Huawei DBS3900 Installation Manual page 16

DBS3900 (ICR)
Installation Guide
Figure 3-2 IMB03
(1) NO STEPPING sign
(4) Slot assignment label
Figure 3-3
Figure 3-3 BBU
Power devices are the DCDU-03B, DCDU-11B, and AC/DC and DC/DC power devices.
3-4
device.
Issue 12 (2015-04-30)
shows a BBU.
shows a DCDU-03B. Figure 3-5
Figure 3-7 shows a DC/DC power device.
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3 Information to Be Known Before the Installation
(2) Protective plate
(5) Cable outlet
shows a DCDU-11B. Figure 3-6
(3) Cover plate
(6) Dust disposal vent
shows an AC/DC power
Figure
11