THOMSON grass valley XtenDD, Manual

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4. Connection and Startup
4 - 1 Planning and Installation - Rev. 0 / 04.2002
4. CONNECTION AND STARTUP
4.1 GROUNDING REQUIREMENTS
Protective grounding
Grounding of the device serves the product safety and meets the requirements of
Class I equipment.
The device is connected with the protective earth of the power supply circuit (e.g.
the studio) by means of the mains cable which also contains the earthed protective
conductor PE .
Requirement is an earthed and checked mains socket!
In the device, the AC mains input is provided with a leading protective contact. This
protective contact is internally connected with the parts to be earthed, e.g. the case.
The effect of the protective earth connection must not be neutralized through the
use of an extension cord without protective earth conductor, through an exces-
sively long cable, nor must its function be disabled in any other way!
Additional earth conductor
At the rear the device provides separate screw terminals for protective earth.
The grounding terminal is internally connected with the
AC IN power socket and
the metal case parts.
CAUTION!
Any break of the protective earth conductor inside or outside the device or
disconnection of the protective conductor connector may entail that, in the
event of a failure, the operational safety of the device will no longer be en-
sured! All mains sockets of the devices being interconnected with signal
cables have to be checked. The protective earth conductors must not be live!