Nokia Siemens Networks GSM/EDGE BSS NSN FXDA 472083A.101 472083A.102 472083A.203 472083A.X51 Flexi Multiradio RF Module(900MHz 18TRX) Base Station

الوصف

Flexi Multiradio RF Module (FXxx)
FXxx is a 3HU high module with a *-branch radio transceiver. The module consists of three independent branches designed to concurrently transmit and receive multicarrier signals of multiple radio technologies. One transmitter and receiver (one branch) can create one sector. One FXxx can support up to 3 sector configuration. Each sector consists of a transmitter, receiver chains and front end filters. It contains two receive chains to provide the functionality of *-way receive diversity functionality. It is possible to chain up to 3 radio modules with OBSAI RP**1. The front end filters are software tunable filters. FXxx contains integrated antenna line supervision and MHA support.
The RF module also contains the necessary functionalities like the digital and control cir-cuitry, RP**1 interfaces and the required DC/DC power conversion. The RF modules are supplied with replaceable fan units.

External and internal interfaces in FXxx are:
• *8V DC
• External Alarm interface compatible with FPA
• 3 optical interfaces (OBSAI RP**1)
• 6 Antenna interfaces - 3 duplexed and 3 RX diversity
• FXDA/FXEA/FXJA has 3 RX diversity outputs and FXCx/FXFx has 6 Rx outputs

FXxx is a single band unit; there is a separate FXxx module for each frequency band supported by Flexi Multiradio BTS as follows:
• FXCA GSM**0 full band
• FXDA GSM**0 full band (E-GSM)
• FXDJ GSM**0 J-band (P-GSM for CDMA co-siting)
• FXEA GSM***0 full band
• FXFA GSM***0 full band

Each sector/ carrier/TRX in an FXxx can be shut down separately. The voltage of the power amplifier can be adjusted to optimize the power consumption of the module.