Nokia Solutions and Networks T5DK1 사용자 설명서
SC 4812T-MC vs SC 4812T BTS Read Me First (Comparison)
68P64115A19–4
Mar 2003
1X SC 4812T-MC BTS Hardware Installation - Software Release R2.16.1.x
CONTROLLED INTRODUCTION
RMF-1
Read Me First
SC 4812T-MC vs SC 4812T BTS Read Me First (Comparison)
This Read-me-first document describes a summary of changes between
the existing SCt4812T BTS and the SC 4812T-MC (Multicarrier) BTS.
The SC 4812T-MC is based on the existing SC 4812T platform and
employs similar hardware and architecture. The differences between
these products are briefly described and illustrated below. This section is
not intended to replace the SC 4812T-MC manual set.
the existing SCt4812T BTS and the SC 4812T-MC (Multicarrier) BTS.
The SC 4812T-MC is based on the existing SC 4812T platform and
employs similar hardware and architecture. The differences between
these products are briefly described and illustrated below. This section is
not intended to replace the SC 4812T-MC manual set.
Multicarrier provides the capability for all PAs in all quadrants to
provide trunked power across all sector/carriers. This differs from the
previous architecture in which PA modules within a quadrant provided
trunked power to only one carrier. Furthermore, in SC 4812T-MC,
adjacent channels can be combined onto one antenna versus being
transmitted on separate antennas in SC 4812T.
provide trunked power across all sector/carriers. This differs from the
previous architecture in which PA modules within a quadrant provided
trunked power to only one carrier. Furthermore, in SC 4812T-MC,
adjacent channels can be combined onto one antenna versus being
transmitted on separate antennas in SC 4812T.
An overview of the BTS differences is illustrated in the following table
and in illustrations on the following pages (Figure 1 thru Figure 4).
and in illustrations on the following pages (Figure 1 thru Figure 4).
SC 4812T
Description
#
Description
SC 4812T-MC
1
2
3x3 DC Power Input
(see Figure 1)
(see Figure 1)
1
2x2 DC Power Input
(see Figure 1)
(see Figure 1)
1
2
7
3
2
3
4
CCCP Fan Tray
3
CCCP Speed
Controlled Fan Tray
Controlled Fan Tray
4
C-CCP Cage:
S
CIO (3- or 6-Sector)
S
BBX-1X
S
Switch
4
C-CCP Cage:
S
MCIO (3- or 6-Sector)
S
High Power BBX-1X
S
High Power Switch
6
5
PA Shelves:
S
SC 4812T LPA
S
4x4 TX Backplane
S
PA Location and
5
PA Shelves:
S
SC 4812T CLPA
S
Multicarrier module
S
Parallel PA Combiner
S
Enhanced Trunking
Module
S
LPA/PLC Filler Panel
S
PA Location and
5
6
7
2:1 or 4:1 Combiners or
Dual Bandpass TX
Filters
Dual Bandpass TX
Filters
6
TX Bandpass Filters
and/or
TX Output Terminator
5
ti-CDMA-WP-00098-v01-ildoc-ftw
PA Breaker Mapping
(see Figure 4)
(see Figure 4)
7
PA Breaker Mapping
(see Figure 4)
(see Figure 4)
ti-CDMA-WP-00196-v01-ildoc-ftw