User's Manual

Table Of Contents
Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1 221
DIB-500 R4.1 Component replacement
Replacing the GPS protector – optional
2. Fasten the component on the mounting plate by tightening the corresponding
attachment screws on the underside of the mounting plate again. Use a size 2
cross-head screwdriver for this purpose.
3. Slide the mounting plate with the component fastened on it back in via the front of
the equipment cabinet.
4. Fasten the mounting plate with the component mounted on it on the equipment
rack again, refer to Figure 11.40 on page 220. Use a size 2 cross-head screwdriver
for this purpose.
Specified cable lengths
All cables have specified lengths and must not be mixed. Mark the removed cables dur-
ing the uninstallation, if necessary, and reconnect the removed cables again to the orig-
inal connection during reinstallation.
5. Correctly reconnect all the cables at the front side of the cavity coupler and at the
insulators, Figure 3.31 on page 78.
6. Switch on the power supply again by flipping up the On/Off switch; see Figure 3.15
on page 43.
You have successfully installed the cavity coupler.
11.10 Replacing the GPS protector – optional
The GPS protector is a passive and thus maintenance-free hardware component
mounted on the GPS antenna connection of the equipment rack.
Replacing the GPS protector
If you do not have any GPS satellite reception or only restricted reception, the following
function tests should be performed first of all, refer to section 7.6 on page 159. A defec-
tive GPS protector cannot be repaired; it has to be disposed of appropriately.
The tasks listed in the following table must be performed to replace the GPS protector.
Table 11.35 Overview of the tasks to be performed (Replacing the GPS protector – optional)
Tasks/work steps Described in
Temporary service interruption Section 8.1 on
page 163
Removing the GPS protector Section 11.10.1
on page 222
Installing the GPS protector - optional Section 5.9 on
page 117
Connecting antennas Section 5.10 on
page 119
Recommissioning after a temporary service interruption Section 9.1 on
page 167