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Figure 5.

290A3080B

24 VDC

GROUND

REMOTE

AUDIO +

AUDIO

DRY CONTACT

24 VDC

GROUND

REMOTE

AUDIO +

AUDIO

DRY CONTACT

NEUTRAL

HOT

EARTH GND.

NEUTRAL

HOT

EARTH GND.

INTERCOM I

AD-28LD-MV MASTER

J2 J2

INTERCOM II

AD-28LD-MV SLAVE

MASTER/SLAVE INSTALLATION

1 WATT

Master Slave Installation

 Inthisinstallation,theMasterisconstantlybroadcastingaudiofromthe

 Slave.Pushingthelisten/talkswitchoneitherunitforcestheSlaveinto

 thelistenmodeandtheMasterintothetalkmode.TheMAS/SLAjumper

 mustbeplacedintheSLAmodeforthisoperationontheslaveunit.

Using Foot Switches

 Usingnormallyopen,simplecontactclosurefootswitches(customer

 supplied)allowsfortotalhandsfreeoperationofthelisten/talkfunctions.

Figure 6.

290A3081B

24 VDC

GROUND

REMOTE

AUDIO +

AUDIO

DRY CONTACT

24 VDC

GROUND

REMOTE

AUDIO +

AUDIO

DRY CONTACT

NEUTRAL

HOT

EARTH GND.

NEUTRAL

HOT

EARTH GND.

INTERCOM I

AD-28LD-MV MASTER

J2 J2

INTERCOM II

AD-28LD-MV SLAVE

USING FOOT SWITCHES

1 WATT

FOOT SWITCH

N.O.

FOOT SWITCH

N.O.

G. WIRING DIAGRAMS.

1 2 ... 6 7 8 9 10 11 12 13 14 15

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