Figure 4-55
Panel of the power subrack (AC/DC)
(1) Power input wiring terminals
(2) Power switch of the batteries
(3) Wiring terminals for batteries
(4) Power output wiring terminals
Ports
describes the terminals and switch on the power subrack (AC/DC).
Table 4-68
Terminals and switch on the power subrack (AC/DC)
Terminal/Switch
Description
Power input wiring terminals
These terminals are used for the connections of
the AC input power cables.
Power output wiring terminals
The LOAD1(-) and LOAD2(-) wiring
terminals are used for the connections of the
-48 V power cables, and the RTN(+) wiring
terminals are used for the connections of the
-48 V RTN cables.
Wiring terminals for batteries
The BAT(-) wiring terminal is used for the
connection of negative pole for the batteries,
and the BAT(+) wiring terminal is used for the
connection of positive pole for the batteries.
Power switch of the batteries
The power switch controls the connection of
the batteries.
4 BTS3900 Components
BTS3900
Hardware Description
4-76
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Issue 04 (2011-02-15)