Cooling; Replacing The Cooling Fans; Figure 185: Mts 4 Airflow - Motorola DIMETRA MTS 4 Installation, Configuration, And Service Manual
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Applicant: Motorola Solutions
Equipment Type: ABZ89FC5827 / 109AB-5827
Cooling Fans | 309
Figure 185: MTS 4 Airflow
Cooling
Natural convection cooling is applied. For example there is no fan when MTS 2 operates with a load of 295W for 2
BRs, low power PA, plus a charge current of 3 A at + 30 °C.
Forced air from fans placed below units is used when for example MTS 4 operates with a load of 640W for MTS 4
with 2 BRs, MTCC, high power PA plus a charge current of 6 A at + 30 °C.
For all configurations of MTS, see
Table 6: Typical Power Loads and Heat Dissipation Values – Expansion Cabinet
400 MHz Configuration on page 68
Replacing the Cooling Fans
Procedure:
1
Warning: When unplugging the connector from the PSU, wait a few second for the fans to stop.
Open the housing of the cabinet of MTS and unplug the connector from the PSU.
2 Unlock the fan kit by unscrewing the M3x8 screws with serrated washers.
6802800U74-AD | September 2014 |
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