User's Guide

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