Figure 4-54 Panel Of The Psu (Ac/Dc); Table 4-67 Leds On The Panel Of The Psu (Ac/Dc) - Huawei BTS3900 V100R003 Hardware Description

4 BTS3900 Components

Figure 4-54 Panel of the PSU (AC/DC)

(1) Power LED
Functions
The PSU (AC/DC) performs the following functions:
l
l
LEDs
Table 4-67

Table 4-67 LEDs on the panel of the PSU (AC/DC)

LED
Power LED
Protection LED
4-74
Converts 220 V AC power into -48 V DC power and supplies -48 V DC power to the
DCDU-01.
Monitors the unit and reports alarms related to PSU faults (such as output overvoltage, no
output, and fan faults), alarms related to PSU protection (such as overtemperature
protection, and input overvoltage/undervoltage protection), and PSU out-of-position alarm,
if any.
describes the LEDs on the panel of the PSU (AC/DC).
Color
Green
Yellow
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(2) Protection LED
Status
On
Off
Off
BTS3900
Hardware Description
(3) Fault LED
Description
The power supply is
normal.
There are faults (such
as no AC input, or
overvoltage and
undervoltage of AC
input) on the mains,
or the PSU has no
output.
The running status is
normal.
Issue 04 (2011-02-15)