Grounding D-3
920550-5020 Rev 14 HN4000 Hardware Installation Guide
D.6 Grounding
1. Theprotective‐earthgroundwireshouldbe10‐14AWG.
2. Yourlocalelectricalcodemayrequirethataspecificcolor(orcolors)beusedforthe
protective‐earthgroundwire.
D.7 Laser and Fiber Optic
TheHN4000isaClass1laserdevice.
The HN4000mustbepermanentlygroundedtoaCommonBondingNetwork(CBN).
Fiber Optic ports - Optical Safety. Never look at the transmit LED/laser through a magnifying
device while it is powered on. Never look directly at the fiber port or fiber cable ends when they are
powered on.
To avoid degradation of optical-fiber signals and poor system performance, follow appropriate
local practices to ensure that optical-fiber connector ends are clean and free from contamination.
Always install the provided dust covers on transceiver optical ports and connector ends that are
not being used.
Use only for data communications applications that require optical fiber. Use only with the appro-
priate connector. When optical fiber cables are not in use, replace the dust cover.