Cisco Systems 15454-FTF2 1.11.2 Fiber Management Using the Tie-Down Bar

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Cisco ONS 15454 Reference Manual, R8.5.x
78-18106-01
Chapter 1 Shelf and Backplane Hardware
1.11.2 Fiber Management Using the Tie-Down Bar
Table 1-23 provides the maximum capacity of the fiber channel for one side of a shelf, depending on
fiber size and number of Ethernet cables running through that fiber channel.
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.
1.11.2 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 1-34 shows the tie-down bar, the ONS 15454, and the rack.
Figure 1-34 Tie-Down Bar
Table 1-23 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
105012
Tie-down bar