Standard Keypads SerieS 88 Sealed, Flange mounted FeatureS • Sealed Keyboard • Colorful Graphic Overlay • Audible, Snap-Dome Contact • User Legendable Styles • 3,000,000 Operations per Button • Optional Panel Seal Gasket to Protect Your Equipment K e y bo DimenSionS in inches (and millimeters) a r d s a 3x4 Keyboard nd .600 ± .010 .500 ± .010 (12,7 ± 0,25) .128 ± .010 K (15,24 ± 0,25) (2 EQ. SPS.) TOL. NON- (3,25 ± 0,25) eyp .150 ± .005 ACCUM. .072 ad (3,81 ± 0,13) R. SWITCH KEY ± .010 .280 ± .010 s IDENTIFICATION (1,83 (7,11 ± 0,25) (FOR REF. ONLY) ± 0,25) .750 ± .010 (19,05 ± 0,25) 1 2 3 ROW 1 .025 ± .002 (0,64 ± 0,05) 2.690 + .000/ 4 5 6 ROW 2 - .010 SQUARE .500 .010 TERMINAL (68,33 + .000/ ((132 E,7Q ±. S0P,2S5)) 7 8 9 ROW 3 - 0,25) TOL. NON- ACCUM. 10 11 12 ROW 4 .380 (9,65) SQ. TYP. 1 2 3 L L L .055 ± .010 O O O .105 ± .010 C C C (1,40 ± 0,25) .360 ± .010 (2,67 ± 0,25) (9,14 ± 0,25) 1.990 + .000 - .010 (50,55 + .000 - 0,25) BUTTON AREAS ARE EMBOSSED COL = COLUMN termination in inches (and millimeters) Code and truth table 3x4 2.200 ± .015 Dots in the chart indicate connected terminals (55,88 ± 0,38) when switch is closed. Terminals are identified on 2.000 ± .010 the keyboard. (50,8 ± 0,25) .100 ± .010 .100 (2,54) BUTTON NO. 1 (2,54 ± 0,25) TYP. .(029,336 ± ± . 000,153) 3x4 CoDeS matrix Single Pole/Common Bus DIA. 4 PLS. 1 • • • • A B C F G H L M N 2 • • • • .220 ± .010 n 3 • • • • ±±3( 7. 00.60,03,12085 ) ±(±27 . 018.0,,02110520 ) RSTEU(T5AD,5ISN9 I±N G25,4) on loCatio 45678 •• •• • ••• •• • • • • • ••••• tt 9 • • • • Bu1101 • • •• • • •• 12 • • • • F E D K J H G J E A K F B L G C M H D N .200 ± .010 terminal loCation (5,08 ± 0,25) C LOF 2.200 (55,88) DIM. 1.200 .600 .100 .100 TYP. TYP. ABCDEFGHJ KLMN DEFGHJ K SINGLE POLE COMMON BUS TERMINAL MATRIX TERMINAL PIN-OUT Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Standard Keypads SerieS 88 Sealed, Flange mounted FeatureS • Sealed Keyboard • Colorful Graphic Overlay • Audible, Snap-Dome Contact • User Legendable Styles • 3,000,000 Operations per Button • Optional Panel Seal Gasket to Protect Your Equipment K e DimenSionS in inches (and millimeters) yb o a r 4x4 Keyboard d .(61050,2 ±4 .±0 100,25) .(530 E0Q ±. .S0P10S .()1 T2O,7L ±. N0O,2N5)- .(132,285 ± ± . 001,205) s an .(135,801 ± ± . 000,153) R. ACCUM. SI(DFWOEINRTT CRIHFEI FCK.EA OYTNI OLNY) .±(±01 7.0,082,123 05 ) .(278,101 ± ± . 001,205) d Keypad s .750 ± .010 (19,05 ± 0,25) 1 2 3 4 ROW 1 .025 ± .002 (0,64 ± 0,05) 2.690 + .000/ 5 6 7 8 ROW 2 - .010 SQUARE .500 .010 (68,33 + .000/ TERMINAL (12,7 ± 0,25) 9 10 11 12 ROW 3 - 0,25) (3 EQ. SPS) TOL. NON- ACCUM. 13 14 15 16 ROW 4 .380 (9,65) SQ. TYP. 1 2 3 4 L L L L .055 ± .010 O O O O .105 ± .010 C C C C (1,40 ± 0,25) .360 ± .010 (2,67 ± 0,25) (9,14 ± 0,25) 2.490 + .000 - .010 (63,25 + .000 - 0,25) BUTTON AREAS ARE EMBOSSED COL = COLUMN termination in inches (and millimeters) Code and truth table 4x4 2.700 ± .010 Dots in the chart indicate connected terminals when switch (68,58 ± 0,25) is closed. Terminals are identified on the keyboard. 2.500 ± .010 (63,5 ± 0,25) .100 (2,54) 4x4 CODES .(120,504 ± ± . 001,205) .(015,207A ± B± . 00T 0,YE03 FP8 G). K L M R S T B.(D02UI9,A3T3.6 T4± ±O P. 0N0L0, 1SN53.O). 1 ATION 12345 •• • M•a•trix•••• • • • • • S •ingle Pole/Common Bus ••••• 3.000 2.800 .(252,509 ± ± . 02150,4) ON LOC 678 • • • ••• • • • ••• ± .015 ± .010 RETAINING TT 9 • • • • (76,2 (71,12 STUDS BU10 • • • • ± 0,38) ± 0,25) 11 • • • • 12 • • • • 13 • • • • 14 • • • • 15 • • • • 16 • • • • H G F E M L K J P J E A R L F B S M H C T N G D K .200 ± .010 (5,08 ± 0,25) C LOF 2.700 (68,58) DIM. TERMINAL LOCATION Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Standard Keypads SerieS 88 Sealed, Flange mounted FeatureS • Sealed Keyboard • Colorful Graphic Overlay • Audible, Snap-Dome Contact • User Legendable Styles • 3,000,000 Operations per Button • Optional Panel Seal Gasket to Protect Your Equipment K e yb DimenSionS in inches (and millimeters) o a r d s 5x4 Keyboard a n d K .600 ± .010 .500 ± .010 (12,7 ± 0,25) .128 ± .010 e (15,24 ± 0,25) (4 EQ. SPS.) TOL. NON- (3,25 ± 0,25) yp ACCUM. .072 ad .150 ± .005 SWITCH KEY ± .010 s (3,81 ± 0,13) R. IDENTIFICATION (1,83 .280 ± .010 (FOR REF. ONLY) ± 0,25) (7,11 ± 0,25) .750 ± .010 (19,05 ± 0,25) 1 2 3 4 5 ROW 1 .025 ± .002 (0,64 ± 0,05) 2.690 + .000/ 6 7 8 9 10 ROW 2 - .010 SQUARE .500 .010 (68,33 + .000/ TERMINAL (12,7 ± 0,25) 11 12 13 14 15 ROW 3 - 0,25) (3 EQ. SPS) TOL. NON- ACCUM. 16 17 18 19 20 ROW 4 .380 (9,65) SQ. TYP. 1 2 3 4 5 L L L L L .055 ± .010 O O O O O .105 ± .010 C C C C C (1,40 ± 0,25) .360 ± .010 (2,67 ± 0,25) (9,14 ± 0,25) 2.990 + .000 - .010 (75,95 + .000 - 0,25) BUTTON AREAS ARE EMBOSSED COL = COLUMN termination in inches (and millimeters) Code and truth table 5x4 Keyboard 3.200 ± .010 Dots in the chart indicate connected terminals when switch is closed. (81,28 ± 0,25) Terminals are identified on the keyboard. 3.000 ± .010 (76,2 ± 0,25) BUTTON NO. 1 .(120,504 ± ± . 001,205) .100 (2T,5Y4P). .(029,336 ± ± . 000,153) 5x41 • matrix • • SingCloe DPeoSle/Common Bus • DIA. 4 PLS. 2 • • • • A D E F J K L P Q R U V W .(252,509 ± ± . 02150,4) ation 345 • • • ••• • • • ••• 3.000 2.800 oC 6 • • • • ±(7 .60,125 (±7 1.0,1120 RETAINING on l 78 • • •• • • •• ± 0,38) ± 0,25) STUDS tt 9 • • • • Bu10 • • • • 11• • • • 12 • • • • 13 • • • • 14 • • • • 15 • • • • C LOF 3.200 (8,13) DIM. 1167• • •• • • •• 18 • • • • 19 • • • • 20 • • • • P N K G F J L M H T P M H D U Q L G C V R K F B W S J E A N terminal loCation Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Standard Keypads SPeCiFiCationS rating Criteria rating at 24 Vdc: 10 milliamps, resistive Contact Bounce: Less than 4 milliseconds at materials and Finishes Contact resistance: Compatible with MOS, make, 10 milliseconds at break housing: ABS polycarbonate, black TTL and DTL (10 ohms maximum) temperature: -40°C to +80°C graphic overlay: Polyester Voltage Breakdown: 250 Vac between mutually Contact Dome: Stainless steel, selectively insulated parts operating Features gold- plated life expectancy: 3,000,000 operations per Button travel: 0.015"(0,38 mm) nominal total terminals: Phosphor bronze button travel typical operating Force: 350 grams StanDarD legenDS Colorful graphic overlays are polyester with continues to look bright and bold throughout Information section and choose one of the a tough acrylic bond to provide maximum the keyboard life. Available through distributors. clear window overlays below; then order a protection against dirt and moisture. Second For instant custom legends, order separate sheet of legend inserts. Or, if you prefer, order K surface printed, the overlay wipes clean and blank keyboards as indicated in the Ordering the keyboard custom printed by Grayhill; see eyb Ordering Information. o a r d s a n d K e y p a d s -143 -152 -172 88aB2, 88-101 88aC2 -052 -072 -082 88BB2, 88-001 88BC2 -252 -262 88JB2, 88JC2 88-201 Sealing oF KeYBoarDS The graphic legend is silk-screen printed detergent solution, soapy water, 30% hydrogen with the keyboard. There are two types of on the second surface of a clear polyester peroxide, wine, beer, whiskey, coffee, cocoa, milk, gaskets: one for mounting the keyboard beneath film, providing maximum legend protection. tomato juice, lemon juice, etc. Hydrocarbons, the panel, and one for mounting it above the It withstands high humidity, and it is resistant ketones and freon do not affect the overlay. equipment panel. See Panel Seal Gaskets. to scratching, marring, and dulling of the But, we recommend that you do not subject the surface caused by fingernails, wiping cloths, keyboard to these chemicals, since they may The contact system is internally sealed by a and cleaning materials. It has excellent solvent affect the switch housing, which is ABS plastic. To special adhesive backed sheet that holds the resistance to water, petroleum oil, alcohols discuss a particular solvent, contact Grayhill. domes in position on the PC board. and aliphatic hydrocarbons. Protect your equipment in outdoor or harsh These common liquids do not attack the environmental conditions by sealing the keyboard overlay: 5% acetic acid, 5% citric acid, 2% to the equipment panel. Use an optional gasket Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Standard Keypads Panel Seal gaSKetS Subpanel mounting topside mounting Weatherproof and waterproof your subpanel and topside mounted keyboards with optional panel seal gaskets. DIM. C 2.710 DIM. A 2.850 2.500 Sthuicbkp; atnoepls kideey bkoeayrbdo gaards kgeat sisk e.0t 6is2 ". 0(19,45"7 ( m2,m39) 3±(8. 2.100,02058 ±(±6 08.0,,180335) ±(±7 02.0,,130395) ±±( 6 0.30,1,0535 ) mm). ± 0,13) Material is cellulose fiber, foam, nitrile rubber. Order gaskets separately from keyboard. Ke DIM. B DIM. D y b o a r Size of Subpanel mount topside mount d s a Subpanel 3x4 Part no. 88m2001-2 Keyboard Dim. a Dim. B Dim. C Dim. D n d Subpanel 4x4 Part no. 88m2009-2 K 3x4 2.010 ± .005 2.400 ± .005 1.800 ± .005 2.040 ± .005 ey Subpanel 5x4 Part no. 88m2019-1 (51,05 ± 0,.13) (60,96 ± 0,13) (45,72 ± 0,13) (51,82 ± 0,13) p a ds Topside 3x4 Part no. 88m2012-1 4x4 2.510 ± .005 2.900 ± .005 2.300 ± .005 2.540 ± .005 Topside 4x4 Part no. 88m2015-1 (63,75 ± 0,13) (73,66 ± 0,13) (58,42 ± 0,13) (64,52 ± 0,13) Topside 5x4 Part no. 88m2018-1 5x4 3.010 ± .005 3.400 ± .005 2.800 ± .005 3.040 ± .005 (76,45 ± 0,13) (86,36 ± 0,13) (71,12 ± 0,13) (77,22 ± 0,13) inStant CuStom legenDS PrinteD legenDS not available through Distributors. For medium available through Distributors button. Legends are printed in black on clear volume applications, or where legends cannot Create your own legends using these 3 items: 1) film in News Gothic Condensed type style. They be produced by the self legend method, you a blank keyboard, 2) the clear window overlays include letters A through Z, numbers 0-69, can order epoxy ink printed legends. Virtually shown on Standard Legend page and 3) a sheet telephone legends, commonly used words, anything which can be photographed can be of legend inserts. symbols and blanks. printed. Grayhill will print your legend and then Part no. 87aC2046 add the clear window overlay. Blank Keyboards The numbers below order blank keyboards for Use matching dry transfer lettering on blank type Simulated Character & line the user to legend. For description, refer to the inserts of legend sheet: upper and lower case i.D. no. Style & Size limitations * part numbering scheme below. The keyboards letters, 0-9, and common symbols. and overlays are ordered separately. Small Print Part no. 87-Dt-2096-088 4gh088 ABCDEFGH END 3x4 Matrix Part no. 88aB2 Medium Print Part no. 87-Dt-2096-125 DATA 3x4 SP/Com Bus Part no. 88aC2 Large Print Part no. 87-Dt-2096-187 4x4 Matrix Part no. 88BB2 1gh125 ABCDE LAD 4x4 SP/Com Bus Part no. 88BC2 Clear Window overlays 5x4 Matrix Part no. 88JB2 Order separately from keyboards. See also ABCD ON 5x4 SP/Com Bus Part no. 88JC2 ordering information. 3gh187 3x4 Overlay Part no. 88-101 legend insert Sheet and Dry transfers 4x4 Overlay Part no. 88-001 ABC 15 Self-adhesive inserts are die-cut to fit the 5x4 Overlay Part no. 88-201 2gh250 orDering inFormation available from your local grayhill Distributor. grayhill Series number For prices and discounts, contact a local Size option Sales Office, an authorized local Distributor or A = 3x4 Grayhill. B = 4x4 J = 5x4 Circuitry option B2 = Matrix code C2 = Single pole/common bus 88aB2–152 Standard legend Choices 3x4 Size: -143, -152, or -172 4x4 Size: -052, -072 or -082 5x4 Size: -252 or -262 Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com