Symmetricom TimeProvider 5000 User Manual page 375

Table 6-2. Troubleshooting Symptoms
Symptom
Upgrading firmware
retrieving file failed
Upgrading firmware failed
System in Holdover
GPS not tracking
(GPS LED is Amber)
098-00028-000 Revision F – May, 2012
Probable Cause
Firewall set to "Block" for
FTP or SFTP
FTP/SFTP server file
path configured
incorrectly
User name / password
Passive (PASV) FTP
mode being used.
Using Up and Left arrows
to move the cursor in
terminal program
Attempting to upgrade
the IMC with IOC file or
vice-versa.
Flash memory failed
No visible satellites
Wrong antenna type,
cable length, or power
level into GPS port on
IMC card
Chapter 6 Maintenance and Troubleshooting
Troubleshooting Procedure /
Corrective Action
show firewall
Use " " command to check
firewall settings.
set firewall
Use " " command to change
firewall settings.
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.
Verify that the user name and password
for the FTP/SFTP server is correct. Retry
Enable active mode on FTP server. The
TimeProvider 5000 only supports active
FTP.
Linux, Windows, and other third-party FTP
servers can be used in the upgrade
process of the TP5000.
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.
Verify path to correct file for upgrade.
Ensure that upgrade file is for the same
card-type being upgraded. Try upgrade
again with correct file path.
Retry upgrade. If upgrade fails again,
contact Symmetricom.
Check if GPS is set to auto or manual
show gps
using command. If set to
manual, verify that latitude and longitude
settings are correct. Try setting GPS to
set gps
auto mode with
Check GPS antenna for approved power
ratings, cabling for approved lengths, and
actual power level into GPS port on IMC
Chapter C, Installing the
card, as per
GPS Antenna The GPS engine
.
requires a gain at the antenna
connector input of the chassis to be
between 25 dB and 35 dB.
TimeProvider 5000 User's Guide 375
Troubleshooting
command.