Firmware Upgrade

the v1.5.3 firmware will lose communications during this time, so a planned maintenance outage is necessary.

It is only necessary to download 1 image of the Router to v1.5.3 and reset the Remotes in order for them to rejoin the network, unless the associated Burst Controller is running BFAT. If that is the case, it is suggested that BFAT be disabled, and that the STDMA Preamble be increased. This will allow restora- tion of communications to all Remotes, with reduced performance. Once the straggler Remote(s) have v1.5.1 modem code loaded, BFAT can be re-enabled. The appropriate Preamble length will be reset automatically when BFAT is running.

Setting v1.5.2 Compatibility in Hub Modems

Telnet into the TDM Outbound and Burst Controller Hub units associated with the straggler Remote(s) and follow the steps below.

Figure D-17Main Menu screen, CLI

Appendix D - Network Migration

D-13

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Cables to Go CDM-570L manual Setting v1.5.2 Compatibility in Hub Modems, Figure D-17Main Menu screen, CLI