Chapter 1 Cabinet
Note:
The lightning subrack configuration is unnecessary when external
dry contact and external monitor are not required for GE optical
access to Abis interface.
Power Supply Subrack
Composed of AC distribution unit, DC distribution unit, rectifier and
monitoring unit, the power supply subrack adopts a standard 19
inch structure with a 6 U height.
Figure 7
shows the structure of power supply subrack.
F
IGURE
7
P
OWER
S
UPPLY
S
UBRACK
S
TRUCTURE
1.
DC distribution unit
2. Monitoring unit
3. Rectifier
4. AC distribution unit
Table 4
lists the description of each composition unit of power sup-
ply subrack.
T
ABLE
4 P
OWER
S
UPPLY
S
UBRACK
C
OMPOSITION
U
NIT
D
ESCRIPTION
Unit
Quantity
Description
AC distribution
unit
1
Provides 2 sets of standby outputs in
standard configuration.
DC distribution
unit
1
Provides overload protection for DC
output branch and battery branch.
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7