User's Manual Part 3

RBS 2308 and RBS 2309 User’s Guide
P010615A
Not used
1
2
3
5
6
Figure 81 Measuring Voltage on IXU Power Cable
4.
Replace the PIB in the MBU, see Section 10.5.6 Replacing a PIB on
page 227
5.
Replace the IXU, s
ee Section 10.5.4 Replacing an IXU on page 219
IXU Temp
If the yellow IXU temp indicator is on and the conditions are hot, perform the
following:
• Ensure that airflow is not obstructed above or below the RRU, or through
its cooling flanges
If the yellow IXU temp indicator is on and the conditions are cold, perform the
following:
• Ensure that the IXU is provided with AC power for the internal heater
Note: Under certain circumstances it can take up to 75 minutes for the IXU
to start up.
Note: RBS units from certain R-states are less sensitive to low temperatures
and have therefore no internal heater. For more information about unit
R-states from which these improvements apply, see chapter Product
Description, section Operating Environment in the following manual:
RBS 2308, RBS 2309, and RBS 2109
Hardware Reference Manual
EN/LZT 720 0058
2
01
EN
/LZT 720 0027 Uen R8A 2006-06-27