FXS and FXO ports 65SmartNode 4900 User Manual C • Port pin-outsYellow Orange Blue Tip 17 Pair 17 49Orange Yellow Blue Ring 17 17Yellow Green Blue Tip 18 Pair 18 50Green Yellow Blue Ring 18 18Yellow Brown Blue Tip 19 Pair 19 51Brown Yellow Blue Ring 19 19Yellow Slate Blue Tip 20 Pair 20 52Slate Yellow Blue Ring 20 20Purple Blue Blue Tip 21 Pair 21 53Blue Purple Blue Ring 21 21Purple Orange Blue Tip 22 Pair 22 54Orange Purple Blue Ring 22 22Purple Green Blue Tip 23 Pair 23 55Green Purple Blue Ring 23 23Purple Brown Blue Tip 24 Pair 24 56Brown Purple Blue Ring 24 24Purple Slate Blue Tip 25 Pair 25 57Slate Purple Blue Ring 25 25White Blue Orange Tip 26 Pair 26 58Blue White Orange Ring 26 26White Orange Orange Tip 27 Pair 27 59Orange White Orange Ring 27 27White Green Orange Tip 28 Pair 28 60Green Whitee Orange Ring 28 28White Brown Orange Tip 29 Pair 29 61Brown White Orange Ring 29 29White Slate Orange Tip 30 Pair 30 62Slate White Orange Ring 30 30Red Blue Orange Tip 31 Pair 31 63Blue Red Orange Ring 31 31Red Orange Orange Tip 32 Pair 32 64Orange Red Orange Ring 32 32Table 16. Band marked color-codes for the 64-pin RJ-21X connector (Continued)Wire/Color Code Binder Color Tip & Ring Pair Number 64 PinPositionsMain color Stripe