Specifications

SQ: 2-7
RS3: Service Quick Reference Guide
Maintenance
Removing and Installing Cards
Proper procedures must always be followed when removing or inserting
cards in the system. Observe the following precautions and instructions
when working on the system.
D Use a grounded wrist strap with a built-in one megohm resistor for
your safety and to prevent damage to static sensitive circuits. The
resistor allows static electricity to drain to ground while isolating
you from direct ground.
D Before removing AC and DC power from the system, move all
Nonvolatile Memory card ENABLE/DISABLE switches to the
DISABLE position.
D Before removing or inserting any card (except a PeerWay buffer
card) in a ControlFile, first disable the Nonvolatile Memory card
and then the Coordinator processor card by placing the
ENABLE/DISABLE s witches to the DISABLE position.
D Always power down consoles before removing or installing c ards.
NOTE: The Disk shutdown (DS) command should always be
performed before powering down the console. This will purge the
cache and prevent possible loss of data.
D Check the jumper positions when you replace a card.
D Ensure that cards are seated properly.
—
Place y our right thumb on the upper plastic card extractor
lever and place your left thumb on the lower extractor.
—
Push evenly and firmly with both thumbs at the same time.
You should feel the card seat.
D All circuit cards must be in antistatic bags when outside their card
cage. Use approved antistatic bags when shipping or storing
cards.
D Never handle circuit cards by the edge connectors. Small
amounts of oil from your skin can contaminate the edge
connectors, causing problems with intermittent contacts.
D Use only approved nonstatic brushes to clean edge connectors.
Never use erasers, abrasive materials, or nylon brushes.
Abrasives can remove the gold flash, and other materials can
cause s tatic electricity damage to onboard components. Follow
the instructions in “Cleaning Cards” in this section.