visual Alerting - 21 -...
-
Page 22: Connecting To A Paging Amplifier
Ensure that the Duet Plus is operating from a ground isolated power supply as provided by Algo to avoid ground loops with the paging amplifier or telephone system. - 22 -... - Page 23 PAGE OVER-CURRENT TEST TONE Fig. 8 - Connecting to a Paging Amplifier - 23 -...
-
Page 24: Co Or Fxs Port Loud Ringing
CO or FXS Port Loud Ringing The telephone ring detection circuit is used behind FXS (analog station ports or ATAs) as well as for direct connection to CO (Central Office) telephone lines. Connection is made to the internal RJ11 jack. The following example shows the Duet Plus functioning as a loud ringer connected to an FXS port and also a page port from the telephone... - Page 25 Port RJ11 Telephone Jack 8 Ohm Horn Speaker Paging PAGE Outputs OVER-CURRENT TONE TEST Fig. 9 - CO or FXS Port Loud Ringing and Paging - 25 -...
-
Page 26: Multiple Speakers
Multiple Speakers How many speakers may be attached to the Duet Plus? The answer depends on the power required, speaker impedance, and wiring resistance. The Duet Plus was intended for ONE speaker, typically a horn speaker located on a warehouse, machine shop, or outdoors or a wall baffle cone speaker for quieter indoor areas. - Page 27 Fig. 10 - Speaker Wiring Arrangements and Typical Output Power The above power values are typical and assume no wiring losses. - 27 -...
-
Page 28: Application Tips & Recommendations
• The Duet Plus contains a protective device that clamps all power supply voltages above 27 V. The power supply provided by Algo was selected specifically for the Duet Plus but if an alternate power supply is used, ensure that it does not supply more than 27 V at a load of 50 mA. - Page 29 • If a Duet Plus is mounted over a drywall mounting plate that protrudes above the wall surface, then the ribs on the bottom of the Duet Plus by the mounting holes may be cut to provide a flush fit around the perimeter of the Duet Plus.
-
Page 30: Warranty And Repair
(i.e. 1203 for the third week of 2012). To return a product to Algo for repair, please contact the repair center for a Ticket Number and instructions prior to shipment. All product returned for repair should be shipped freight prepaid. - Page 31 This page intentionally left blank. - 31 -...
-
Page 32: Duet Plus Accessories
8180 SIP Audio Alerter - The 8180 SIP Audio Alerter is a SIP compliant PoE network audio device for loud ring and voice paging applications. www.algosolutions.com/8180 Algo Communication Products Ltd. 4500 Beedie Street Burnaby, BC Canada V5J 5L2 www.algosolutions.com - 32 -...
Need help?
Do you have a question about the 1825 Duet Plus and is the answer not in the manual?
Questions and answers