Table 5-25
Transmission cable connections for a GSM+UMTS base station in IP over FE
common transmission mode (1)
SN
Description
T1
For details, see
T2
For details, see
shows the transmission cable connections for a GSM+UMTS base station in IP co-
transmission mode when the WMPT FE/GE optical port is used as the shared port for data
transmission, and the FE/GE electrical ports of the GTMU and the WMPT are interconnected
to implement IP co-transmission.
Figure 5-21
Transmission cable connections for a GSM+UMTS base station in IP over FE
common transmission mode (2)
Table 5-26
Transmission cable connections for a GSM+UMTS base station in IP over FE
common transmission mode (2)
SN
Description
T1
For details, see
T2
For details, see
Route Backup Mode with IP Common Transmission
In a GSM+UMTS base station, the route backup mode with IP common transmission has the
following characteristics:
l
IP transmission is applied. The GTMU and WMPT are connected to the BSC and RNC
respectively using the active channel.
l
The GTMU and the WMPT are interconnected using FE ports on their panels.
l
If the active channel is faulty, the standby channel takes over. After the active channel is
restored, the route is switched back to the active one.
5 BTS3900 Cables
BTS3900
Hardware Description
5-20
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Issue 04 (2011-02-15)