Productos de la Marca Magnat Audio

Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Standard Keypads

Keyboards and Keypads

SERIES 82

Lightable

FEATURES

•

/16"BetweenButton

Centers

•Long,Stroke,WipingContact

•LightableModules

•Choiceof5Circuitrieswith

UnlightedModules

•UserLegendable

LIGHTABLE MODULES

Light Source and Lamp Mounting

EachlightablebuttontsoveraT-1sizeLEDor

incandescentlampmountedtoPCboard(see

Figure2-2a).Theheightofthelampshouldnot

exceed.250"(6,35mm)fromthesurfaceofthe

board.(Note:Grayhilldoesnotmanufactureor

sellLED'sorincandescentlamps).

Foreasylightreplacement,mountthelampor

LEDthroughthebackorsoldersideoftheboard

(seeFigure2).Thismethodofmountingallows

you to replace light source without removing

the keyboard module. The other method of

lightmounting(Figure2a)requiresdesoldering

the keyboard module then desoldering the

MOUNTING

Buildacustomkeyboard with identical button

distances no matter how you stack them.

Designed to plug into any printed circuit

board from

/16" to

/8" thick, modules stack

inanyconguration,maintaining

/16"button

centers.

ForLightableModuleswhichwillbecontinuously

Figure 1 Panel Mount Cutout Diagram

Lightable Modules Unlighted Modules

lit, mixing vertically mounted modules

with horizontally mounted modules is not

recommended;theorientationoftherectangular,

lightedareawilldiffer.Seedrawings.

SeeFigure1PanelCutoutdiagramfor6button

modulemountingdimensions.Refertodrawings

forothermoduledimensions.

lamp when it's necessary toreplace the light

source.

The chart below lists ratings for a size T-1

incandescentlamp.Toextendthelifeofthelamp,

useanalternatingcurrentandreducedvoltage.

Thechartalsolistsmaximumtemperaturesthe

modulecanwithstand.Forhighertemperatures,

Grayhilloffersmodulesmadeofspecialplastics,

polyester switch housing and polycarbonate

internal button. All measurements were

determined under laboratory conditions.

(Mountedmodelcontinuouslylitintemperature

controlledovenwithcontinuouslycirculatingair

for24hours.)

     Maximum Max, Temp.

Intensity and Service Allowable for Modules

Lamp Mean Spherical Life Current Ambient With Special

Number* Candle Power Volts in Hours Per Lamp Temperature Plastics

 715 Bright.15MSCP 5V 40,000 115mA 130°F 200°F

 680 Moderate.03MSCP 5V 100,000 60mA 150°F 220°F

*LampsnotavailablefromGrayhill.

Incandescent Lamp–Size T-1

Figure 2a

Mountedfrom

componentside

Figure 2

Easyreplacement

mounting

.250

(6,35)

MAX.

.170(4,32)

.531

(13,49)

SQ.

.687(17,45)

.343

(8,71)

.687

(17,45)