Alvarion BreezeACCESS 4900 Specifications Page 68

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Chapter 2 - Installation Installing the Modular Base Station Equipment
BreezeACCESS 4900 42 System Manual
2.5 Installing the Modular Base Station
Equipment
The following sections describe the slot assignment for the Base Station chassis,
provide illustrated descriptions of the power supply modules and Access Unit
network interface modules, and describe how to install the Base Station
equipment.
2.5.1 BS-SH Slot Assignment
The Base Station chassis comprises ten slots, as shown in Figure 2-7.
To enable power supply redundancy, two BS-PS power supply modules can be
installed in the wider side slots. If a single power supply module is used, it can be
inserted into either one of the two available slots.
The remaining eight slots can hold up to six BS-AU modules. Unused slots should
remain covered until required.
The design of the BS-SH supports collocation of BreezeACCESS 4900 Access
Units with Access Units belonging to BreezeACCESS VL family or other
BreezeACCESS families using GFSK modulation. It supports any mixture of
BS-AU 4900 modules with BreezeACCESS VL or BreezeACCESS GFSK BS-AU
modules, including an optional BS GU GPS module. If Access Units belonging to
BreezeACCESS GFSK families are used, then it is necessary to use two power
Figure 2-7: BS-SH Chassis Slot Assignment
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