Standard Keypads
CoDe anD truth taBleS
Dots in the chart indicate connected terminals when switch is closed.
Terminals are identified on the keyboard.
12 Button Keypads
16 Button Keypads
3x4
1
2
3
4
5
6
7
8
9
10
11
12
CoDeS
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E C D A B F G K J B M L C N E D P G F A
•
terminal loCation
matrix
Single Pole/Common Bus
4x4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
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E F D C A B G H K L A B N M C D P R F E T U H G S
•
•
terminal loCation
matrix
CoDeS
Single Pole/Common Bus
Button loCation
SPeCiFiCationS
rating Criteria
rating at 24 Vdc: 10 milliamps, resistive
Contact resistance:
Compatible with MOS,
TTL and DTL (10 ohms maximum)
Voltage Breakdown: 250
Vac between mutually
insulated parts
life expectancy: 3,000,000 operations per
button
Contact Bounce: Less than 4 milliseconds at
make, 10 milliseconds at break
operating temperature:
-40°C to +80°C
Snap-on-Cap: Clear polycarbonate
Contact Dome:
Stainless steel, selectively
gold-plated
terminals: Phosphor bronze
materials and Finishes
housing:
Polycarbonate/ABS blend, black;
meets UL94V-O
Buttons:
ABS plastic, white. Legends are
black.
Button loCation
Keyboards and Keypads
C
8
4
0
operating Features
Button travel: 0.015" (0,38 mm) nominal total
travel
typical operating Force: 350 grams
StanDarD legenDS
Insertable legend version (legend numbers
-101 and -001) has a removable cap. The
revealed button surface can be legended by
an insert or a dry transfer of a blank legend
1
4
7
2
5
8
0
3
6
9
insert. This surface can also be ink stamped
by Grayhill in higher volume quantities. When
the cap is replaced, the assembly extends
approximately .015" (0,38 mm) above the surface.
1
ghi
aBC
The legend sheet information follows the legend
presentation. All other legends incorporate
molded-in (two shot) legends.
2
DeF
3
0
4
8
C
1
5
9
D
2
6
a
e
3
7
B
F
4
JKl
5
mno
6
PrS
7
tuV
8
WXY
9
OPER
0
-101
(Insertable)
D
9
5
1
e
a
6
2
F
B
7
3
-102
(Molded-in)
1
4
7
a
2
5
8
0
-103
(Molded-in)
3
6
9
B
C
D
e
F
1
4
7
a
-001
(Insertable)
2
5
8
0
3
6
9
B
F
e
D
C
1
ghi
-002
(Molded-in)
aBC
2
DeF
3
a
B
C
D
4
JKl
5
mno
6
PrS
7
tuV
8
WXY
9
OPER
0
-003
(Molded-in)
-004
(Molded-in)
-005
(Molded-in)
-006
(Molded-in)
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Standard Keypads
inSertaBle legenD SheetS
For use with -101 or -001 legend option.
Legends are die cut to fit button surface when
cap is removed. Dry transfer legends offer
some flexibility to customize the blank inserts
included on the sheet of popular legend letters,
words and symbols provided or on the insertable
legends sheet.
Description
Sheet of Legend Inserts
Dry Transfer Lettering, Small
Dry Transfer Lettering, Medium
Dry Transfer Lettering, Large
Part number
87aC2046
87-Dt-2096-088
87-Dt-2096-125
87-Dt-2096-187
For prices and discounts, contact a local Sales Office, an authorized local Distributor, or Grayhill.
type no.
and typical
height
4gh088
.083"
1gh125
.138"
3gh187
.207"
2gh250
.276"
Sample Style
and typical
Sizes
ABCDEFGH
Sub Surface
Character and
line limitations
4 Characters
2 Lines
3 Characters
1 Line
2 Characters
1 Line
END
DATA
top Surface
Character and
line limitations
4 Characters
2 Lines
3 Characters
1 Line
2 Characters
1 Line
2 Characters
1 Line
END
DATA
Keyboards and Keypads
PrinteD legenDS
For maximum Versatility
Printing allows you the flexibility to create your
own legend using whole words and symbols with
various type styles. Durable epoxy ink printing
bonds to the button cap surface. There are two
types of button cap printing:
top Surface Printing: Legend is applied directly
to the top of the button. Button is recessed slightly
below the keyboard housing.
Sub-Surface Printing:
For insertable legend
models. Provides maximum wear for printed
surfaces. Printed internal button cap is protected
by clear snap-on cap.
Printed typestyles:
The typestyle chart
illustrates type style, size and approximate
character limits for button caps. Grayhill's library
of typefaces includes most popular legends.
ABCDE
LAD
LAD
ABCD
ON
N/A
ON
ABC
N/A
15
orDering inFormation:
Special legends
orDering inFormation
grayhill Series number
Size option
A = 3x4
B = 4x4
Circuitry option
B1 = Matrix code
C1 = Single pole/common bus
Standard legend Choices
3x4 Size: -101, -102 or -103
4x4 Size: -001, -002, -003, -004, -005 or -006
Follow this procedure:
1. Basic Keyboard. Formulate the part number
with the exception of the legend suffix.
2. mounting.
Standard mounting is shown in
our dimensional drawings. These drawings
relate the terminal location to the button legend
orientation. It is possible to rotate the button
legends by 90°, changing the orientation.
When mounting the keypad, it would be rotated
90° to have the legends appear upright. A 3x4
keypad thus becomes a 4x3.
3. Color. Many colors, other than our standard
black housing, are available. Buttons can be
made from equivalent plastic in black, red,
green, blue and yellow. White legends are used
with dark color buttons, black with light ones.
Other colors available on special order.
4. Buttons. Legends can be printed on button
surface and protected by a snap-on cap in
a similar fashion to our insertable legend
types. A second option is printing a ‘blank’
button. (One that has the same dimensions
as a molded-in legend button with a flat top
surface.) Disadvantage is legend wear over
time. A third option is molded-in legends,
usually requiring tooling. Molded buttons are
available with a flat or concave top surface.
5. legends. Specify the legend requirements
for each button. Identify buttons per our
dimensional drawings. Caution if keypad has
been rotated.
84aB1–103
available from your local grayhill Distributor. For prices and discounts, contact a local Sales
Office, an authorized local Distributor or Grayhill.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
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