84LS Keypad Series

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
Matrix Output
.750 (19,05) 3 EQ. SPS.
TOL. NON-ACCUM.
3.100 ± .020
(78,74 ± 0,51)
.425
(10,80)
.100 (2,54) TYP.
.525 (13,34)
SWITCH POSITION
IDENTIFICATION
1
2
3
4
5
6
7
8
9
10
11
12
.490
(12,45)
SQ.
.368 ± .015
(9,35 ± 0,38)
.267 ± .015
(6,78 ± 0,38)
.425 (10,80)
TEMINAL PINS
PULLED IN THESE
LOCATIONS
1x4 Keyboard
#6-32 MTG
STUD
4 PLACES
1.500
.750 (38,1)
(19,05)
1.500
.750 (38,1)
(19,05)
LABEL
.800
(20,32)
.350
(8,89)
.350
(8,89)
1.650 (41,91)
.357 (9,07)
.207 (5,26)
2.350 ± .020
(59,69 ± 0,51)
.100 (2,54) TYP.
.225 (5,72)
#6-32 MTG
STUD
4 PLACES
.025 ± .002
(0,64 ± 0,05) SQ.
TERMINAL
PINS
LABEL
.750 (19,05) 2 EQ. SPS.
TOL. NON-ACCUM.
.455 (11,56) SQ.
PRINTABLE AREA
Single Pole/Common Bus
1.650 (41,91)
.100 (2,54) REF. TERMINAL
PIN HEADER
.100 (2,54) REF. TERMINAL
PIN HEADER
TERMINAL PIN
IDENTIFICATION
TERMINAL PIN
IDENTIFICATION
A H B J C K D L E M F N G
A B C D E F G
.098 (2,49) REF. TERMINAL
PIN HEADER
.098 (2,49) REF. TERMINAL
PIN HEADER
E
D
C
B
A
(ORIENTATED PER BOTTOM VIEW)
Single Pole/Common Bus
4.500
[ 114,3 ]
SWITCH POSITION
INDENTIFICATION
.563
[14,29 ]
.455
SQ.
[11,56 ]
R .050 4 PLACES
[ 1,27 ]
Keypads
14
3.875
[ 98,43 ]
2
3
.500
[ 12,7 ]
3 PLACES
.352
[ 8,94 ]
1.125 3 EQ. SPS.
[ 28,58 ]
TOL. NON-ACCUM.
1
.800
(20,32)
4
.025 SQ.
[ 0,64 ]
TERMINAL
PINS
1.125
[ 28,58 ]
.660
SQ.
[ 16,76 ]
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
.202
[ 5,13 ]
.302
[ 7,67 ]
.475
[ 12,07 ]
.100 REF.
[ 2,54 ]
TERMINAL
PIN HEADER
#4-40 MTG
STUD
8 PLACES
.500
[ 12,7 ]
.313
[ 7,94 ]
LABEL
1.125
[ 28,58 ]
3 PLACES SPS.
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Standard Keypads
DIMENSIONS
In inches (and millimeters)
4x4 Keyboard
Matrix Output
.750 (19,05) 3 EQ. SPS.
TOL. NON-ACCUM.
3.100 ± .020
(78,74 ± 0,51)
.425
(10,80)
.490 (12,45)
SWITCH POSITION
IDENTIFICATION
1
5
6
7
8
9
10
11
12
13
14
.025 ± .002
(0,64 ± 0,05) SQ.
TERMINAL
.100
PINS
(2,54)
TYP.
4
3
2
.490
(12,45)
SQ.
.490 (12,45)
#6-32 MTG
STUD
6 PLACES
.750
(19,05)
2.250
(57,15)
.750 (19,05) 3 EQ. SPS.
TOL. NON-ACCUM.
.357 (9,07)
3.100 ± .020
(78,74 ± 0,51)
.310
(7,87)
.425
(10,80)
1.500
(38,1)
1.125
(28,58)
1.500
(38,1)
LABEL
2.120
(53,85)
.425
(10,80)
.310 (7,87)
LABEL
2.120 (53,85)
.098 (2,49) REF.
TERMINAL
PIN HEADER
.207 (5,26)
.100 (2,54) REF.
TERMINAL
PIN HEADER
.098 (2,49) REF.
TERMINAL
PIN HEADER
TERMINAL PIN
IDENTIFICATION
F
E
D
B
C
A
G
H
.100 (2,54) REF.
TERMINAL
PIN HEADER
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
TERMINAL PIN
IDENTIFICATION
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
•
•
•
•
• •
••
A B C D E
TERMINAL
LOCATION
1
2
3
4
5
6
7
8
9
10
11
12
Matrix
•
•
•
•
•
•
•
•
•
•
• •
•
•
•
Single Pole/Common Bus
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
• •
••
C B A G F E D E C B F D A N K H M L J G
TERMINAL LOCATION
16 Button Keypads
4x4
BUTTON LOCATION
BUTTON
LOCATION
1
2
3
4
CODES
3x4
BUTTON LOCATION
CODES
PINS
1x4
12 Button Keypads
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CODES
Single Pole/Common Bus
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
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
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
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
Materials and Finishes
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
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Keypads
15
Keyboards and Keypads
.368 ± .015
(9,35 ± 0,38)
.267 ± .015
(6,78 ± 0,38)
2.250
(57,15)
.800
(20,32)
16
15
#6-32 MTG
STUD
6 PLACES
.750
(19,05)
.100
(2,54)
TYP.
1.125
(28,58)
.775
(19,69)
.425 (10,80)
.455 (11,56) SQ.
PRINTABLE AREA
Single Pole/Common Bus
Standard Keypads
Frequency
MHz
0.1
10
100
400
800
2,000
6,000
10,000
18,000
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
SHIELDING EFFECTIVENESS OF 84S-AC2
80
Rating
in dB
66.2
94.8
89.0
70.6
42.5
39.5
32.6
45.2
42.2
provided 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.
60
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
40
Keyboards and Keypads
20
0
0.1
10
100
400
800
2000
6000 10000 18000
MHz
Represents shielding effectiveness
greater than or equal to line.
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.
ABC
DEF
ABC
DEF
1
2
3
1
2
3
D
GHI
JKL
MNO
GHI
JKL
MNO
4
5
6
4
5
6
9
E
PRS
TUV
WXY
PRS
TUV
WXY
7
8
9
7
8
9
B
F
1
2
3
1
2
3
C
4
5
6
4
5
6
7
8
9
7
8
A
0
0
-112
-014
301
OPER
OPER
0
0
-113
B
C
D
-016
302
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
A
HEADER CONNECTORS
submitted artwork 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.
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 = 1x4
Circuitry Option
B2 = Matrix in-line pins C2 = Single pole/common bus, in-line pins
Available from your local Grayhill Distributor.
For prices and discounts, contact a local Sales
Office, an authorized local distributor or Grayhill.
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
Keypads
16
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com