System 50 RACKS 24 Channel FEATURES • For use with System 50 Style Controllers • Available for Miniature, G5 and OpenLine® Modules • UL, CSA Certified 24 CHANNEL RACK: Miniature Part No. 70MRCQ24 Dimensions are shown in inches (and millimeters). Tolerances are ± 0.010 (0,25) unless otherwise specified. 8.00 (203,2) 0.40 (10,2) 0.25 (6,4) 7.50 (190,5) FIELD WIRING TERMINAL STRIP (POSITIONS 0-11) LOGIC SUPPLY TERMINAL STRIP 1A FUSE – NOTE: MAXIMUM TERMINAL SCREW TORQUE NOT TO EXCEED 5 IN-LBS. 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1.70 (43,2) + SOCKETS FOR OPTIONAL 1A FUSE 40 KEY SLOT PINS 23/25 6.00 (152,4) 11 12 10 13 9 14 8 15 7 16 6 17 5 18 4 19 3 20 2 21 1 22 0 23 2.60 (66,0) 5.50 (139,7) PIN 1 1 System 50 Y B W R 50 PIN EDGE CARD OR HEADER CONNECTOR FOR LOGIC SIGNALS (SEE SCHEMATIC) 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 AC INPUT AC OUTPUT DC INPUT DC OUTPUT STATUS LED 5A FUSE 0.25 (6,4) FIELD WIRING TERMINAL STRIPS (POSITIONS 12-23) MODULE HOLD DOWN STRIP WITH THUMB SCREWS STANDOFF I.D. 0.15 (3,8) DIA. (4 PLACES) CLEARANCE FOR #6 SCREWS 2.20 (55,9) MAX. 0.75 (19,1) Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com System 50 22 System 50 24 Channel Racks 24 CHANNEL RACK: G5 Part No. 70GRCQ24 Dimensions are shown in inches (and millimeters). All tolerances are ± 0.010 (0,25) unless otherwise specified. 7.50 (190,5) 7.00 (177,8) LOGIC SUPPLY TERMINAL STRIP .25 (6,4) FIELD WIRING TERMINAL STRIP HOLES FOR USER INSTALLED JUMPER (22 AWG) COPPER WIRE NOTE: MAXIMUM TERMINAL SCREW TORQUE NOT TO EXCEED 5 IN-LBS. 6.25 (158,8) 50 PIN STRAIGHT HEADER CONNECTOR 5.75 (146,1) PIN 1 1.675 (42,55) .075 (1,91) STANDOFF I.D. 0.15 (3,81) DIA. (4 PLACES) CLEARANCE FOR #6 SCREW .25 (6,4) 3.380 (85,85) .093 (2,36) REF. NYLON STANDOFF (1 PLACE) .750 (19,05) REF. System 50 System 50 23 Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com System 50 SCHEMATIC: PART NO. 70MRCQ24 AND 70GRCQ24 LOGIC SUPPLY TERMINAL STRIP + – 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 FIELD WIRING TERMINAL STRIP 1 A FUSE 1 2 3 4 5 OPTIONAL 1A FUSE 5A FUSES (MINI RACKS ONLY) 0 1 2 3 4 5 6 7 8 9 10 11 MODULE POSITION 49 47 45 43 41 39 37 35 33 31 29 27 25 LED STATUS INDICATORS (MINI RACKS ONLY) ALL EVEN PINS 2-50 PULL UP RESISTOR NETWORK 3.3 KW (3 PLACES) LED STATUS INDICATORS (MINI RACKS ONLY) 23 21 19 17 15 13 11 9 7 5 3 1 50 PIN CONNECTOR 23 5 4 3 2 1 MODULE POSITION 22 21 20 19 18 17 15 14 13 12 5A FUSES (MINI RACKS ONLY) System 50 48 47 46 45 44 43 42 41 40 39 38 37 ORDERING INFORMATION 16 36 35 34 33 32 31 30 29 28 27 26 25 (modules ordered separately) Part Number I/O Description UL 70MRCQ24-EC 70MRCQ24-HL 70GRCQ24-HL 24 24 24 Card edge 50-pin header with ejector levers 50-pin header with ejector levers X X X CSA X X X Style Mini Mini G5 Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Distributor, or Grayhill. Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com System 50 24