Operation Manual

Installation requirements
DN9913471 © Nokia Networks Oy Internal Copy 25 (38)
Issue 1 en DRAFT 2 Draft
• BTS configuration
• Ambient temperature
• Direction of the temperature change
The power consumption is higher when the ambient temperature is decreasing
and the heating power of the BTS is increasing. When the ambient temperature is
rising, the heating power is reducing. Consequently, the power consumption of
the Nokia MetroSite GSM BTS in a given temperature varies according to the
direction of temperature change. Figure 4 presents the power consumption values
in different ambient temperature for three BTS configurations.
Figure 4. Power consumption of Nokia MetroSite BTS
o
C
Power / W
50
100
150
200
250
300
350
400
450
4 TRX + 2 FlexiHoppers
4 TRX
2 TRX
Ambient temperature rising
Ambient temperature falling
o
F
+32 +68
+122
+14
-40-58
-22 -4
+50 +104
+140+86
-50
-40
-30
-20
-10
0
+10
+20
+30
+40
+50
+60
TAmb