Int-Pip7 Electromagnetic Interference (Emi); Int-Pip8 Grounding - IBM i 830 Repair Manual

Intermittent PIPs
2. See chapter 9 in the iSeries 400 Technical Information Manual SY44-0008, and use
3. For more information, see the IBM 5250 Information Display Systems — Planning

INT-PIP7 Electromagnetic Interference (EMI)

This procedure contains actions to lessen the effects of electrical noise on the
system.
1. Ensure that air flow cards are installed in all full-size card slots and adapter
2. Keep all cables away from sources of electrical interference, such as AC voltage
3. If you have an expansion unit, ensure that the cables that attach the system
4. It is recommended that an installation planning representative perform the following
5. Use a radio frequency (RF) field intensity meter to determine if there is an

INT-PIP8 Grounding

This procedure contains actions to ensure that the system is electrically grounded
correctly.
DANGER
An installation planning representative must perform all of the steps in this procedure.
Notes:
1. Power off the iSeries 400 system and the power network branch circuits before
2. The customer may have to get an electrician to perform some of the steps in
3. Read Electrical Safety for IBM Service Representatives, S229-8124.
4. To ensure the safety of personnel, all electrical wiring in the United States must
1. Check ALL system receptacles to ensure that each one is wired correctly. This
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iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
it to check for any cable problems.
and Site Preparation Guide, GA21-9337.
This ends the procedure.
card slots that are not used.
lines, fluorescent lights, arc welding equipment, and radio frequency (RF)
induction heaters. These sources of electrical noise can cause the system to
become powered off.
unit to the expansion unit are seated correctly.
steps.
If the failures occur when people are close to the system or machines that are
attached to the system, the problem may be electrostatic discharge (ESD).
unusual amount of RF noise near the iSeries 400 system. You can also use it to
help determine the source of the noise.
This ends the procedure.
An electrical outlet that is not correctly wired could place hazardous voltage
on metal parts of the system or the products that attach to the system. It is the
customer's responsibility to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock. (RSFTD201)
performing this procedure.
this procedure.
meet National Electrical Code requirements.
includes receptacles for the AS/400 system and all equipment that attaches to
the iSeries 400 system-including workstations. Do this to determine if a wire
with primary voltage on it is swapped with the ground wire, causing an
electrical shock hazard. Use the procedures for checking receptacles in Electrical
Safety for IBM Service Representatives, S229-8124.