DBS3900 V300R008
Product Description
Issue 04 (2008-06-11)
Commercial in Confidence
Page 35 of 46
Site Configuration
TOC (W)
Work Mode
Typical Power
Consumption (W)
S2/2/2(1800M)
20W
No combiner
510
S4/4/4(1800M)
20W
No combiner
730
The typical power consumption refers to the measurement value when the traffic is 30%.
7.8 Ports
7.8.1 Transmission Ports on the BBU
Table 7-9 lists the transmission ports onthe BBU.
Table 7-9
Transmission ports on the BBU
Application
Port
Quantity
Data Rate
Connector
E1/ T1
1 (4 E1/T1s)
E1: 2 Mbit/s
T1: 1.5 Mbit/s
DB44 male
Abis interface
FE
2
10/100 Mbit/s
RJ45
SFP socket
Interface between the
BBU and the RRU
CPRI
6
1.25 Gbit/s
SFP socket
BBU supports 52-route E1/T1 signals or 7-route FE optical(electricity) signals by
adding UTRP.
The CPIR interface can use optical port. The multi-mode optical cable can extend up
to 500 m and the single-mode optical cable can extend up to 40 km. The CPIR
interface can also use electric port with a shielded twisted-pair cable. The bandwidth
of the electric port is 1.25 GHz and the distance of the cable extends only to several
meters. The electric port is applied when multiple RRUs are assembled or installed
together.
7.8.2 External Alarm Ports on the BBU
Table 7-10 lists the external alarm ports on the BBU.
Table 7-10
External alarm ports on the BBU
Application
Port
Quantity
Connector
RS485
2 to 4
RJ45
External alarms
Four dry contacts
16
RJ45
