User's Manual Part 3

RBS 2109 User’s Guide
• Ensure that airflow is not obstructed above or below the RRU, or through its
cooling flanges
• Install a fan unit to the RRU
• Install the RRU cabinet at a colder location
If the RRU temp indicator is ON (yellow) and the conditions are cold, perform
the following actions step-by-step until the fault ceases:
Note: The RRU will not start if it is too cold. It can take up to 75 minutes for
the internal heater to warm up the RRU.
• Ensure that the RRU is provided with AC Mains power, since the heater in
the RRU only works when AC Mains power is available
• Install the RRU cabinet at a warmer location
9.5 HW Replacement
This section describes how to replace faulty units identified in Section Fault
Localisation.
9.5.1 Flash Card Replacement
This section describes how to replace a faulty flash card.
Loading IDB and SW (Optional)
This section describes how to load the IDB and SW onto the new flash card.
1. Create and save an IDB. For more information, see chapter Site Installation
Tests in this manual.
2. From the Configuration menu in the OMT, select Load flash card.
3. In Flash card location, click Browse and select the location of the flash
card driver.
4. In Select IDB to use on flash card, click Browse and select the IDB to use.
5. In Select RBS SW to use on flash card, click Browse and select the
SW to use.
6. Click Load.
187EN/LZT 720 0090 Uen R1A 2004-09-17