shows the relationships between the AC power chassis, power modules, and
chassis parts. Each DC power input contains one -48 V power input and one RTN input. Two
separate RTN inputs join together on the board.
Figure 1-8
Power supply architecture of the USG9580 AC power system
AC1
AC2
AC power chassis
PEM-A3
CMU
PEM-B3
PEM-B4
PEM-A2
AN-A5/FFU-A7
FAN-A5/FFU-A7
FF
AN B6
STA
TT TUS
A
A
FFU
FAN F F
RS485-1
RS485-2
TA
TT TUS
A
A
Eudemon8000E Series
RUN
ON
OFF
ALM
NEG(-)
RTN(+)
PEM
-48~-60V;8.60A
RUN
ON
OFF
ALM
NEG(-)
RTN(+)
PEM
-48~-60V;8.60A
RUN
ON
OFF
ALM
NEG(-)
RTN(+)
PEM
-48~-60V;8.60A
RUN
ON
OFF
ALM
NEG(-)
RTN(+)
PEM
-48~-60V;8.60A
RUN
ON
OFF
ALM
NEG(-)
RTN(+)
PEM
-48~-60V;8.60A
RUN
ON
OFF
ALM
NEG(-)
RTN(+)
PEM
-48~-60V;8.60A
RUN
ON
OFF
ALM
NEG(-)
RTN(+)
PEM
-48~-60V;8.60A
RUN
ON
OFF
ALM
NEG(-)
RTN(+)
PEM
-48~-60V;8.60A
A1 A2
B1 B2
A3 A4
B3 B4
zone1
zone1
zone1
zone1
zone1
zone1
zone2
zone2
zone2
zone2
zone3
zone3
zone3
zone3
zone4
zone4
zone3
zone3
zone4
zone4
Rear view
Front view
DCa
DCb
An AC power chassis is 2 U high. Install the AC power chassis in the same cabinet as the
device. If they cannot be installed in the same cabinet, install them in as close proximity as
possible. The two AC power chassis work in 1+1 backup mode. Each AC power chassis has
four circuit breakers and eight AC power inputs. The current of each air circuit breaker is 20
A.
HUAWEI USG9500 Series
Hardware Guide
1 Hardware Overview
Issue 03 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
17