General InformationI

•Fiber-optic protective plug - For safety and port transceiver protection, fiber-optic protective plugs must be inserted in all port SFPs without fiber-optic cables attached. The switch is shipped with protective plugs installed in all ports. A protective plug is shown in Figure 1–21.

Figure 1–21: Fiber-Optic Protective Plug

•Null modem cable - An asynchronous RS-232 null modem cable is required to configure switch network addresses and acquire event log information through the maintenance port. The cable has nine conductors and DB-9 male and female connectors. A null modem cable is not a standard (straight-through)RS-232 cable. Refer to Figure 1–22.

Figure 1–22: Null Modem Cable

Tools Supplied by Service Personnel

The following tools are expected to be supplied by service personnel performing switch installation and maintenance actions. Use of the tools may be required to perform one or more installation, test, service, or verification tasks.

•Scissors or pocket knife - A sharp cutting edge (scissors or knife blade) may be required to cut the protective strapping when unpacking the switch, HAFM server, Ethernet hub, or replacement FRUs.