Table 5-56
Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE
mode (1)
Cable Number
Cable Description
T1 and T2
See
shows the transmission cable connections for a UMTS+LTE base station when the
FE/GE electrical port is used for data transmission on the UMTS side and the FE/GE optical
port is used for data transmission on the LTE side.
Figure 5-52
Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE
mode (2)
describes the cable connections.
Table 5-57
Transmission cable connections in a base station in UMTS FE/GE+LTE FE/GE
mode (2)
Cable Number
Cable Description
T1
See
T2
See
5.2.3 CPRI Cable Connections
The CPRI cables are connected in star topology or chain topology. In star topology, each RFU
is connected to the BBU separately. In chain topology, the RFUs are cascaded before connected
to the BBU.
CPRI Cable Connections for a GSM Only Base Station
and
show the CPRI cable connections of the DRFU/GRFU.
5 BTS3900 Cables
BTS3900
Hardware Description
5-38
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Issue 04 (2011-02-15)