Cisco WS-X3011 Configuratie Opmerking - Pagina 4

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Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when

electronic components are improperly handled and can result in complete or intermittent failures.

Always follow ESD-prevention procedures when removing and replacing components. Ensure that

the chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring

that it makes good skin contact. Connect the clip to an unpainted surface of the chassis frame to

safely channel unwanted ESD voltages to ground. To properly guard against ESD damage and

shocks, the wrist strap and cord must operate effectively. If no wrist strap is available, ground

yourself by touching the metal part of the chassis.

Caution

between 1 to 10 megohms (Mohms).

Preparing to Connect to a Network

When setting up your switch with a router card, consider distance limitations and potential

electromagnetic interference (EMI) as deﬁned by the EIA.

Warning

treated like telephone-network voltage (TNV) circuits. Avoid connecting SELV circuits to TNV

circuits. (To see translated versions of this warning, refer to the appendix "Translated Safety

Warnings" in the Catalyst 3100 Conﬁguration and Installation Guide.)

The switch has a DB-9 console port that automatically detects baud rate. The default is 9600 baud;

other supported baud rates are 1200, 2400, 4800, 19200, 38400, and 57600. Refer to the Catalyst

3100 Installation and Conﬁguration Guide for detailed pin assignments for the cables you can use

on the console port

Table 4 and Table 5 and two ﬁgures (Figure 2 and Figure 3) detail pin-assignment information for

the cables you can use on the console port of the switch.

For a terminal connection, use a null-modem cable or a straight cable (EIA-232) with a null modem

adapter attached. Refer to the Catalyst 3100 Conﬁguration and Installation Guide for the EIA-232

cable description.

4 Router Card (WS-X3011) Conﬁguration Note

— Turn OFF power to the system.

— If possible, send another person to get medical aid. Otherwise, assess the condition of the

victim and then call for help.

— Determine if the person needs rescue breathing or external cardiac compressions; then take

appropriate action.

For safety, periodically check the resistance value of the antistatic strap, which should be

The auxiliary ports contain safety extra-low voltage (SELV) circuits. BRI circuits are