The Firmware Download Process - Symmetricom TimeProvider 1100 Reference Manual

The Firmware Download
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.
When the IMC module is in firmware download mode, most
commands are not executable because all users are logged off the
system; however, commands with an access level of NONE are
executable. Furthermore, if security is not enabled, for example no
users are assigned, any command is executable.
Notes:
Firmware upgrade files are periodically available from Symmetricom.
Contact Symmetricom customer support for information on firmware
upgrades that are available for the TimeProvider.
Refer to the TimeProvider User's Guide (097-58001-02) for more
complete firmware upgrade information.
The ACT-SWDL command places either the IMC or IOC module (depending on the
specified AID) in the firmware download mode so that firmware upgrades can be
downloaded to the modules. If IOCm (m = 1 or 2) is the specified AID, firmware is
transferred from the specified IOC to the redundant IOC.
Note: Firmware transfer between IOCs is not allowed if the
destination IOC is active.
Firmware download to the IMC or IOC module
When the TimeProvider receives the ACT-SWDL command for either the IMC or
IOC module, it automatically logs all users off of the system and locks the system
against new logins. The system then disconnects TL1 from the connection that sent
the ACT-SWDL command and starts the TimeProvider's internal Ymodem file
receiver on that connection.
Note: The Ymodem file receiver is not used in IOC-to-IOC firmware
transfers.
A Ymodem file sender utility, for example SynCraft or HyperTerminal, is required for
firmware downloads and it is this file sender utility that initiates the file transfer. If the
file transfer is not initiated by a Ymodem file sender within approximately 60 seconds
of the ACT-SWDL command being sent, the unit returns an error response and the
module returns to normal operation. If the file transfer is initiated within 60 seconds,
the transfer of the file to the module takes place.
097-58001-01 Revision E – September 2006
Chapter 2 TL1 Command Syntax and Description
Process

The Firmware Download Process

TimeProvider TL1 Reference Guide 29