TB8100 Installation Guide Installation 7© Tait Electronics Ltd June 2003 8mm AF spanner for the SMA connectors.You can also obtain the TBA0ST2 tool kit from your nearest Tait Dealer orCustomer Service Organisation. It contains the basic tools needed to install,tune and service the TB8100 BSS.1.7 VentilationAlways ensure there is adequate ventilation around the TB8100 BSS. Donot operate it in a sealed cabinet. You must keep the ambient temperaturewithin the specified range, and we strongly recommended that you ensurethat the cooling airflow is not restricted.Important The cooling fans are mounted on the front panel and willonly operate when the panel is fitted correctly to the frontof the subrack. To ensure adequate airflow through theBSS, do not operate it for more than a few minutes with thefront panel removed (e.g. for servicing purposes).Ambient Air Temperature SensorThe ambient air temperature readingfor the TB8100 BSS is provided bythe ambient air temperature sensorPCB b fitted to the PA control PCB.The sensor PCB is inserted throughslots in the control PCB and heatsinkto be positioned between the heatsinkfins.Important If the sensor PCB is to provide accurate ambient tempera-ture readings, it must have forced airflow and must notcome into contact with the metal of the heatsink fins. Donot stack PAs with the fins together. It is possible forthe fins on one heatsink to slide between the fins on theother heatsink. This can damage the sensor PCB, and pos-sibly result in the heatsink fins becoming locked together.b