User's Manual

3CC12425AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 03 31/70

Figure 12 – Connecting the "F" connector with the thermoshrinkable sleeve

4. Attach the cable to the X-Pol RT unit using a cable tie.

Note: Do no overtighten the cable tie on the cable; this could cause deformation of the dielectric and

subsequent loss of performance.

5. Run the cable to the NT unit and equip it with a type "F" 75 ohm coaxial connector, supplied with the

equipment.

3.7 – Installation of the Terminal Station 7390NT (Indoor Unit)

Considerations

– The NT units are designed for indoor installation only.

– The NT should be positioned in accordance with the needs of the user and the technical cons-

traints (e.g., minimum distances to be respected, topology of the connections, accessibility of the

X-Pol RT/NT link, power supply).

– Always place the NT in a dry, dust-free environment, away from any major source of heat

(-5°C < T < +55°C).

IF THE COAXIAL CABLE IS INSTALLED IN SUCH A WAY THAT THE CABLE "F"

CONNECTOR IS UNDER EXCESSIVE TENSION, ANTENNA MISALIGMENT OR

CABLE DAMAGE AT THE CONNECTOR CAN OCCUR. HOWEVER, AN

EXCESSIVELY SLACK CABLE CAN CAUSE THE SAME PROBLEMS UNDER THE

EFFECT TO THE WIND. ALWAYS INSTALL THE CABLE IN SUCH A WAY THAT

THE CONNECTOR IS NOT UNDER EXCESSIVE TENSION, AND THAT THE CABLE

CANNOT MOVE OR VIBRATE DUE TO WIND FORCES.

A SPACE OF 1U (in the event of rack mounting) OR APPROXIMATELY 50 mm

MUST BE LEFT FREE ABOVE THE TERMINAL STATION NT

NEVER PLACE DOCUMENTATION OR ANY OTHER OBJECTS ABOVE THE NT

UNIT ON THE VENTILATION HOLES. THIS MAY CAUSE DAMAGE DUE TO

OVERHEATING

Thermoshrink a pre-pasted sleeve on the

connector/terminal/cable assembly 70 mm

along. (80 mm minimum long before thermoshrink).

The sleeve end should stop at the terminal base.