Standard Keypads
SerieS 84LS
Sealed, Low Profile
FeatureS
• Waterproof Silicone Rubber
• Easily Customized Legends
• Audible, Tactile Contacts
• Low Contact Resistance
• Optional RFI/EMI Shielding
• 3,000,000 Operations per Button
Keyboards and Keypads
DeScriPtion
The Series 84LS is the low profile version of Grayhill's
popular Series 84S sealed keypads. These keypads are
legended by epoxy ink printing the rubber key tops. Custom
legends and colors are available at a nominal cost. The
Series 84LS is offered with a choice of matrix or single
pole/common bus circuitries and EMI shielding.
DimenSionS
in inches (and millimeters)
3x4 Keyboard
.750 (19,05) 3 EQ. SPS.
TOL. NON-ACCUM.
SWITCH POSITION
IDENTIFICATION
.025 ± .002
(0,64 ± 0,05) SQ.
TERMINAL
PINS
matrix output
.100 (2,54) TYP.
.525 (13,34)
#6-32 MTG
STUD
4 PLACES
Single Pole/common Bus
.100 (2,54) TYP.
.225 (5,72)
#6-32 MTG
STUD
4 PLACES
1
4
2
5
8
11
3
6
9
12
3.100 ± .020
(78,74 ± 0,51)
.425
(10,80)
7
10
.490
(12,45)
SQ.
LABEL
1.500
.750 (38,1)
(19,05)
LABEL
1.500
.750 (38,1)
(19,05)
.425 (10,80)
.750 (19,05) 2 EQ. SPS.
TOL. NON-ACCUM.
.455 (11,56) SQ.
PRINTABLE AREA
.368 ± .015
(9,35 ± 0,38)
.267 ± .015
(6,78 ± 0,38)
2.350 ± .020
(59,69 ± 0,51)
.357 (9,07)
.207 (5,26)
.350
(8,89)
.800
(20,32)
1.650 (41,91)
.350
(8,89)
.800
(20,32)
1.650 (41,91)
.100 (2,54) REF. TERMINAL
PIN HEADER
.100 (2,54) REF. TERMINAL
PIN HEADER
TERMINAL PIN
IDENTIFICATION
A H B J C K D L E M F N G
.098 (2,49) REF. TERMINAL
PIN HEADER
1x4 Keyboard
TEMINAL PINS
PULLED IN THESE
LOCATIONS
TERMINAL PIN
IDENTIFICATION
A B C D E F G
.098 (2,49) REF. TERMINAL
PIN HEADER
E
D
C
B
A
(ORIENTATED PER BOTTOM VIEW)
Single Pole/common Bus
3.875
[ 98,43 ]
.352
[ 8,94 ]
.025 SQ.
[ 0,64 ]
TERMINAL
PINS
.500
[ 12,7 ]
3 PLACES
.100 REF.
[ 2,54 ]
TERMINAL
PIN HEADER
#4-40 MTG
STUD
8 PLACES
4.500
[ 114,3 ]
SWITCH POSITION .563
INDENTIFICATION [14,29 ]
1.125 3 EQ. SPS.
[ 28,58 ]
TOL. NON-ACCUM.
1.125
[ 28,58 ]
.455
SQ.
[11,56 ]
1
2
3
4
.500
[ 12,7 ]
R .050 4 PLACES
[ 1,27 ]
.660
SQ.
[ 16,76 ]
.202
[ 5,13 ]
.302
[ 7,67 ]
.475
[ 12,07 ]
.313
[ 7,94 ]
LABEL
1.125
[ 28,58 ]
3 PLACES SPS.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Standard Keypads
DimenSionS
in inches (and millimeters)
4x4 Keyboard
.750 (19,05) 3 EQ. SPS.
TOL. NON-ACCUM.
SWITCH POSITION
IDENTIFICATION
.025 ± .002
(0,64 ± 0,05) SQ.
TERMINAL
.100
PINS
(2,54)
TYP.
matrix output
.490 (12,45)
.750
(19,05)
#6-32 MTG
STUD
6 PLACES
Single Pole/common Bus
.490 (12,45)
.750
(19,05)
#6-32 MTG
STUD
6 PLACES
1
5
2
6
10
14
3
7
11
15
4
8
12
16
3.100 ± .020
(78,74 ± 0,51)
.425
(10,80)
9
13
.490
(12,45)
SQ.
2.250
(57,15)
1.125
(28,58)
.100
(2,54)
TYP.
2.250
(57,15)
1.125
(28,58)
.775
(19,69)
.800
(20,32)
.310 (7,87)
2.120 (53,85)
.425 (10,80)
.750 (19,05) 3 EQ. SPS.
TOL. NON-ACCUM.
.455 (11,56) SQ.
PRINTABLE AREA
.368 ± .015
(9,35 ± 0,38)
.267 ± .015
(6,78 ± 0,38)
.357 (9,07)
3.100 ± .020
(78,74 ± 0,51)
.207 (5,26)
.310
(7,87)
2.120
(53,85)
1.500
(38,1)
.425
(10,80)
LABEL
1.500
(38,1)
.425
(10,80)
LABEL
Keyboards and Keypads
.098 (2,49) REF.
TERMINAL
PIN HEADER
F
E
D
B
C
A
G
H
.098 (2,49) REF.
TERMINAL
PIN HEADER
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
1x1 Keyboard
1.125
±.020
.562
#4-40 MTG STUD (ALSO
SERVE AS TERMINALS)
.313
.500
TERMINAL PIN
IDENTIFICATION
.100 (2,54) REF.
TERMINAL
PIN HEADER
TERMINAL PIN
IDENTIFICATION
.100 (2,54) REF.
TERMINAL
PIN HEADER
1.125
±.020
.562
.490
SQ.
.500
.313
.366 SQ.
BUTTON AREA
.500
.270
.362 ±.015
LABEL
coDe anD truth taBLeS
The chart indicates the relationship of the terminal pins to each key switch.
The dot indicates a closed switch. Terminals are identified on the keyboard.
4 Button Keypads
12 Button Keypads
16 Button Keypads
1x4
BUTTON
LOCATION
CODES
BUTTON LOCATION
A B C D E
TERMINAL
LOCATION
•
•
•
BUTTON LOCATION
1
2
3
4
•
•
•
•
• •
••
PINS
3x4
1
2
3
4
5
6
7
8
9
10
11
12
CODES
•
•
•
•
•
• •
• •
•
•
•
Matrix
•
•
•
•
•
•
•
C B A G F E D E C B F D A N K H M L J G
TERMINAL LOCATION
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
• •
••
Single Pole/Common Bus
4x4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
•
•
•
•
•
•
•
•
•
•
• •
• •
•
•
•
•
•
•
Matrix
•
•
•
•
•
•
•
•
•
•
A B C D E F GH D B A C H F E G K M L J P R Q N S
TERMINAL LOCATION
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
• •
••
CODES
Single Pole/Common Bus
SPeciFicationS
rating criteria
rating at 24 Vdc:
≤
10 milliamps resistive
contact Bounce:
4 milliseconds maximum at
make; 10 milliseconds, at break
contact resistance:
MOS, TTL, and DTL
compatible. (10 ohms maximum)
operating temperature:
-55°C to 85°C
Life expectancy:
3 million operations/button
insulation resistance:
1,000 megohms
materials and Finishes
operating Features
Pre-travel:
.030 inches minimum
operating Force:
20 ± 4 ounces
humidity:
0 to 98% (no condensation)
minimum Push out Force Per Pin:
5 pounds
terminal Pins:
Copper alloy CDA 725
Pc Board:
FR-4 glass cloth epoxy
Dome retainer/rear Seal Sheet:
Polyester
mounting Studs:
Phosphor bronze
optional hex nut:
Stainless steel, passivated
optional emi Shield:
Aluminum foil
Keypad:
Silicone rubber
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Standard Keypads
Shielding effectiveness
Results shown are typical for a standard Grayhill
Series 84LS Keyboard. A conductive gasket will
generally increase the shielding, depending on
the size and shape of the gasket and its material.
Data derived for E-Field Radiation.
dB
100
80
60
40
ShieLDinG eFFectiVeneSS oF 84S-ac2
Frequency
mhz
0.1
10
100
400
800
2,000
6,000
10,000
18,000
rating
in dB
66.2
94.8
89.0
70.6
42.5
39.5
32.6
45.2
42.2
the frequency source that was radiated from the
transmitting antenna to the enclosed receiving
antenna. The spacing between antennas was
maintained constant throughout the frequency
range. The effectiveness rating is determined
by establishing a reference reading without
obstruction between the two antennas and
determining the difference between that reading
and the test setup reading.
note:
When measured in actual equipment, shielding
effectiveness is determined by many factors.
This method accurately represents the shielding
effectiveness of the Grayhill Series 84LS under
ideal test conditions.
20
0
0.1
10
100
400
800
MHz
Represents shielding effectiveness
greater than or equal to line.
2000
6000 10000 18000
test method:
Measurements were made with the keyboard
mounted to a brass plate, which in turn was
mounted to a shielded enclosure containing the
receiving equipment. A signal generator provided
Keyboards and Keypads
StanDarD LeGenDS
available through Grayhill Distributors
To order one of the configurations below, use the dash number shown here; select the keypad
size and code, and order the part number with the appropriate legend dash number.
1
4
7
2
5
8
0
3
6
9
1
4
7
A
2
5
8
0
3
6
9
B
C
D
E
F
1
GHI
ABC
2
DEF
3
1
GHI
ABC
2
DEF
3
A
B
C
D
4
JKL
5
MNO
6
4
JKL
5
MNO
6
PRS
7
TUV
8
WXY
9
PRS
7
TUV
8
WXY
9
OPER
0
OPER
0
-112
A
B
-014
C
D
1
2
-113
3
4
A
B
-016
C
D
1
2
3
-301
-302
will be matched as closely as possible. Allow
3 to 4 weeks for custom legend delivery. A
nominal charge, depending on the total quantity
of keypads ordered and the complexity of the
legend, will be assessed.
-201
cuStom LeGenDS
Any reasonable legend can be printed in the
key area. Fax a sketch of your requirements to
Grayhill. Printing and symbols will be coordinated
in keeping with concepts of good design. Or, if
required, the details of your submitted artwork
heaDer connectorS
compatible with:
Samtec, inc.
Header Series
BCS, BSW, CES, ESW, ESQ,
SLW, SSW, SSQ, IDSS and
IDSD or equivalent.
orDerinG inFormation
Grayhill Series number
Shielded or non-Shielded option
S = Shielded
SN = Non-Shielded
Size option
A = 3x4 B = 4x4 C = 1x1 F = 1x4
circuitry option
B2 = Matrix in-line pins C2 = Single pole/common bus, in-line pins
84LS-ac2-113-n
mounting nut option
N = Provided with hex nuts for mounting
Blank = Nuts not provided
Standard Legend choices
3x4 Size, choose -112 or -113
4x4 Size, choose -014 or -016
1x4 Size, choose -301 or -302
1x1 Size, choose -201
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
available from your local Grayhill Distributor.
For prices and discounts, contact a local
Sales Office, an authorized local distributor or
Grayhill.
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Embedded System
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