Dil ID: 9
Dil Adı: germany
Dil Kodu: de7tayfun Produkte der Marke Magnat Audio
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Elektronik Bilgi Kütüphanesi
Anasayfa > Marken > Magnat Audio > Drucker > Keypads 87 Series
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
SPECIFICATIONS
Rating
Rating at 24 Vdc:10milliamps,resistive
Contact Resistance:MOS,CMOS,TTL,DTL
compatible(10ohmsmaximum)
Voltage Breakdown:250Vacbetweenmutually
insulatedparts
Insulation Resistance:1,000megohmsmin.
Life Expectancy:3,000,000operationsper
button
Contact Bounce:Lessthan4millisecondsat
make,10millisecondsatbreak
Materials and Finishes
Housing:ABSpolycarbonate,black
Buttons: ABS plastic, white. Legends are
black.
Snap-On-Cap:Clearpolycarbonate
Contact Dome: Stainless steel, selectively
gold-plated
Terminals: Phosphorbronze
Operating Features
Button Travel: 0.011" (0,28) nominal, total
travel
Operating Temperature:-40°Cto+80°C
Typical Operating Force:300grams
Mounting: Mounts to
1
/32" to
1
/8" thick PC
board
CIRCUITRY, CODE AND TRUTH TABLES
Circuitry for Module Strips
Theone-buttonthrusix-buttonmoduleshave
single pole/common buscircuitryas shown
inthecircuitdiagram.Thecommonislocated
underbuttonA;itisnotmarkedontheactual
product.
Code and Truth Table
Dotsinthechartindicateconnectedterminals
whenswitchisclosed.Terminalsareidentied
onthekeyboard.
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CODES
3x4
Matrix
Single Pole/Common Bus
TERMINAL LOCATION
BUTTON LOCATION
KDEBCLMKHAJCBMEFLNGD
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CODES
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4x4
Matrix
Single Pole/Common Bus
TERMINAL LOCATION
BUTTON LOCATION
MNGFDEPQKNBALMDCQPFGSREHJ
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Termination ininches(andmillimeters)
4x4 Matrix Output Single Pole/Common Bus
COMMON
UNDER
BUTTONA
CIRCUITDIAGRAM
A
B
C
.163 ± .010
(4,14 ± 0,25)
.500 ± .010
(12,7 ± 0,25)
1.000 ± .010
(25,4 ± .010)
.695 ± .010
(17,65 ± 0,25)
.100
(2,5)
TYP.
BUTTON
NO. 1
.163 ± .010
(4,14 ± 0,25)
.025 ± .002
(0,64 ± 0,05)
Sq. Terminals
.500 ± .010
(12,7 ± 0,25)
1.000 ± .010
(25,4 ± .010)
.795 ± .010
(20,19± 0,25)
.100
(2,5)
TYP.
BUTTON
NO. 1
.300 ± .010
(7,62 ± 0,25)
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GQ
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.800 ± .010
(20,32 ± 0,25)
.025 ± .002
(0,64 ± 0,05)
Sq. Terminals
MATRIX TERMINAL PIN-OUT SINGLE POLE/COMMON BUS
TERMINAL PIN-OUT
.300
D
E
F
G
.100 TYP
1.000
M
N
P
Q
.800
.100 TYP
1.000
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