Nortel 1000E Maintenance Manual page 12

Page 12 of 162 Precautions
553-3041-500 Standard 1.00
• Handle the cards by the card stiffeners and edges only. Do not touch the
contacts or components.
• Keep the cards installed in the system as much as possible to avoid dirty
contacts and unnecessary wear.
• Set the cards on a protective antistatic bag. If an antistatic bag is not
available, hold the card, or set it in a card slot unseated from the
connectors.
• Unpack or handle the cards away from electric motors, transformers, or
similar machinery.
• Store the cards in protective packing. Do not stack cards on top of each
other unless they are packaged.
• Store the cards in a dry dust-free area.
During repair and maintenance procedures:
• Insert the cards into compatible slots only.
• Software-disable the cards, if applicable, before they are removed or
inserted.
• Hardware-disable the cards, whenever there is an enable/disable switch,
before they are removed or inserted.
• Return defective or heavily contaminated cards to a repair center; do not
try to repair or clean them.
September 2004