Symmetricom 1000 User Manual

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097-58001-02 Revision G – April 2008
TimeProvider User’s Guide 187
Chapter 6 Maintaining and Troubleshooting the TimeProvider
Repairing the TimeProvider
Repairing the TimeProvider
Repairing the TimeProvider is limited to replacing cards. Refer to 
, on page 82, for information on how to properly handle cards and modules to 
prevent electrostatic or physical damage.
To remove an IOC, loosen the captive screws and lift the removal tabs on each side 
of the card, then slide the module out of the shelf. To remove the IMC, loosen the 
captive screws and pull the module out of the shelf using the U-shaped handle on 
the front panel. Place the module on an anti-static surface or in an anti-static bag.
To remove an Input or Output module, loosen the captive screws and then pull the 
module using the captive screw. Place the module on an anti-static surface or in an 
anti-static bag.
Obtaining Technical Assistance
If you have technical questions about the TimeProvider, call Symmetricom Global 
Services (SGS) at 888-367-7966 (toll-free in USA only), 408-428-7907, or 
+49 700 3288 6435 in Europe, Middle East, or Africa. You can also email your 
technical questions to support@symmetricom.com or 
emeasupport@symmetricom.com.
Upgrading the Firmware
You can upgrade the firmware in the IMC or IOC using TL1 commands and software 
available from Symmetricom. Only users with Admin-level or Security-level access 
can execute the command. The command places the management module in the 
firmware download mode and terminates all sessions except the session performing 
the upgrade. During the upgrade process, no new sessions are allowed. Refer to 
the TL1 Reference Guide for details on the upgrade process.
Use the following TL1 command to download the firmware.
Warning: To avoid possible electrostatic damage to the module 
or panel, place it in a static-free bag or on a static-free surface.
Caution: To avoid a possible service call, do not issue any additional 
TL1 commands to the TimeProvider, do not remove power from the 
TimeProvider, and do not remove an IOC or IMC from the shelf during 
the firmware upgrade process (minimum 30 minutes). Doing so could 
corrupt the flash memory in a card, disabling the TimeProvider.