- FOCUS ENHANCEMENTS FS-C Portable DTE Recorder User Guide MANL-1038-04
 vi     FS-C Portable DTE Recorder
• Non-Use Period
During extended periods when the device is not used, 
unplug it from the power source and retract the power-cord.
Grounding or Polarization
• Polarized 
If this product is equipped with a polarized alternating 
current line plug (a plug having one blade wider than the 
other), it will fit into the outlet only one way. This is a safety 
feature. If you are unable to insert the plug fully into the 
outlet, try reversing the plug. If the plug should still fail to 
fit, contact your electrician to replace your obsolete outlet. 
Do not defeat the safety purpose of the polarized plug.
• Grounded
If this product is equipped with a three-wire grounding type 
plug, a plug having a third (grounding) pin, it will only fit 
into a grounding type power outlet. This is a safety feature. 
If you are unable to insert the plug into the outlet, contact 
your electrician to replace your obsolete outlet. Do not 
defeat the safety purpose of the grounding type plug.
Outdoor Antenna Grounding
If an outside antenna or cable system is connected to the FS-C, 
verify that the antenna or cable system is grounded. This 
provides some protection against voltage surges and built-up 
static charges. 
Refer to Article 810 of the National Electric Code, ANSI/NFPA 
70, for information about the proper grounding of the mast and 
supporting structure, grounding of the lead-in wire to an antenna 
discharge unit, size of grounding connectors, location of antenna 
discharge unit, connection to grounding electrodes, and 
requirements for the grounding electrode.










