ATL Telecom R1-SW Ethernet Switch - Manual (Page 48)

R1-SW24L2B User’s Manual
3-6
Working with Lasers
If your system includes a fiber-optic port, note the following guidelines.
y To avoid exposure to radiation, do not stare into the aperture of a fiber-optic port. Invisible
radiation might be emitted from the aperture of the port when no fiber cable is connected.
y Always keep unused fiber-optic ports capped with a clean dust cap.
Preventing EMI
When you run wires for any significant distance in an electromagnetic field, electromagnetic
interference (EMI) can occur between the field and the signals on the wires.
y Bad plant wiring can result in radio frequency interference (RFI).
y Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy the
signal drivers and receivers in the system, and can even create an electrical hazard by
conducting power surges through lines and into the system.
y If Strong EMI occurs in the installation place, consult RFI experts to get rid of it.
Covering Blank Slots
Ensure that all cards, faceplates, and covers are in place. Blank faceplates and cover panels are
used to:
y Prevent exposure to hazardous voltages and currents inside the chassis
y Help contain electromagnetic interference (EMI) that might disrupt other equipment
y Direct the flow of cooling air through the chassis