Table 1-21: Fiber Channel Capacity (One Side of the Shelf)
Fiber Diameter
Maximum Number of Fibers Exiting Each Side
No Ethernet Cables One Ethernet Cable Two Ethernet Cables
1.6 mm (0.6 inch) 144 127 110
2 mm (0.7 inch) 90 80 70
3 mm (0.11 inch) 40 36 32
Plan your fiber size according to the number of cards/ports installed in each side of the shelf. For example, if
your port combination requires 36 fibers, 3 mm (0.11 inch) fiber is adequate. If your port combination
requires 68 fibers, you must use 2 mm(0.7 inch) or smaller fibers.
Fiber Management Using the Tie-Down Bar
You can install an optional 5-inch (127 mm) tie-down bar on the rear of the ANSI chassis. You can use
tie-wraps or other site-specific material to bundle the cabling and attach it to the bar so that you can more
easily route the cable away from the rack. Figure 1-30 shows the tie-down bar, the ONS 15454, and the rack.
Figure 1-30: Tie-Down Bar
Coaxial Cable Management
Coaxial cables connect to EIAs on the ONS 15454 backplane using cable connectors. EIAs feature
cable-management eyelets for tie wrapping or lacing cables to the cover panel.
DS-1 Twisted-Pair Cable Management
Connect twisted pair/DS-1 cables to SMB EIAs on the ONS 15454 backplane using cable connectors and
DS-1 EIAs (baluns).
AMP Champ Cable Management
EIAs have cable management eyelets to tiewrap or lace cables to the cover panel. Tie wrap or lace the AMP
Champ cables according to local site practice and route the cables. If you configure the ONS 15454 for a
ONS_15454_Reference_Manual_R8.5.x_--_Shelf_and_Backplane_Hardware
Table 1-21: Fiber Channel Capacity (One Side of the Shelf) 42
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