Indicator Color Description
INPUT Green If the indicator is on, it indicates that the -48 V power input
is normal.
If the indicator is off, it indicates that the -48 V power
input is unavailable.
Table 3-2 describes the relation between the DC power input cables and the terminals.
Table 3-2 Relation between the DC power input cables and the terminals
Terminal
Identifier
Cable Cable Color Connected Terminal
RTN Power
grounding cable
Black OT crimp terminal
NEG Power cable Blue
NOTE
RTN: Return
3.2.3 Function Overview
The DC power supply provides output of -48 V or -60 V. It provides the following functions:
l EMC filtering, lightning proof, and short circuit protection.
l Various alarms, for example, no-input alarm, air breaker off alarm, invalid lightening-proof
alarm, and input undervoltage alarm.
3.2.4 Technical Specifications
Table 3-3 describes the technical specifications of the DC power supply.
Table 3-3 Technical specifications of the DC power supply
Item
Specification
Dimensions (height x
depth x width)
130mm x 393 mm x 41 mm
Input rated voltage -48V/-60V DC
Output voltage -48V:-38.4V to -57.6V DC
-60V:-48V to -72V DC
Output current 40 A
Maximum input current 40 A
3 Power Supply
Quidway S9300 Terabit Routing Switch
Hardware Description
3-10 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2010-12-15)
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