Huawei ATN 950B - Technical Specifications; EPS30-4815 AF External AC Power Supply System; Structure and Functions

CAUTION
Multiple power supplies are accessed for the equipment. When powering off the equipment,
make sure that these power supplies are disabled.
Do not remove or insert the board with power on.
2.2.5 Technical Specifications
The technical specifications of the PIU cover the board dimensions, weight, power consumption,
and input voltage.
Table 2-3 lists the technical specifications of the PIU.
Table 2-3 Technical specifications of the PIU
Item Technical Specification
Board dimensions (mm) 41.4 (H) x 229.9 (D) x 21.0 (W)
Weight (kg) 0.12
Power consumption (W, room temperature) 0.5
Input voltage (V) -38.4 to -72.0
2.3 EPS30-4815AF External AC Power Supply System
This section describes the EPS30-4815AF external AC power supply system in terms of the
appearance, functions, front panel, and technical specifications.
2.3.1 Structure and Functions
The EPS30-4815AF external power supply system inputs 220 V AC power and converts the
power to -53.5 V DC required by the ATN 950B. When input of the 220 V AC power stops, the
EPS30-4815AF automatically switches to the storage battery, which provides power to the
equipment. This ensures uninterrupted power supply to the equipment. The EPS30-4815AF
consists of the rectifier modules, monitoring module, and AC/DC power distribution frame.
Structure
Figure 2-5 shows the appearance of the EPS30-4815AF and Table 2-4 lists the components of
the EPS30-4815AF.
ATN 950B Multi-service Access Equipment
Hardware Description 2 Power Supply System
Issue 03 (2012-07-23) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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