User's Manual

Table Of Contents
Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1 55
DIB-500 R4.1 Product description
Constituents
| High power variant
up to two carriers per network element,
Higher transmitting power than hybrid and cavity variants
| FlexibleTx variant
only equipped with Rx path
up to four carriers per network element,
high flexibility due to the use of project-specific antenna coupling systems
site-specific provision by the network operator
Antenna diversity is available for optimal reception properties.
Additional Information
For more information on the technical characteristics and performance features of the
different versions, please refer to the Technical data. The requirements on external
project-specific antenna coupling systems are available in the site requirements.
Table 3.23 lists the antenna coupling variants, the number of carriers each variant pro-
vides and the resulting number of supported Tx/Rx antennas. For the diversity variants,
the diversity reception is facilitated by means of another Rx antenna.
Table 3.23 Variants of the ACS
Variant 1 carrier 2 carriers 3/4 carriers 5/6 carriers 7/8 carriers
Hybrid
| 1 Tx/Rx antenna (antenna A)
1)
| 1 Rx antenna (antenna B)
2)
| 1 Tx-/Rx antenna (antenna A)
1)
| 1 Rx antenna (antenna B)
2)
Cavity like the hybrid variants but a single-carrier variant is not available
High Power
(without trans-
mitter coupling
system)
| 1 Tx/Rx
antenna
(antenna A)
| 1 Rx antenna
(antenna B)
2)
| 1Tx/Rx
antenna
(antenna A)
| 1Tx/Rx
antenna
(antenna B)
--- --- ---
FlexibleTx depending on the antenna coupling system used --- ---
1) per equipment rack
2) with diversity