Technical information

Routine Maintenance
29
SX-200 EL/ML Remote Software Download
Requirements:
 A 4 MB Flash card. Make sure the toggle switch on the edge opposite
the connector edge of the Flash card has the Write Protect disabled.
 System option 109 (Remote Software Download) must be enabled.
This is a purchasable system option.
 The latest software downloaded onto your PC provided by MITEL
On-Line or MITEL Product Support.
Upgrading the System
Downloading LIGHTWARE 19 software for the BCC III and the MCC with
a 4 Meg Flash card requires a two step procedure. You download the
software from the MCC first and then download the software for the BCC
III. It is recommended that you back up your database before you
perform a system upgrade.
Downloading LIGHTWARE 19 software for the BCC III and the MCC with
a 4 Meg Flash card requires a two step procedure. You download the
software from the MCC first and then download the software for the BCC
The remote software download time can take up to 3
hours. We recommend that you do this operation during
a slow time since the traffic on the switch affects the
download time. To shorten the remote software
download time to approximately 90 minutes, increase the
size of the packet length to 900 and change the block
check type to 3 bytes CRC.
WARNING: After the files are loaded onto the flash, reboot the
system to complete the upgrade. Once the system comes
back up, the installed BCC III cards require an additional 20
minutes before returning to service. During this time, the BCC
III cards must not be interrupted. If they are reset or powered
down during this 20 minute timeframe, their self upgrade will
fail and the cards will need to be repaired. A flashing green or
red LED on a BCC III means the card is performing the self
upgrade.