Nortel Networks 1000BASE-LX, 1000BASE-SX manual Handling, safety, and environmental guidelines

190 Appendix B Installing a Gigabit Interface Converter (GBIC)

Note: When shorter lengths of single-mode fiber cable are used, there is a risk of overloading the receiver. It may be necessary to insert an in-line optical attenuator in the link to prevent overloading, as follows:

•Insert a 10dB in-line optical attenuator between the fiber optic cable plant and the receiving port on the 1000BASE-ZX GBIC, at each end of the link, if the fiber optic cable span is less than 25 km.

•Insert a 5dB in line optical attenuator between the fiber optic cable plant and the receiving port on the 1000BASE-ZX GBIC, at each end of the link, if the fiber optic cable span is less than 50 km.

Note: The 1000BASE-ZX GBIC is based on proprietary signaling.

Nortel Networks recommends that this product be used only with other

Nortel Networks 1000BASE-ZX GBICs.

Handling, safety, and environmental guidelines

Before installing your GBIC, read the following handling, safety, and environmental guidelines:

•GBICs are static sensitive. To prevent damage from electrostatic discharge (ESD), follow your normal board and component handling procedures.

•GBICs are dust sensitive. When storing a GBIC, or when a GBIC is disconnected from a fiber optic cable, always keep the dust cover over a GBIC’s optical bores.

•To clean contaminants from the optical bores of a GBIC, use an alcohol swab or equivalent to clean the ferrules of the optical connector.

•Dispose of this product according to all national laws and regulations.

209418-A