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3-10
Cell Site Layouts
411-2021-111 Standard 01.01 June 1996
2) is required.
For a frame with 21 channels or more, two duplexers (located in positions
2 and 3) are required.
Figure 3-6
Block diagram of a 120
°
STSR Metrocell using one RF Frame
TRU 1
6 5 4 3 2 1
TRU SHELF
SPLITTER 1
TRU SHELF
SPLITTER 6
ICRM HSMO
RF Frame 1
TRU 8
6 5 4 3 2 1
TRU 9
6 5 4 3 2 1
TRU 16
6 5 4 3 2 1
Duplexer
Position 1
RX ANT
TX
B1
B2
B8
A1
A2
A8
RMC 1A
RMC 1B
Antenna
(Sector X
Main
receive)
Antenna
(Sector X
Diversity
receive)
See Table 3-8 for
RMC/TRU Shelf connection
TRU SHELF
SPLITTER 1
TRU SHELF
SPLITTER 6
TRU/DPA
Shelf 1
TRU/DPA
Shelf 2
ATC 1
ATC 2
See Table 3-5 for
PA/ATC connection
Control Channel
for Sector X
CE Frame
TRU 17
6 5 4 3 2 1
TRU 24
6 5 4 3 2 1
TRU SHELF
SPLITTER 1
TRU SHELF
SPLITTER 6
TRU/DPA
Shelf 3
ATC 3
A3
B3
Duplexer
Position 2
RX ANT
TX
B1
B2
B8
A1
A2
A8
RMC 2A
RMC 2B
Antenna
(Sector Y
Main
receive)
Antenna
(Sector Y
Diversity
receive)
A3
B3
Duplexer
Position 3
RX ANT
TX
B1
B2
B8
A1
A2
A8
RMC 3A
RMC 3B
Antenna
(Sector Z
Main
receive)
Antenna
(Sector Z
Diversity
receive)
A3
B3
Control Channel
for Sector Y
Control Channel
for Sector Z
DPA 12
DPA 1
DPA 4
DPA 5
DPA 8
DPA 9