Chapter 1: Introduction
ZoneDAS User Guide
Page | 8
Table 2
BU LEDs
LED
COLOR
STATUS
DESCRIPTION
MGMT port
(Management)
Green
(Left)
Blinking
The BU is transmitting or receiving to/from an Ethernet device.
Amber
(Right)
On
The
MGMT
port is connected.
None
Off
The
MGMT
port is not connected to a compatible device, or the port is
disabled.
PWR (Power)
Green
On
The BU is powered on and functioning properly.
Off
The power is off or the system is malfunctioning / not ready.
ALM (Alarm)
Red
On
There is a hardware failure, such as device overheat, wrong voltage, or
abnormal fan speed.
Blinking
The BU is being reset.
Off
The system is functioning normally.
BU-RF Module
PWR (Power)
Green
On
The inserted RF module is powered on.
Blinking
Firmware upgrade in progress; do not disconnect power supply.
Off
The inserted RF module is not ready.
ALM (Alarm)
Red
On
The system detects an operational error.
Off
The inserted RF module is functioning normally.
BU-SD Module
RUx port
Green
(Left)
On
An RU is connected to this port and receiving power from the BU.
Blinking
An RU is attempting to connect to this port.
Off
The connected RU is not powered on.
Amber
(Right)
On
Cable signal loss between the BU and the connected RU has
exceeded the threshold.
Blinking
An RU hardware failure, such as device disconnection, high device
temperature, or abnormal fan speed, is detected.
Off
The connected RU is functioning properly.
1.3.3 RU (Remote Unit)
Remote Units are important because they are the active antennas that actually broadcast
the signals that are routed through the BU. Being smart, active devices, they also have LED
indicators on their front panels that show their current condition. These LEDs are divided into
two groups: one reports on the RU-MB; the other reports on the RU-RFs. The figure below
shows the front panel and where the LEDs are located, and the tables that follow will
provide the details.
Figure 4
RU Front Panel
