Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois

60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Modular Keyboards

SERIES 87

Low Profile

FEATURES

• 1, 2, 3, 4, 5 and 6 Button Individual

Keyswitches

• 12 and 16 Button Keypads

Matter How You Mount Modules or

What Combination You Use

• Up to 3,000,000 Operations per

Button

• Low Profile Design

Legends For Any Need

Design Keyboards and Individual Keyswitches

to Virtually any Configuration Without Costly

Tooling.

Prototypes and small quantities: create your

own with economical, insertable legend style

modules.

Production quantities: choose either custom

printing or permanent molded-in legends.

One Button Module

Two Button Module

Snap Dome Contact System

Hear and feel button actuation

You're assured of reliable button actuation with

the metal snap-dome under each Series 87

button. When actuated, the dome changes

shape, providing audible and tactile feedback to

the operator.

BUTTON

HOUSING

PC BOARD

CIRCUIT

PATH

DOME

.366 ± .010

(9,30 ± 0,25)

SQ. BUTTON

A

.490 ± .010

(12,45 ± 0,25)

.025 ± .002

(0,64 ± 0,05)

SQ. TERMINAL

.350 ± .010

(8,89 ± 0,25)

.075 ± .010 TYP.

(1,91 ± 0,25)

.300 ± .010

(7,62 ± 0,25)

.095 ± .010

(2,41 ± 0,25)

.095 ± .010

(2,41 ± 0,25)

.064 ± .010 TYP.

(1,63 ± 0,25)

SWITCH KEY IDENTIFICATION

(FOR REF. ONLY)

.163 ± .010

(4,14 ± 0,25)

.015 ± .010

(0,38 ± 0,25)

BUTTON

PROJECTION

A

COMMON

TERMINAL I.D.

(FOR REF. ONLY)

TERMINAL PINS AT

BOTTOM OF SWITCH

A

B

.490 ± .010

(12,45 ± 0,25)

.366 ± .010

(9,30 ± 0,25)

SQ. BUTTON

.025 ± .002

(0,64 ± 0,05)

SQ. TERMINAL

.095 ± .010

(2,41 ± 0,25)

SWITCH KEY

IDENTIFICATION

(FOR REF. ONLY)

.350 ± .010

(8,89 ± 0,25)

.500 ± .010

(12,7 ± 0,25)

.990 ± .010

(25,15 ± 0,25)

.245 ± .010

(6,22 ± 0,25)

.163 ± .010

(4,14 ± 0,25)

.500 ± .010

(12,7 ± .010)

.300 ± .010

(7,62 ± 0,25)

.095 ± .010

(2,41 ± 0,25)

.075 ± .010

(1,91 ± 0,25)

.064 ± .010 TYP.

(1,63 ± 0,25)

.015 ± .010

(0,38 ± 0,25)

BUTTON

PROJECTION

A

B

COMMON

TERMINAL I.D.

(FOR REF. ONLY)

TERMINAL PINS AT

BOTTOM OF SWITCH

Keypads

46