User's Manual

Table Of Contents
Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1 115
DIB-500 R4.1 Setup and commissioning
Installing the GPS antenna
Figure 5.18 shows an example of installing the GPS antenna supplied.
Figure 5.18 Example: installation of the GP antenna supplied (roof, wall, mast installation)
Responsibility for the installation, commissioning and maintenance of the GPS
antenna
The operating company is responsible for the proper installation, commissioning and
maintenance of the GPS antenna unless this is an integral part of the contract con-
cluded with Rohde & Schwarz Professional Mobile Radio GmbH.
The operator is responsible for ensuring that:
| the installation location of the GPS antenna is appropriate for installing an antenna,
e.g. the roof or wall of a building or an antenna mast.
| an antenna mast, if used, including any required retaining elements are installed in
such a way that they are protected against outside influences, e.g. a storm.
| equipment for overload protection and lightning protection of the GPS antenna has
been provided at the installation site. In this case, ensure that the amplifier inte-
grated into the GPS antenna is supplied V
DC
voltage via the antenna cable.
Additional GPS antenna recommended
For DIB-500 R4.1 with more than two TIB transceiver modules and controller redun-
dancy, the use of an additional GPS antenna is recommended to ensure the GPS syn-
chronicity of the entire base station in case the active controller fails.
Without GPS satellite reception the proper operation of the DIB-500 R4.1 is ensured for
one year (depending on the ambient conditions) if a GPS signal was received before at
least once.