Inputs Mesa 7I37TA IO Card Outputs Anything Connector  Connecte   Wire Colour Anything Connector  Connected   Wire Colour P1 TB2 TB1 P1 TB2 TB1 0 Pin1 Bit0 X Limit + 33 Pin17 Bit0 System OK Pin2 Bit0 Common Pin18 Bit0 Common 3 Pin1 Bit1 X Limit - 35 Pin17 Bit1 Spindle CW Pin2 Bit1 Common Pin18 Bit1 Common 5 Pin3 Bit2 X Home 37 Pin19 Bit2 Spindle CCW Pin4 Bit2 Common Pin20 Bit2 Common 39 Pin19 Bit3 Coolant On 7 Pin3 Bit3 Y Limit + Pin20 Bit3 Common Pin4 Bit3 Common 9 Pin5 Bit4 Y Limit - 41 Pin21 Bit4 Mist On Pin6 Bit4 Common Pin22 Bit4 Common 11 Pin5 Bit5 Y Home 43 Pin21 Bit5 Pin6 Bit5 Common Pin22 Bit5 45 Pin23 Bit6 13 Pin7 Bit6 Z Limit + Pin24 Bit6 Pin8 Bit6 Common 47 Pin23 Bit7 15 Pin7 Bit7 Z Limit - Pin24 Bit7 Pin8 Bit7 Common 49 +5 Volt 17 Pin9 Bit8 Z Home Pin10 Bit8 Common 19 Pin9 Bit9 A Limit + Pin10 Bit9 Common 21 Pin11 Bit10 A Limit - Pin12 Bit10 Common 23 Pin11 Bit11 A Home Pin12 Bit11 Common 25 Pin13 Bit12 E-Stop Pin14 Bit12 Common 27 Pin13 Bit13 Fault Pin14 Bit13 Common 29 Pin15 Bit14 Reset PB Pin16 Bit14 Common 31 Pin15 Bit15 Power On Pin16 Bit15 Common