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BTS3900C (Ver.C)
Hardware Description
Panel
There are five types of USCU: USCUb11, USCUb12, USCUb14, USCUb22, and USCUb21,
as shown in
same exterior. The USCUb22 and the USCUb21 have the same exterior.
Figure 3-45 USCUb11, USCUb12, and USCUb14 panel
Figure 3-46 USCUb22 and USCUb21 panel
(1) GPS port
Functions
The USCU has the following functions:
l
l
l
l
l
Issue 03 (2013-05-27)
Figure 3-45
and
(2) RGPS port
NOTE
l The USCUb11, USCUb12, and USCUb14 have silkscreens USCUb11 , USCUb12 and USCUb14
indicating their board types on the lower left corner of the board panel, respectively.
l The USCUb22 and USCUb21 have silkscreens USCUb22 and USCUb21 indicating their board types
on the lower left corner of the board panel, respectively.
The USCUb11 provides ports to communicate with the RGPS (for example the reused
equipment of the customer) and BITS equipment. It does not support GPS signals.
The USCUb12 contains an RT satelliate card, which does not support RGPS signals.
The USCUb14 contains a UBLOX satelliate card, which does not support RGPS signals.
The USCUb22 does not support RGPS signals. It uses a Naviors satellite card, which must
be purchased locally and installed onsite.
The USCUb21 does not support RGPS signals. It uses a K161 satellite card, which must
be purchased locally and installed onsite.
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Copyright © Huawei Technologies Co., Ltd.
Figure
3-46. The USCUb11, USCUb12, and USCUb14 have the
(3) TOD port
3 BTS3900C Modules
(4) M-1PPS port
(5) BITS port
84
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