Table 5-21
Transmission cable for a GSM+UMTS base station in TDM common transmission
mode (1)
SN
Description
T1
.
shows the transmission cable connection for a GSM+UMTS base station in TDM
common transmission mode when the E1/T1 port on the GSM UTRP serves as the shared port
to connect to the BSC and RNC. The GSM UTRP communicates with the WMPT using the
backplane to implement TDM common transmission.
NOTE
Note that the E1/T1 ports on the GTMU and the WMPT can also be used for data transmission independently,
but the corresponding cable connections are not shown here.
Figure 5-17
Transmission cable connection for a GSM+UMTS base station in TDM common
transmission mode (2)
Table 5-22
Transmission cable for a GSM+UMTS base station in TDM common transmission
mode (2)
SN
Description
T1
.
IP Over E1 Common Transmission
shows the transmission cable connections for a GSM+UMTS base station in IP
common transmission mode when the E1/F1 port on the UMTS UTRP serves as the shared port
to connect to the BSC and RNC, and the FE/GE electrical ports on the GTMU and the WMPT
are interconnected to implement IP common transmission.
NOTE
IP common transmission can also be implemented by interconnecting the FE/GE optical ports on the GTMU
and the WMPT. The transmission cable connections are similar to
, which are not described here.
Figure 5-18
Transmission cable connections for a GSM+UMTS base station in IP over E1
common transmission mode (1)
5 BTS3900 Cables
BTS3900
Hardware Description
5-18
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Issue 04 (2011-02-15)