User Manual

UBS Macro B T S Product Ov erview Chapter 1: Ov erview
UBS Macro BTS frames are configured for either +27 V DC operation, –48 V DC operation, or
220 V AC operation.
UBS Macro BTS frames are also configured for low , mid, or high capacity . Capacity is determined
by the quantity of sector carriers and traffic channels supported by the frame. The quantity of
sector carriers is a function of the quantity of XMIs. The quantity of traffic channels is a function
of the quantity of modems. Because the modems are inside the DMI, the quantity of DMIs is a
capacity factor . The capacity of a UBS Macro BTS frame is essentially based on the following:
• low capacity - one XMI and up to two DMIs
• mid capacity - two XMIs and two DMIs
• high capacity - more than two XMIs (four XMIs maximum) and more than two DMIs (five
DMIs maximum)
Currently , only low and mid capacity frames are available/supported.
High capacity UBS Macro BTS frames will be available in the future.
The currently available UBS Macro BTS frames are shown in Figure 1 -1 UBS Macro BTS
low -tier/low -capacity frame (1000 mm rack) on page 1 - 27 , Figure 1 -2 Low capacity UBS Macro
BTS starter frame (1800 mm rack) on page 1 - 28 and Figure 1 -3 UBS Macro BTS mid -capacity
frame (1800 mm rack) on page 1 - 30 .
UBS Macro BTS Frame Standard Equipment
All UBS Macro BTS frames, regardless of capacity , are equipped with at least one of each
of the following:
• IDRF (Integrated Duplexer RX Filter)
• S SI (Site Span I/O) module
• XMI (Transceiver Module Internal) module
• DMI (Digital Module Internal) module
• PDU (P ower Distribution Unit)
The following sections briefly describe the UBS Macro BTS frame standard equipment.
1 -16 68P09283A64 -3
FOA SEP 2007