Service manual
1
Tools and Test Equipment
1-15
General Information
• Fiber-optic protective plug - For safety and port transceiver
protection, fiber-optic protective plugs (Figure 1-7) are inserted in
all product ports without fiber-optic cables attached. Products are
shipped with protective plugs installed.
Figure 1-7 Fiber-Optic Protective Plug
• Null modem cable - An asynchronous RS-232 null modem cable
(Figure 1-8) is required to configure product network addresses
and acquire event log information through the product’s serial
port. The cable has nine conductors and DB-9 female connectors.
Figure 1-8 Null Modem Cable
Tools Supplied by
Service Personnel
The following tools should be supplied by service personnel:
• Scissors or pocket knife - A sharp cutting edge (scissors or knife
blade) is required to cut protective strapping when unpacking
replacement FRUs.
• Flat-tip and cross-tip (Phillips) screwdrivers - Screwdrivers are
required to remove, replace, adjust, or tighten FRUs, chassis, or
cabinet components.