Handling, Safety, And Environmental Guidelines - Nortel 1000ASE-XD Using Manual

190 Appendix B Installing a Gigabit Interface Converter (GBIC)

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
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.