keyboards and keypads grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com modular keyboards series 87 low profile features 1, 2, 3, 4, 5 and 6 button individual keyswitches 12 and 16 button keypads maintain 1 / 2 " button centers, no 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. dimensions in inches (and millimeters) 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
keyboards and keypads grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com modular keyboards dimensions in inches (and millimeters) three button module four button module five button module six button module a b c .499 .010 (12,45 0,25) . 3 66 .010 (9, 3 0 0,25) s q. button .025 .002 (0,64 0,05) s q. terminal .095 .010 (2,41 0,25) s witch key identification (for ref. only) .500 (12,7) 2 eq. s p s . tol. non-accum. .010 (0,25) . 3 50 .010 ( 8 , 8 9 0,25) .16 3 .010 (4,14 0,25) .500 (2,7) 2 eq. s p s . tol. non-accum. .010 (0,25) .095 .010 (2,41 0,25) .075 .010 (1,91 0,25) .064 .010 typ. (1,6 3 0,25) 1.499 .010 ( 3 7, 8 5 0,25) .245 .010 (6,22 0,25) . 3 00 .010 (7,62 0,25) .015 .010 (0, 38 0,25) button projection a b c common terminal i.d. (for ref. only) terminal pin s at bottom of s witch a b c d .499 .010 (12,45 0,25) . 3 66 .010 (9, 3 0 0,25) s q. button .025 .002 (0,64 0,05) s q. terminal .095 .010 (2,41 0,25) s witch key identification (for ref. only) .500 (12,7) 3 eq. s p s . tol. non-accum. .010 (0,25) . 3 50 .010 ( 8 , 8 9 0,25) .16 3 .010 (4,14 0,25) .500 ( 2,7 ) 3 eq . s p s . tol. non-accom. .010 (0,25) .095 .010 (2,41 0,25) .075 .010 (1,91 0,25) .064 .010 typ. (1,6 3 0,25) 1.99 8 .015 (50,55 0, 38 ) .245 .010 (6,22 0,25) . 3 00 .010 (7,62 0,25) .015 .010 (0, 38 0,25) button projection a b c d common terminal i.d. (for ref. only) terminal pin s at bottom of s witch a b c d e .499 .010 (12,45 0,25) . 3 66 .010 (9, 3 0 0,25) s q. button .025 .002 (0,64 0,05) s q. terminal .095 .010 (2,41 0,25) s witch key identification (for ref. only) . 3 50 .010 ( 8 , 8 9 0,25) .16 3 .010 (4,14 0,25) .095 .010 (2,41 0,25) .075 .010 (1,91 0,25) .064 .010 typ. (1,6 3 0,25) 2.49 8 .015 (6 3 ,25 0, 38 ) .500 ( 12,7 ) 4 eq . s p s . tol. non-accum. .010 (0,25) .245 .010 (6,22 0,25) .500 (2,7) 4 eq. s p s . tol. non-accum. .010 (0,25) . 3 00 .010 (7,62 0,25) .015 .010 (0, 38 0,25) button projection b a cd e common terminal i.d. (for ref. only) terminal pin s at bottom of s witch a b c d e f .499 .010 (12,45 0,25) . 3 66 .010 (9, 3 0 0,25) s q. button .025 .002 (0,64 0,05) s q. terminal .095 .010 (2,41 0,25) s witch key identification (for ref. only) . 3 50 .010 ( 8 , 8 9 0,25) .16 3 .010 (4,14 0,25) .095 .010 (2,41 0,25) .075 .010 (1,91 0,25) .064 .010 typ. (1,6 3 0,25) .500 (2,7) 5 eq. s p s . tol. non-accum. .010 (0,25) . 3 00 .010 (7,62 0,25) 2.99 8 .015 (75,95 0, 38 ) .500 (12,7) 5 eq. s p s . tol. non-accum. .010 (0,25) .245 .010 (6,22 0,25) .015 .010 (0, 38 0,25) button projection b acdef common terminal i.d. (for ref. only) terminal pin s at bottom of s witch keypads 47
keyboards and keypads grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com modular keyboards dimensions in inches (and millimeters) 3x4 keyboard termination in inches (and millimeters) 3x4 matrix output single pole/common bus dimensions in inches (and millimeters) 4x4 keyboard 1 2 3 4 5 6 7 8 9 10 11 12 . 3 66 .010 (9, 3 0 0,25) s q. button .500 .010 (12,7 0,25) 2 eq. s p s .tol. non- accum. row 1 row 2 row 3 row 4 col 1 col 2 col 3 s witch key identification (for ref. only) .245 .010 (6,22 0,25) .500 .010 (12,7 0,25) 3 eq. s p s . tol. non- accum. . 3 50 .015 ( 8 ,90 0,25) 1.500 .010 ( 3 7, 8 5 0,25) 2.000 .010 (50,55 0,25) .695 .010 (17,65 0,25) .060 .010 (1,52 0,25) typ. retaining s tud s button no. 1 col = column .025 .002 (0,64 0,05) sq . termin a l s 2.000 + .000 ? .005 (50,8 ? 0,13) 1 2 3 5 6 7 9 10 11 13 14 15 4 8 12 16 switch key identification (for ref. only) .366 .010 (9,30 0,25) sq. button .500 .010 (12,7 0,25) 3 eq. sps.tol. non- accum. .250 .010 (6,35 0,25) .500 .010 (12,7 0,25) 3 eq. sps. tol. non- accum. .350 .010 (8,90 0,25) .163 .010 (4,14 0,25) 2.000 + .000 ? .005 (50,8 ? 0,13) .064 .010 (1,63 0,25) typ. .100 (2,5) typ. retaining studs button no. 1 row 1 row 2 row 3 row 4 col 1 col 2 col 3 col 4 col = column .025 .002 (0,64 0,05) sq. terminals .163 .010 (4,14 0,25) .495 .010 (12,57 0,25) .500 .010 (12,7 .010) .895 .010 (22,73 0,25) .100 (2,5) typ. .163 .010 (4,14 0,25) .163 .010 (4,14 0,25) .495 .010 (12,57 0,25) .500 .010 (12,7 .010) .100 (2,5) typ. button no. 1 button no. 1 b c d em l k .300 .010 (7,62 0,25) .600 .010 (15,24 0,25) .025 .002 (0,64 0,05) sq. terminals . 3 00 b c d e k l m .100 typ .500 .600 a b c d h j k .100 typ .500 l m n e f g s ingle pole/common bu s terminal pin-out matrix terminal pin-out keypads 48
keyboards and keypads grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com modular keyboards specifications rating rating at 24 vdc: 10 milliamps, resistive contact resistance: mos, cmos, ttl, dtl compatible (10 ohms maximum) voltage breakdown: 250 vac between mutually insulated parts insulation resistance: 1,000 megohms min. life expectancy: 3,000,000 operations per button contact bounce: less than 4 milliseconds at make, 10 milliseconds at break materials and finishes housing: abs polycarbonate, black buttons: abs plastic, white. legends are black. snap-on-cap: clear polycarbonate contact dome: stainless steel, selectively gold- plated terminals: phosphor bronze operating features button travel: 0.011" (0,28) nominal, total travel operating temperature: -40c to +80c typical operating force: 300 grams mounting: mounts to 1 / 32 " to 1 / 8 " thick pc board circuitry, code and truth tables circuitry for module strips the one-button thru six-button modules have single pole/common bus circuitry as shown in the circuit diagram. the common is located under button a; it is not marked on the actual product. code and truth table dots in the chart indicate connected terminals when switch is closed. terminals are identified on the keyboard. 1 2 3 4 5 6 7 8 9 10 11 12 codes 3x4 matrix single pole/common bus terminal location button location k d e b c l m k h a j c b m e f l n g d 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 m n g f d e p q k n b a l m d c q p f g s r e h j termination in inches (and millimeters) 4x4 matrix output single pole/common bus common under button a circuit diagram a b c .163 .010 (4,14 0,25) .500 .010 (12,7 0,25) 1.000 .010 (25,4 .010) .695 .010 (17,65 0,25) .100 (2,5) typ. button no. 1 .163 .010 (4,14 0,25) .025 .002 (0,64 0,05) sq. terminals .500 .010 (12,7 0,25) 1.000 .010 (25,4 .010) .795 .010 (20,19 0,25) .100 (2,5) typ. button no. 1 .300 .010 (7,62 0,25) d e f gq p n m a b c d e f g h js r q p n m l k .800 .010 (20,32 0,25) .025 .002 (0,64 0,05) sq. terminals matrix terminal pin-out s ingle pole/common bu s terminal pin-out . 3 00 d e f g .100 typ 1.000 m n p q . 8 00 .100 typ 1.000 k l m n p q r s e f g h a b c d j keypads 49
keyboards and keypads grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com modular keyboards type no. sample style sub surface top surface and typical and typical character and character and height sizes line limitations line limitations 4gh088 . 083" 1gh125 . 138" 3gh187 . 207" 2gh250 . 276" abc abcd abcde abcdefgh 4 characters 2 lines 3 characters 1 line 2 characters 1 line n/a n/a 4 characters 2 lines 3 characters 1 line 2 characters 1 line 2 characters 1 line 1 5 o n lad end data o n lad end data ordering information type of module part or legend number 1 button 87cc3-201 2 button 87dc3-201 3 button 87ec3-201 4 button 87FC3-201 5 button 87gc3-201 6 button 87hc3-201 12 button?matrix 87ab3-201 12 button? sp/com bus 87ac3-201 16 button?matrix 87bb3-201 16 button? sp/com bus 87bc3-201 insertable legend card 87ac2046 dry transfer?small 87-dt-2096-088 dry transfer?medium 87-dt-2096-125 dry transfer?large 87-dt-2096-187 available from your local grayhill distributor. for prices and discounts, contact a local sales office, an authorized local distributor or grayhill. special legends to order non-standard modules, information is required for the areas listed below. your special order will be assigned a part number for future identification. this number is sequentially assigned and is non-descriptive. 1. type of module. 1, 2, 3, 4, 5, 6, 12 or 16 button. 2. mounting orientation. horizontal or vertical. 3. circuitry. single pole/common bus is standard for all single row modules. for 12 or 16 button keyboard, specify single pole/common bus or matrix. 4. housing color. standard housing is black. optional stock colors include beige and gray. 5. button types. flat or concave buttons are available for molded legends; flat, concave, and snap-on cap styles are available for printed legends. 6. button color. standard buttons for molded and printed legends are white with black legend. other colors available include white legends with red, green, dark blue, dark gray and black buttons, or black legends with yellow, blue, light gray, beige and white buttons. additional legend colors such as red are also available. 7. legend style. two-shot molded or printed. printed legends may be top or sub-surface printed. 8. actual legend. specify for each button using the button identification on drawings. price? contact grayhill. standard legends insertable style modules for prototypes and small quantities standard insertable legend modules are an economical way to create your own keyboard legend. just remove the clear button cap, add any legend, and replace the snap-on cap. legend inserts for insertable legend modules give your keyboard modules the appearance of being printed without the cost. self-adhesive, printed legend inserts are die cut to fit the buttons. legend sheet includes commonly used symbols, terms, alpha characters a-z, and numeric characters 0-99 in news gothic condensed typestyle, printed in black on clear backing. legend sheets also include blank inserts for dry transfer lettering. 87 series legend sheet part no. 87ac2046 dry transfer legends for additional legend inserts sheets include a thru z in upper and lower case, the numeric characters 0 thru 9, as well as commonly used symbols. the typestyle and size are similar to the chart for printed legends shown below. small print part no. 87-dt-2096-088 medium print part no. 87-dt-2096-125 large print part no. 87-dt-2096-187 special legends printed legends for medium volume or short runs virtually any character, symbol or pattern which can be photographed can be printed on the button. grayhill uses epoxy ink which bonds to the surface of the button. the legend can be printed on either of two surfaces: the top surface of a one-piece button, or the internal surface on the snap-on cap style for maximum wear. the typestyle chart shows the style and the approximate limitations of grayhill's standard type. however, limitations differ with the surface to be printed and the actual characters to be used. if your legend exceeds the chart limits, contact grayhill for more information. unless specified, black legends are printed on white buttons. additional ink color : white ink is stocked for use on dark colored buttons. additional button colors : for a molding charge, we can provide buttons from other colors which we may have in stock, such as black, red, green, blue, or yellow. non-stock button/ink colors may require minimum material purchase. to order, or to check currently stocked colors, con tact grayhill. molded-in legends for high volume production for legends that will stand up to abuse and constant wear for the life of your keyboard, use molded-in legends. the two-shot molding process molds the legend and button together. your special legend can be made from existing grayhill molds or we can tool special ones. buttons are available with black legends molded in white or other light backgrounds, or with white legends molded into dark backgrounds. see printed buttons, additional button colors. to order, contact grayhill. keypads 50
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