Modular Keyboards
SERIES 82
Lightable
FEATURES
• 11/16" Between Button
Centers
• Long, Stroke, Wiping Contact
• Lightable Modules
• Choice of 5 Circuitries with
Unlighted Modules
• User Legendable
Lightable Modules
Unlighted Modules
.687
(17,45)
MOUNTING
C
L
.343
(8,71)
Build a custom keyboard with identical button horizontally mounted modules is not
distances no matter how you stack them. recommended;theorientationoftherectangular,
Designed to plug into any printed circuit board lighted area will differ. See drawings.
.531
(13,49)
SQ.
1
1
from /16" to /8" thick, modules stack in any
C
L
configuration, maintaining 11/16" button centers.
See Figure 1 Panel Cutout diagram for 6 button
module mounting dimensions. Refer to drawings
.687 (17,45)
.687 (17,45)
ForLightableModuleswhichwillbecontinuously for other module dimensions.
lit, mixing vertically mounted modules with
Figure 1 Panel Mount Cutout Diagram
LIGHTABLE MODULES
Light Source and Lamp Mounting
desoldering the keyboard module then
desoldering the lamp when it's necessary to
replace the light source.
Each lightable button fits over a T-1 size LED
or incandescent lamp mounted to PC board
(see Figure 2-2a). The height of the lamp
should not exceed .250" (6,35 mm) from the
The chart below lists ratings for a size T-1
surface of the board. (Note: Grayhill does not incandescent lamp. To extend the life of the
manufacture or sell LED's or incandescent lamp, use an alternating current and reduced
lamps).
voltage. The chart also lists maximum
temperatures the module can withstand. For
For easy light replacement, mount the lamp or higher temperatures, Grayhill offers modules
LED through the back or solder side of the made of special plastics, polyester switch
board (see Figure 2). This method of mounting
allows you to replace light source without
housing and polycarbonate internal button. All
measurements were determined under
removing the keyboard module. The other laboratory conditions. (Mounted model
method of light mounting (Figure 2a) requires continuously lit in temperature controlled oven
with continuously circulating air for 24 hours.)
Incandescent Lamp–Size T-1
Maximum
Allowable
Ambient
Max, Temp.
for Modules
With Special
Plastics
Intensity and
Mean Spherical
Number* Candle Power
Service
Life
Lamp
Current
Volts in Hours Per Lamp Temperature
715
680
Bright .15 MSCP
Moderate .03 MSCP 5 V
5 V
40,000
100,000
115 mA
60 mA
130°F
150°F
200°F
220°F
*Lamps not available from Grayhill.
.250
(6,35)
MAX.
Figure 2
Easy replacement
Figure 2a
Mounted from
mounting
component side
.170 (4,32)
Keypads
40
Grayhill, Inc.
• 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com