24 Service Manual (AA-RTDXC-TE, July 2004)

General Information

22 Edge Switch 2/24 Service Manual

Tools and Test Equipment

This section describes tools and test equipment that may be required to install,

test, service, and verify operation of the switch and attached HAFM appliance.

Tools Supplied with the Switch

Tools are supplied with the switch or must be supplied by service personnel. Use

of the tools may be required to perform one or more installation, test, service, or

verification tasks.

■ Fiber-optic loopback plug–An SFP multimode (shortwave laser) or

singlemode (longwave laser) loopback plug is required to perform port

loopback diagnostic tests. One loopback plug is shipped with the switch,

depending on the type of port transceivers installed. Both plugs are shipped if

shortwave laser and longwave laser transceivers are installed. The plug is

shown in Figure 1.

Figure 1: Multimode and singlemode loopback plugs

■ 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 2.

Figure 2: 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 3.