User's Manual
Table Of Contents
- Table of Contents
- System Description
- Microwave Path Engineering Basics
- Engineering Guidelines
- Network Turnup Procedure
- User Interface Guide
- 1. Navigating the Terminal Menu
- 2. Menu and System Control
- 3. Menu Descriptions
- > System Status
- > Main Menu
- > System Configuration
- > RF Link Configuration
- > RF Link Performance History (Main Screen)
- > RF Link Error History
- > RF Link Max/Min Received Power History
- > RF Link Min/Max Received Signal Quality History
- > Datapath Provisioning
- > 4xE1 Module Configuration/Status/History (Main Screen)
- > E1x Status/Configuration/Loopback
- > E1x Performance History
- > T1 Module Configuration/Status/History (Main Screen)
- > T1x Status/Configuration/Loopback
- > Ethernet Switch Module Configuration/Status/History (Main Screen)
- > Ethernet Switch Configuration
- > Ethernet Switch Status
- > Management/Utilities (Main Screen)
- > Ping Utility
- > Firmware Upgrade Utility
- > RF Link Management Bridge Configuration
- > System Alarms
- Detail Level Procedures
- MIBs
- Troubleshooting Guide
- 1. Overview
- 2. LED Indicators
- PWR LED
- TST LED
- RF DWN LED
- RF LOW LED
- T1 Interface Alarms
- E1 Interface Alarms
- 1. Display the E1(x) Status screen and check the E1(x) Interface Alarm field to identify the active alarm.
- 1. Verify that the E1 cable is connected to the E1 interface on the TRACER 64x0.
- 2. Verify the connections at the opposite end of the E1 cable.
- 3. Verify that the framing mode (framed, multiframed, or unframed) is the same for both the TRACER 64x0 and the E1 equipment.
- 2. Verify the cable connections for the E1 interface are solid.
- 2. Verify the cable connections for the E1 interface are solid.
- LAN LEDs
- 3. RF Errors
- 4. Step-by-Step Troubleshooting
- 5. Installing/Troubleshooting the TRACER Hardware
TRACER 6000 Series Integrated System Manual Section 8 Troubleshooting Guide
612806420L1-1D Copyright © 2005 ADTRAN, Inc. 127
CRC
CRC errors indicate that the receiver is unable to synchronize to the CRC-4 frame pattern of the received
E1 signal.
Recommended Actions:
1. Verify the TRACER 64x0 unit and the attached equipment are configured for the same signaling
(M
ULTIFRAMED, UNFRAMED, or FRAMED).
2. Verify the cable connections for the E1 interface are solid.
LAN LEDs
If the LAN LED is OFF, the TRACER 64x0 is not able to detect an active Ethernet link on the particular
10/100BaseT/TX interface.
Recommended Actions:
1. Check all Ethernet cable connections to verify they are properly plugged in (making sure the tab on the
connector snaps into place).
2. Connect the 10/100BaseT/TX interface to a “known good” Ethernet port to verify the TRACER port is
functioning properly.
3. Try another Ethernet cable.
3. RF ERRORS
RF errors can range from a nonviable microwave path to loose RF connectors.
Nonviable path conditions could be caused by physical obstructions such as buildings, mountainous terrain,
trees, etc., as well as other physical limitations such as excessive path distances and in-band RF interference.
These types of errors are remedied by performing a detailed line-of-site microwave path study to determine
whether a microwave link is feasible for the terrain and environment under consideration.
If after performing a microwave path study the system is still not operational, ensure that the antennas are
properly aligned. Note that alignment must be achieved in both elevation and azimuth for optimal link
performance. The TRACER 64x0 can be used to aid in antenna alignment by looking at the real-time signal
strength numbers or the
RX POWER “fuel gauge” on the SYSTEM STATUS or SYSTEM OPTION menu pages or by
measuring the DC voltage (relative to ground) at the
RSSI front panel test jack. Optimal antenna alignment is
achieved by peaking the front panel
RSSI voltage or the RX POWER “fuel gauge” on the TRACER 64x0
terminal display. Consult the ADTRAN TRACER Data Sheet included with the unit to verify that the actual
receive signal level agrees with the calculated receive signal.
An
RSSI test point, located on the front panel, provides a DC voltage level (relative to the GND test point) that
corresponds to the amount of signal being received from the far end’s transmitter. The voltage at this test point
can vary from approximately 0 to 5 VDC. An RSSI calibration sheet is shipped with the system to provide the
installer a cross-reference between actual received signal level (in dBm) and RSSI voltage. This sheet is
useful for verifying link budget calculations and ensuring proper equipment installation.
4. STEP-BY-STEP TROUBLESHOOTING
The logical troubleshooting flow presented in this section can be used to set up your TRACER 64x0 system or
to diagnose a previously installed system. Please contact Technical Support at any stage during installation
and/or troubleshooting if you require assistance.