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703.8.3.2 Optical Power Density
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Receiver shall produce a 12 decibel (dB) signal-plus-noise-to-noise ratio with a 1 kHz modulation tone at +/- 2.5 kHz deviation of the 25 kHz subcarrier at an optical power density of 26 picowatts per square millimeter measured at the receiver photosensor aperture.
Related Code Sections
703.8.3.2 Communication Elements and Features, Optical Power Density
subcarrier at an optical power density of 26 picowatts per square millimeter measured at the receiver photosensor aperture ...
Accessible and Usable Buildings and Facilities 2009 of South Carolina > 7 Communication Elements and Features > 703 Signs > 703.8 Remote Infrared Audible Sign (RIAS) Systems > 703.8.3 Infrared Audible Sign Receivers > 703.8.3.2 Optical Power Density
703.8.3.2 Communication Elements and Features, Optical Power Density
subcarrier at an optical power density of 26 picowatts per square millimeter measured at the receiver photosensor aperture ...
Accessible and Usable Buildings and Facilities 2017 of South Carolina > 7 Communication Elements and Features > 703 Signs > 703.8 Remote Infrared Audible Sign (RIAS) Systems > 703.8.3 Infrared Audible Sign Receivers > 703.8.3.2 Optical Power Density
(1) Communications Systems, Type BLP
producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical density of 0.15 ...
National Electrical Code 2014 of South Carolina > 8 Communications Systems > 830 Network-Powered Broadband Communications Systems > 830.179 Network-Powered Broadband Communications Equipment and Cables > (B) Network-Powered Broadband Communication Low-Power Cables > (1) Type BLP
(1) Communications Systems, Type BLP
producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less ...
National Electrical Code 2017 of South Carolina > 8 Communications Systems > 830 Network-Powered Broadband Communications Systems > 830.179 Network-Powered Broadband Communications Equipment and Cables > (B) Network-Powered Broadband Communication Low-Power Cables > (1) Type BLP
(D) Special Conditions, Type FPLP
a cable that is low-smoke producing cable and fire-resistant cable is that the cable exhibits a maximum peak optical density of 0.50 or less ...
National Electrical Code 2014 of South Carolina > 7 Special Conditions > 760 Fire Alarm Systems > 760.179 Listing and Marking of PLFA Cables and Insulated Continuous Line-Type Fire Detectors > (D) Type FPLP