Atkinson Dynamics AD-27 Spécifications télécharger pdf (Page 9)

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three-positionterminalblock(J2)intheClassIwiringcompartment.

The signal lines, remote control lines, remote power, and call dry con-

tactsarelandedinaseven-positionterminalblock(J7)intheClassII

wiring compartment. The two wiring sections are isolated by a ﬁshpa-

per barrier.

WARNING

Disconnectpowertotheintercombeforeanyinstallation,

maintenance, or conﬁguration changes are performed.

 TherearethreejumpersshownonthePCboardinFigure7that

may need to be moved depending on the desired operation of the

intercom.J4andJ5areforoperatingtheintercomineitherabal-

anced signal line or unbalanced signal line conﬁguration. These must

be moved together as a pair. They are factory set in the balanced line

position.J3isforconguringtheintercomaseitheramasterorslave

device. The intercom is factory set in the master position.

There is a switch on the board, in the Class I wiring compart-

ment,toconguretheoperationoftheboardfrom120Vacto240Vac.

Theswitchisfactorysetfortheintercomtooperateon120Vac(see

gure3).

 Seegures5through12fortypicalintercomcongurations.

F. SERVICE.

CAUTION

Anymaintenancemustbeperformedbyatrainedelectrician

in accordance with NEC guidelines and local codes.

1. General.

CAUTION

The call signal is substantially louder than normal voice mes-

sagesbeingcarriedontheline.Donotdepressthecallswitch

while carrying on a conversation with someone on the system.

This will subject the listener to very loud sound levels.

  FederalSignalwillserviceyourequipmentorprovidetechni-

cal assistance with any problems that cannot be handled locally.

  AnyunitsreturnedtoFederalSignalforservice,inspection,or

repairmustbeaccompaniedbyaReturnMaterialAuthorization.

ThisR.M.AcanbeobtainedfromthelocalDistributororManufac-

turer’sRepresentative.

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Atkinson Dynamics AD-27 Spécifications Page 9