Refer to "Setting up a Terminal Emulator" on page491 for more information on using a ter
minal emulator software to communicate with SecureSync via serial port.
5.1.11 Troubleshooting the Front Panel Cooling Fan
The cooling fan (located on the front panel, to the right of the LED time display) is a tem
perature controlled cooling fan. Temperature sensor(s) determine when the cooling fan needs to
turn on and off. It is normal operation for the cooling fan to not operate the entire time
SecureSync is running. It may be turned off for long periods at a time, depending on the ambi
ent and internal temperatures.
To verify the cooling fan is still operational, power cycle SecureSync unit (if AC and DC power
are both applied, momentarily turn off the AC power switch and disconnect the DC power con
nector).
Note: If the internal temperature in the unit is below 30 degrees Celsius, the fan
may not turn on as part of the power-up sequence. In this case, it is recommended
to let the unit “warm up” for approximately 30 minutes, in order to allow the unit
to get to the appropriate temperature.
See also: "Temperature Management" on page281
5.1.12 Troubleshooting – Network PCs Cannot Sync
In order for clients on the network to be able to sync to SecureSync, several requirements must
be met:
1.1.
The PC(s) must be routable to SecureSync. Make sure you can access SecureSync Web
UI from a PC that is not syncing. If the PC cannot access the Web UI, a network issue
likely exists. Verify the network configuration.
2.
The network clients have to be configured to synchronize to SecureSync's address. For
additional information on syncing Windows PC's, see
http://support.spectracom.com/articles/How_To/Synchronizing-Windows-
Computers. The last section of this document also contains troubleshooting assistance
for Windows synchronization. For UNIX/Linux computer synchronization, please visit
http://www.ntp.org/.
3.
If at least one PC can sync to SecureSync, the issue is likely not with SecureSync itself.
The only SecureSync configurations that can prevent certain PCs from syncing to the time
server are the NTP Access table and MD5 authentication. See "Configuring NTP Sym
326 SecureSync User Reference Guide
APPENDIX
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