Card descriptions are provided in Chapter 2 "Common Control Cards," Chapter 3 "Electrical Cards," Chapter 4 "Optical Cards," Chapter 5 "Ethernet Cards," and Chapter 6 "Storage Access Networking Cards." To install equipment, refer to the Cisco ONS 15454 Procedure Guide. This chapter provides a description of Cisco ONS 15454 shelf and backplane hardware. Cisco does not recommend using its path protection feature in any particular topological network configuration. Rather, these terms, as well as "Path Protected Mesh Network" and "PPMN," refer generally to Cisco's path protection feature, which may be used in any topological network configuration. These terms do not refer to using Cisco ONS 15xxx products in a unidirectional path switched ring configuration. Note The terms "Unidirectional Path Switched Ring" and "UPSR" may appear in Cisco literature. 1.18 Software and Hardware Compatibility.1.16.4 TL1 Craft Interface Installation.1.16 Alarm, Timing, LAN, and Craft Pin Connections.1.14.1 Fan Speed and Power Requirements.1.11.4 DS-1 Twisted-Pair Cable Management.1.11.2 Fiber Management Using the Tie-Down Bar. ![]() 1.4.4 Alarm Interface Panel Replacement.
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