Working with WAN Interfaces

Site Preparation and Safety Information

Do not touch the power supply when the power cord is connected. Line voltages are present within the power supply even when the power switch is off and the power cord is connected.

Working with WAN Interfaces

Use caution when installing or modifying telephone lines to prevent electric shock.

Do not work on the system or connect or disconnect cables during periods of lightning activity.

Do not touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.

Hazardous network voltages are present in WAN ports regardless of whether power to the system is off or on. When detaching cables, detach the end away from the system first.

Do not use a telephone (unless it is the cordless type) during an electrical storm.

Do not use a telephone to report a gas leak in the vicinity of the leak.

Do not install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

Working with Lasers

Fiber-optic ports (for example, FDDI, OC-3, OC-12, OC-48, ATM, GBIC, and 100BaseFX) are considered Class 1 laser or Class 1 LED ports.

These products have been tested and found to comply with Class 1 limits of IEC 60825-1, IEC 60825-2, EN 60825-1, EN 60825-2, and 21CFR1040.

To avoid exposure to radiation, do not stare into the aperture of a fiber-optic port. Invisible radiation might be emitted from the aperture of the port when no fiber cable is connected.

Figure 3, Figure 4, and Figure 5 show examples of Class 1 laser and LED labels. The smaller labels shown in Figure 3and Figure 4 usually appear on field-replaceable cards. Or the larger label shown in Figure 5appears on the chassis.

Figure 3

Class 1 Laser Label for a Single-Mode Fiber Port

CLASS 1 LASER PRODUCT LASERPRODUKT DER KLASSE 1

PRODUIT LASER DE CLASSE 1

PRODUCTO LASER CLASE 1

11772

Figure 4

Class 1 LED Label for a Multimode Fiber Port

CLASS 1 LED PRODUCT PRODUKT MIT KLASSE 1 LED

PRODUIT AVEC VOYANT DEL DE CLASSE 1

LED

PRODUCTO LED DE LA CLASE 1

11773

Regulatory Compliance and Safety Information for the Cisco 7301 Internet Router

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Cisco Systems CISCO7301 Working with WAN Interfaces, Working with Lasers, Class 1 Laser Label for a Single-Mode Fiber Port