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 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
DESCRIPTION
The Series 84LS is the low prole 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 Single Pole/Common Bus
SWITCH POSITION
IDENTIFICATION
.425
(10,80)
3.100 ± .020
(78,74 ± 0,51)
.750 (19,05) 3 EQ. SPS.
TOL. NON-ACCUM.
.425 (10,80)
.750 (19,05) 2 EQ. SPS.
TOL. NON-ACCUM.
.455 (11,56) SQ.
PRINTABLE AREA 2.350 ± .020
(59,69 ± 0,51)
.490
(12,45)
SQ.
.368 ± .015
(9,35 ± 0,38)
.267 ± .015
(6,78 ± 0,38)
.357 (9,07)
.207 (5,26)
.025 ± .002
(0,64 ± 0,05) SQ.
TERMINAL
PINS
1.650 (41,91)
.350
(8,89)
.800
(20,32)
1.500
(38,1)
.750
(19,05)
.525 (13,34)
.100 (2,54) TYP.
#6-32 MTG
STUD
4 PLACES
.098 (2,49) REF. TERMINAL
PIN HEADER
.100 (2,54) REF. TERMINAL
PIN HEADER
A B C D E F G
TERMINAL PIN
IDENTIFICATION
LABEL
1
4
7
10
2
5
8
11
3
6
9
12
1.650 (41,91)
.800
(20,32)
1.500
(38,1)
.750
(19,05)
.225 (5,72)
.100 (2,54) TYP.
#6-32 MTG
STUD
4 PLACES
.098 (2,49) REF. TERMINAL
PIN HEADER
.100 (2,54) REF. TERMINAL
PIN HEADER
A H B J C K D L E M F N G
TERMINAL PIN
IDENTIFICATION
LABEL
.350
(8,89)
4.500
114,3[]
1.125
28,58[]
R 4 PLACES.050
1,27[] SQ..660
16,76[]
SQ..455
11,56[]
.475
12,07[]
.563
14,29[]
3 EQ. SPS.
TOL. NON-ACCUM.
1.125
28,58[]
.202
5,13[]
.352
8,94[]
.302
7,67[]
SQ.
TERMINAL
PINS
.025
0,64[]
.313
7,94[]
3 PLACES
.500
12,7[]
3 PLACES SPS.
1.125
28,58[]
.500
12,7[]
3.875
98,43[]
REF.
TERMINAL
PIN HEADER
.100
2,54[]
1
23
4
A
B
CD
E
(ORIENTATED PER BOTTOM VIEW)
SWITCH POSITION
INDENTIFICATION
LABEL
#4-40 MTG
STUD
8 PLACES
TEMINAL PINS
PULLED IN THESE
LOCATIONS
1x4 Keyboard
Single Pole/Common Bus
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
4x4 Keyboard Matrix Output Single Pole/Common Bus
.098 (2,49) REF.
TERMINAL
PIN HEADER
.100 (2,54) REF.
TERMINAL
PIN HEADER
F
E
D
B
C
A
G
H
TERMINAL PIN
IDENTIFICATION
SWITCH POSITION
IDENTIFICATION
.425
(10,80)
3.100 ± .020
(78,74 ± 0,51)
.750 (19,05) 3 EQ. SPS.
TOL. NON-ACCUM.
.425 (10,80)
.750 (19,05) 3 EQ. SPS.
TOL. NON-ACCUM.
.455 (11,56) SQ.
PRINTABLE AREA 3.100 ± .020
(78,74 ± 0,51)
.490
(12,45)
SQ.
.368 ± .015
(9,35 ± 0,38)
.267 ± .015
(6,78 ± 0,38)
.357 (9,07)
.207 (5,26)
.025 ± .002
(0,64 ± 0,05) SQ.
TERMINAL
PINS
.775
(19,69)
.100
(2,54)
TYP.
.310
(7,87) 1.500
(38,1)
2.120
(53,85)
1.125
(28,58)
2.250
(57,15)
.750
(19,05)
.490 (12,45)
LABEL
#6-32 MTG
STUD
6 PLACES
1
5
9
13
2
6
10
14
3
7
11
15
4
8
12
16
.098 (2,49) REF.
TERMINAL
PIN HEADER
.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
.100
(2,54)
TYP.
.310 (7,87)
1.500
(38,1)
2.120 (53,85)
1.125
(28,58)
2.250
(57,15)
.750
(19,05)
.490 (12,45)
LABEL
#6-32 MTG
STUD
6 PLACES
.425
(10,80)
.425
(10,80)
.800
(20,32)
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 identied on the keyboard.
12 Button Keypads 16 Button Keypads
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
DIMENSIONS in inches (and millimeters)
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
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
4 Button Keypads
1
2
3
4
5
6
7
8
9
10
11
12 •
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
CODES
3x4
Matrix Single Pole/Common Bus
TERMINAL LOCATION
BUTTON LOCATION
C B A G F E D E C B F D A N K H M L J G
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1
2
3
4
CODES
1x4
PINS
TERMINAL
LOCATION
BUTTON
LOCATION
A B C D E
••••
•
•
•
•
CODES
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
4x4
Matrix Single Pole/Common Bus
TERMINAL LOCATION
BUTTON LOCATION
A B C D E F G H
D B A C H F E G K M L J P R Q N S
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1x1 Keyboard
1.125
±.020
.562
.562
1.125
±.020
.366 SQ.
BUTTON AREA
#4-40 MTG STUD (ALSO
SERVE AS TERMINALS)
.500
.500
.313
.313
LABEL
.490
SQ.
.500
.270
.362 ±.015
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
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
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.
Frequency Rating
MHz in dB
0.1 66.2
10 94.8
100 89.0
400 70.6
800 42.5
2,000 39.5
6,000 32.6
10,000 45.2
18,000 42.2
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
100
80
60
40
20
0
SHIELDING EFFECTIVENESS OF 84S-AC2
dB
0.1 10 100 400 800 2000 6000 10000 18000
MHz
Represents shielding effectiveness
greater than or equal to line.
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.
-112 -014 -113 -016
STANDARD LEGENDS
Available through Grayhill Distributors To order one of the congurations below, use the dash number shown here; select the keypad
size and code, and order the part number with the appropriate legend dash number.
ORDERING INFORMATION
12
3
45
6
78
9
0
AB
C
D
E
F
0
12
3
45
6
78
9
OPER
0
12
ABC
3
DEF
4
GHI
5
JKL
6
MNO
7
PRS
WXY
98
TUV
A
B
C
D
OPER
0
12
ABC
3
DEF
4
GHI
5
JKL
6
MNO
7
PRS
WXY
98
TUV
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
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.
HEADER CONNECTORS
Compatible with:
Samtec, Inc. Header Series
BCS, BSW, CES, ESW, ESQ,
SLW, SSW, SSQ, IDSS and
IDSD or equivalent.
Available from your local Grayhill Distributor.
For prices and discounts, contact a local
Sales Ofce, an authorized local distributor or
Grayhill.
12 3 4
AB C D
-301 -302
-201
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Grayhill:
84LS-AB2-112 84LS-AB2-112-N 84LS-AB2-113 84LS-AB2-113-N 84LS-AC2-112 84LS-AC2-112-N 84LS-AC2-113
84LS-AC2-113-N 84LS-BB2-014 84LS-BB2-014-N 84LS-BB2-016 84LS-BB2-016-N 84LS-BC2-014 84LS-BC2-
014-N 84LS-BC2-016 84LS-BC2-016-N 84LS-FC2-301 84LS-FC2-302-N 84LSN-AB2-112 84LSN-AB2-112-N
84LSN-AB2-113 84LSN-AB2-113-N 84LSN-AC2-112 84LSN-AC2-112-N 84LSN-AC2-113 84LSN-AC2-113-N
84LSN-BB2-014-N 84LSN-BB2-016 84LSN-BB2-016-N 84LSN-BC2-014 84LSN-BC2-014-N 84LSN-BC2-016
84LSN-FC2-302-N