Table 3-11 Relation between the DIP switch settings and the fan quantity
SW2-6 SW2-5 Fan Quantity
ON ON 6
ON OFF 8
OFF ON 4
OFF OFF 10
Table 3-12 provides the relation between the settings of the DIP switches and the speed
adjustment mode of the fans.
Table 3-12 Relation between the DIP switch settings and the speed adjustment mode
SW2-8 SW2-7 Speed Adjustment Mode Speed Adjustment
Scheme
ON ON Measure the temperature on the
air intake vent
Scheme 1
ON OFF Measure the temperature on the
air exhaust vent
Scheme 2
OFF ON Reserved Scheme 3
OFF OFF Stop the fan and measure the
temperature on the air intake
vent
Scheme 4
Prerequisites
The device must be powered off.
Procedure
Step 1 Use a screwdriver to unfasten the screws anticlockwise on the front panel of the fan tray, as
shown in (1) of Figure 3-8.
UA5000 Universal Access Unit Product
Commissioning Guide-PVM CLI 3 Stand-Alone Commissioning
Issue 04 (2012-06-25) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
20
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