Bus Cable Bus System USB Conductor Color Code Green/White-Green Blue/Yellow Orange/Violet Red/Black Conductor Grouping 2 x (2 x 28 AWG)/2 x (2 x 28 AWG) C Conductor Material Copper Impedance 90 ohm Includes Ground No Jacket Color Red Jacket Material PUR Length Order by the Foot Maximum Acceleration 98.4 m/sq sec Maximum Operating Temperature 158 Degrees F Maximum Velocity - Supported 7 fps Maximum Velocity - Unsupported 10 fps Minimum Bend Radius Factor - E-Chain 12.5 x OD