ZXSDR BS8900 Hardware Manual
The heat exchanger consists of extracting core, heater, external
ventilation fan, internal ventilation fan and control panel. Two air
channels (inner and outer) are set to implement air convection.
Figure 3
shows the heat exchanger structure.
F
IGURE
3 H
EAT
E
XCHANGER
S
TRUCTURE
Transmission Equipment (Optional)
Transmission equipment is an optional configuration. The base-
band power cabinet reserves a space of 19" wide and 4 U high for
its installation.
The transmission equipment adopts - 48 V DC supply with 200 W
power consumption.
The transmission equipment completes transmission signals con-
version. ZXSDR BS8900 supports various types of transmis- sion
equipments, such as SDH, microwave, PDH optical transmis- sion
and HDSL.
Caution:
The transmission equipment demands a relatively small working
temperature range. Pay attention to the temperature in local en-
vironment for inside transmission equipment configuration since it
will decrease the BBU working temperature range.
Baseband Subrack
Figure 4
shows the ZXSDR BS8900 baseband subrack.
4
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