NEC SV8500, Manual

Page: 2699 / 3438

VOL.3-212
CHAPTER 2 TERMINAL-RELATED DEVICES
7.5 Setting of Switch Positions and Mounting of DLI/DAI Card
Note:
When handling circuit cards, observe the following precautions:
(1) Protection Against Static Electricity:
When setting switches on circuit cards, use a Portable Field Service Grounding Kit in order to prevent dam-
age to static-sensitive components.
For example, a 3M Model 8012 consists of a 2 2 VELOSTAT work mat, a 15 ft. ground cord, and a
CHARGE-GUARD Wrist Strap with alligator clip.
• Before handling any circuit cards, first spread out the work mat, then connect the ground cord to the frame
or other ground source.
• If a CHARGE-GUARD wrist strap is to be used, connect the wrist strap to the frame or other ground using
the provided cable.
(2) Handling Circuit Cards:
Whenever possible, do not handle circuit cards with bare hands.
• Do not touch the surface or the mounted components. Touching the surface may damage the card.
• Handle circuit cards with care.
(3) Mounting or Removing Circuit Cards when the system is in operation:
• Never mount or remove a circuit card when the system is in operation. Before mounting or removing a cir-
cuit card, set the MB switch to the UP position.
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required