User's Manual
Table Of Contents
- 1 Introduction
- 2 Antenna Specifications and Installation
- 3 Installing the Repeater
- 3.1 Overview of the Installation Procedure
- 3.2 Required Tools and Materials
- 3.3 Unpacking
- 3.4 Mounting the Repeater
- 3.5 Grounding
- 3.6 Verifying Isolation between Donor and Mobile Antennas
- 3.7 Verifying the Link between the BTS and the Repeater
- 3.8 Antenna Connections
- 3.9 Powering Up the Repeater
- 3.10 External Alarm Connections
- 4 Initial Setup and Commissioning
- 5 Administrative Operations
- 6 Monitoring and Troubleshooting
- Appendix A: Specifications (@+25°C)
Axell D-SBR 3709S Repeater
PRODUCT DESCRIPTION AND USER’S MANUAL
© Axell Wireless Ltd
Doc PN 00038UMCD Rev. 1.6 39
6.1.2 Internal LEDs
Two LEDs (UL and DL) located inside the repeater provide an indication on the UL and
DL signals.
The following figures show an example of the LED locations (the location may differ on
your unit).
Figure 6-2. Axell D-SBR 3709S Internal View
The following table provides a description of the UL and DL LED troubleshooting
procedures.
Color Status and Probable Cause Recommendation
Green Normal operation -
Red Major error The Repeater must be replaced
Blinking
Green
Low input signal from
Donor/Mobile antenna
Check the Donor antenna input power
Orange
High out of band signal input
power from Donor/Mobile
antenna
Redirect donor azimuth or add attenuator before
base port.
Caution! Disconnect power to the repeater before
connecting the attenuator. Once installed,
reconnect power.
Blinking
Orange/red
User mute
System mute
- Due to isolation problem or
temperature
Check gain of repeater. If gain is minimum, then it is
likely an isolation problem -> improve the isolation.
Reset the Repeater by turning if off and on again. If
the fault continues, replace the unit.
DL
UL
LEDs