User Manual

1X UBS Macro B T S FRU UBS Macro B T S Product Ov erview
UBS Macro BTS Frame Optional Equipment
The UBS Macro BTS frame may be equipped with following optional equipment:
• E -GPS (External GPS) module
• –48 V DC PSM (P ower Supply Module) shelf with PSMs
• 220 V AC PSM (P ower Supply Module) shelf with PSMs
• QHSO (Quartz High Stability Oscillator) module
• Unbalanced E1 daughter card
• Modem boards
The following sections briefly describe the UBS Macro BTS frame optional equipment.
E -GPS (External GPS) module
The optional E -GPS contains a GPS Receiver (GPSR) that requires connection to an external GPS
RF antenna signal. The E -GPS output timing signal is routed to the DMI controller via the S SI.
The E -GPS is the primary source for BTS system timing.
The optional Remote GPS (RGPS) head may be used instead of the E -GPS .
The E -GPS is considered to be local with respect to the UBS Macro BTS frame, while the RGPS
head is remotely located with respect to the UBS Macro BTS frame.
–48 V DC PSM (Power Supply Module) shelf with PSMs
The –48 V DC PSM shelf is optional. It is used to convert –48 V DC input power to +27V DC
output operating power for distribution to the UBS Macro BTS frame electronics.
The –48 V DC PSM shelf is located at the bottom of the UBS Macro BTS frame. 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 show the location of the –48 V DC PSM shelf
within the UBS Macro BTS frame.
The plug -in PSMs provide DC -DC conversion and +27V DC power output capabilities.
Up to three PSMs can be housed in the PSM shelf . A minimum of two PSMs are equipped for
redundancy . An empty PSM 3 slot is covered with a filler panel.
68P09283A64 -3 1 -21
FOA SEP 2007