Service manual

GS160/320 Component Removal and Replacement 4-19
Figure 4–3 shows the front of a GS320 system showing the power system color
codes assigned to each system box, power subrack, and AC outlets. The color
codes also appear above the circuit breakers of AC input boxes. Cabling and
power system parts placement follow this color code scheme.
Color tape is applied in the following locations:
• Near the power connectors at the rear and the power signal connector at the
front of system boxes
• Cables from the system boxes to the power cabinet bulkhead
• Both sides of the power cabinet bulkhead
• Cables from the power cabinet bulkhead to the power distribution panel on
the power subrack
• Power cabinet frame next to each power subrack
• Above the AC input box outlets
• Above the AC input box circuit breakers protecting the outlets to the power
subracks
Table 4–6 shows the colors assigned to parts of the power system and the
system resources they power.
Table 4– 6 Power Color Coding
Color
System
Box # QBBs
Power
Subrack
AC Input
Box Outlets
AC Input Box
Circuit Breakers
Blue 1 0 and 1 1
Box 1
top half
CB2, CB3, CB4
Green 2 2 and 3 2
Box 1
bottom half
CB5, CB6, CB7
Orange 3 4 and 5 3
Box 2
top half
CB2, CB3, CB4
Brown 4 6 and 7 4
Box 2
bottom half
CB5, CB6, CB7