Q.VITEC Imagechecker Q.400PD, Руководство по оборудованию

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Introduction
10
 Use an isolation switch to switch the DC power source off an on. The unit is only
completely disconnected from the main power source when the DC power cord is dis-
connected either from the power source or the unit. Therefore, the DC power cord and
its connectors must always remain easily accessible.
 All plugs on the connection cables must be screwed or locked on the housing.
 The chassis of the GN series device must be grounded by establishing a large-area
contact between the earth screw (at the rear bottom side) and an appropriate
grounding connection point.