Appendix B The Cleaning Of Clear Down Cover - Hitachi VK-S454ER User Manual

In such circumstances the usage of a proper RS485 distributor is recommended. The distributor can change the star configuration
connection to the mode of connection stipulated in the RS485 standards. The new connection achieves reliable data transmission
(refer to Figure 20).

Appendix B The Cleaning of Clear Down Cover

To obtain constant clear videos, user should clean the down cover periodically.
Be cautious when cleaning. Hold the down cover ring only to avoid direct touch to the acrylic down cover. The acid sweat mark of
fingerprint will corrode the coating of down cover and scratch on down cover will cause vague images.
Use soft dry cloth or the substitute to clean the inner and outer surfaces.
For hard contamination, use neutral detergent.
Figure 19
Figure 20
High Speed Dome Camera User's Manual
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