Specifications

GEMINI
2
Traffic Outstation Handbook
667/HB/32600/000 Page 57 Issue 11
4.2.15 RMS Firmware Download Facility
The Siemens GEMINI
2
Traffic Outstation supports the remote download of firmware
from an RMS Instation over a PSTN link. The Outstation configures its modem for
19200,8,N,1 operation.
This facility is not supported when an RMS Instation is connected to the local handset.
The download of firmware is initiated by the RMS operator. When the download has
completed the Outstation switches to using the downloaded firmware when instructed to
do so by the RMS Instation. If required by the RMS operator, the Operations Log may
be uploaded to the RMS Instation, before the switch takes place.
The Outstation performs a reboot and initialisation in order to switch to the downloaded
firmware. During the switch over, the new firmware will attempt to execute with the
configuration data that the previous version of firmware used. If the new firmware
requires configuration data items not contained within the recovered configuration data,
the unit must be reloaded with a new configuration.
The RMS operator is informed of firmware download completion, switch firmware
request and switch firmware completion only when the unit has been configured.
If the version number of the download firmware is lower than that of the executing
firmware OR the part numbers differ and the version numbers match, then it will not be
possible to revert back to the executing firmware once the switch has occurred.
For example
Downloaded firmware 12686 Issue 2, executing firmware 12686 Issue 3
Downloaded firmware 12686 Issue 2, executing firmware 12687 Issue 2
In both the above scenarios, the Outstation will contain only firmware 12686 Issue 2
after the switch.
If the version number of the download firmware is higher than that of the executing
firmware, then it will be possible to revert back to the executing firmware once the
switch has occurred.
For example
Downloaded firmware 12686 Issue 3, executing firmware 12686 Issue 2
In this scenario the Outstation will contain both firmwares after the switch.
The Outstation continues to operate normally during the download of firmware.