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4.2 V2 FOU AND V3 RU FIRMWARE UPGRADE EXPLANATION
For the FOU and RU, firmware can be upgraded locally or can be deployed over the fiber from the
Master Unit.
- Performing a local upgrade to an FOU or RU is the same basic process as described above for the
BDA/MU and must be performed by connecting directly to the device OMT port with a computer and
ethernet RJ45 cable. Any urgent firmware upgrade is recommended to be done locally as deploying
the firmware over fiber from the BDA/MU takes a longer time.
- To upgrade the FOU or RU firmware from the BDA/MU, the FOU and/or the Remote Unit must first
be discovered by the Master Unit by performing a scan in the Dashboard screen Dashboard ->
Graphic -> Scan. While the FOU upgrade is quite fast (5-10 minutes), the firmware upgrades for RUs
are much slower due to deploying the firmware data over the fiber link. Each RU can take
approximately 25-35 minutes to upgrade. Furthermore, when deploying new firmware to multiple
RUs using the Centralize Upgrade feature, the firmware is deployed one RU at a time in series. The
total upgrade time can become quite long. See Figure 161 below.
Figure 161: V3 BDA/MU Dashboard Scan for FOUs and RUs
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