User's Manual
Table Of Contents
- Title page
- Contents
- About this manual
- Safety information
- Ch 1 - Installation summary
- Ch 2 - Prerequisites
- Ch 3 - Indoor equipment
- Ch 4 - Installing IFL cables
- Ch. 5 - Installing mast mounts
- Ch 6 - Installing ODUs
- Ch 7 - Commissioning the RT
- Ch 8 - Final steps
- Ch 9 - Troubleshooting
- Ch 10 - Maintenance
- App A - Acronyms
- App B - Standards compliance
- App C - Terminating the IFL cable
- Index
1027144–0001 Revision D
Installing ODUs 6–19
RT installation
You must use a mechanical attenuator (figure 6-19) if:
• The RT is within 328 feet to 1,312 feet (100 to 400 meters)
of the HT.
• The RT pointing voltage, obtained from a voltmeter,
exceeds 4.1 volts.
• The installation work order instructs you to use it.
If none of these applies, go on to section 6.9.
Figure 6-19 Mechanical attenuator
rt006
WARNING
To avoid the risk of electric shock and
exposure to potentially harmful radio
frequency (RF) waves, make sure the IDU is
turned off, if already installed, before
installing the mechanical attenuator.
Failure to observe these warnings could
result in personal injury.
Use the attenuator size (in decibels) specified in the installation
work order and/or Site Data Record. The attenuator size is
indicated by a dot on the attenuator barrel:
Dot color
Attenuator
size, dB
Use only for . . .
White 10 24 GHz antenna
Green 20 24 GHz antenna
No dot 10 38 GHz antenna
Red 20 38 GHz antenna
6.8
Installing a
mechanical
attenuator
Attenuator size