Grass Valley LDK 4410 - Manual (Page 10)

10 LDK 4410 + LDK 5420 3G Fiber Transmission System User’s Guide (v1.0)
Base station earthing
The rear of the base station power supply unit has two separate screw terminals for protective
earth
(PE) and video earth (VE). These are normally connected by a metal strap.
The protective earth terminal is internally connected to the protective earth conductor of the
power cable. In normal circumstances the connection between the protective earth and the
video earth should not be broken. If required, the central earth connection wire of the studio
can be connected to terminal PE in accordance with VDE regulation 0800/part2.
Only if the studio (or OB van) is equipped with separate protective and video earth systems
may the metal strap be removed. Under these circumstances the video earth terminal must be
connected to the central functional earth potential (video earth) of the studio. This earth
potential should have functional protective and noiseless earth (FPE) qualities as stated in the
VDE regulation 0800/part2. A low impedance interconnection of both earth conductors must
be provided at the central studio earthing point.
Mains lead wiring for UK users
The wires in the mains lead are colored in accordance with the following code:
GREEN and YELLOW- EARTH
BLUE- NEUTRAL
BROWN- LIVE
As the colors of the wires in the mains lead of this apparatus may not correspond with the
colored markings identifying the terminals in your plug proceed as follows:
• The wire colored GREEN AND YELLOW must be connected to the terminal on the plug
marked with the letter E or by the safety earth symbol
or colored GREEN or GREEN
AND YELLOW.
• The wire colored BROWN must be connected to the terminal marked with the letter L or
colored RED.
• The wire colored BLUE must be connected to the terminal marked with the letter N or
colored BLACK.
Ensure that your equipment is connected correctly - if you are in any doubt consult a qualified
electrician.
Metal strap
VE PE