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9

Connecting Speakers

1.

Locate and mount all speakers in accordance with the floor plan drawing for this installation.

2.

Connect each speaker to the appropriate home run or speaker-to-speaker wiring scheme as shown on the wiring plan (see
Figure 11).

3.

Test speaker wiring for short circuits to ground and across speaker terminals.

4.    Measure the resistance of each home run wire run with an ohmmeter. Any pair indicating a value of less than 16 Ohms -

D300A, 49 Ohms - D100A  and 122 Ohms - D40 must be rechecked for possible shorted wiring or speakers. Correct any
problems and retest prior to turning on amplifier.

VALCOM

AMPLICENTER D300A

SPEAKER TO SPEAKER METHOD

HOME RUN METHOD

AMPLICENTER D300A

VALCOM

Note: If paging zones use the talkback feature (Available only when used with PagePac

®

 Plus Controller), cabling must be shielded

and grounded at the AmpliCenter connector, not the speaker. Maximum 2 speakers per zone with talkback.

Figure 11.  Speaker Run Methods.

Summary of Contents for PagePac Plus AmpliCenter D100A

Page 1: ...y use attachments accessories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use cau...

Page 2: ...t least four inches space above and below for proper ventilation PRIOR TO TURNING ON POWER CHECK SPEAKER WIRING MAKE SURE WITH AN IMPEDANCE METER THAT FROM EITHER SPEAKER WIRE TO CONDUIT BUILDING GROU...

Page 3: ...more than one speaker cable is routed to the AmpliCenter a connector block may be necessary Refer to sample wiring diagrams page 9 Figure 11 Consult the 70V wire gauge guide page 4 Figure 5 for more s...

Page 4: ...ined output in watts for all speakers on a line Find that value at the bottom of the chart Follow the nearest vertical line up to its intersection with a diagonal wire size line Follow the horizontal...

Page 5: ...hone system With a microphone and preamp hook the mic switch to C1 and Gnd and the microphone output to Tip and Ring Note Mic requires V 9939A for preamp and contact closure Figure 7 Host Telephone Sy...

Page 6: ...e in a normal manner Your voice should be heard from all connected speakers The AmpliCenter Page input has an automatic level control ALC which keeps loud voices and normal voices output at the same l...

Page 7: ...witch not set correctly for host telephone system Ground start Tip and Ring reversed or AmpliCenter not grounded Audio signal not reaching speakers Check wiring at AmpliCenter Verify Page Accessed LED...

Page 8: ...able from 50Hz Full CCW to 400Hz Full CW 5 Music In Left and or Right channels with ground Paging In redundant paging input same as page in RJ11 Ground C1 Tip and Ring 70V Out Balanced output used for...

Page 9: ...run with an ohmmeter Any pair indicating a value of less than 16 Ohms D300A 49 Ohms D100A and 122 Ohms D40 must be rechecked for possible shorted wiring or speakers Correct any problems and retest pri...

Page 10: ...es the interconnection of two or more AmpliCenters Figure 12 AmpliCenter Interface with PagePac Plus Controller V 5323100 Note If the AmpliCenter is used with the PagePac Plus Controller refer to the...

Page 11: ...has a 600 Ohm input impedance When a trunk is accessed a momentary ground is sent to the ringside of the pair by the host equipment loop current is detected and the tip side of the pair is closed Dis...

Page 12: ...and Noise Less than 8dB below rated output 20Hz to 20kHz bandwidth unweighted Telephone Paging Access Automatic Level Control 15 1 compression ratio above 15dBm input Gain Below Limiting Knee 56dB AL...

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