098-00564-000 Revision A3 – July, 2013
TimeProvider 2300/2700 User’s Guide
257
Chapter 5 Maintenance and Troubleshooting
Troubleshooting
Upgrading firmware
retrieving file failed
Firewall set to “Block” for
FTP or SCP
Use
command to check
firewall settings.
Use
command to change
firewall settings.
FTP/SCP server file path
configured incorrectly
Ensure that the file name and path in the
command line string exactly matches the
file name, including extension name, and
path to the upgrade file.
User name / password
Verify that the user name and password
for the FTP/SCP server is correct. Retry
upgrading firmware.
Passive (PASV) FTP
mode being used.
Enable active mode on FTP server. The
TimeProvider 2700 only supports active
FTP.
Linux, Windows, and other third-party FTP
servers can be used in the upgrade
process of the TP 2300/2700.
Using Up and Left arrows
to move the cursor in
terminal program
Some terminal programs produce
unreadable characters when using the Up
and Left arrow buttons to retrieve and
modify previous commands. Type
commands in directly with alpha-numeric
keys.
Upgrading firmware failed
Flash memory failed
Retry upgrade. If upgrade fails again,
contact Symmetricom.
System in Holdover
GNSS not tracking
(GNSS LED is Amber)
No visible satellites
Check if GNSS is set to auto or manual
using
command. If set to
manual, verify that latitude and longitude
settings are correct. Try setting GNSS to
auto mode with
command.
Wrong antenna type,
cable length, or power
level into GNSS port
Check GPS/GLONASS antenna for
approved power ratings, cabling for
approved lengths, and actual power level
into GNSS port. The GPS/GLONASS
engine requires a gain at the antenna
connector input of the chassis to be
between 15 dB and 30 dB.
Table 5-2. Troubleshooting Symptoms
Symptom
Probable Cause
Troubleshooting Procedure /
Corrective Action