TB9400 Installation and Operation Manual
Installation
51
© Tait International Limited November 2019
4.1
Before You Begin
4.1.1
Equipment Security
The security of your base station equipment is a high priority. If the site is
not fully secure, the base station should at least be locked in a secure,
ventilated cabinet to prevent unauthorized access.
4.1.2
Grounding and Lightning Protection
Electrical Ground
The base station modules are grounded by physical contact between the
module case and the subrack. To ensure a good ground connection you
must tighten each module retaining clamp securely (refer to
for the correct torque).
A threaded grounding connector is provided on the rear of the subrack for
connection to the site ground point (refer to
for more details).
Lightning Ground
It is extremely important for the security of the site and its equipment that
you take adequate precautions against lightning strike. Because it is outside
the scope of this manual to provide comprehensive information on this
subject, we recommend that you conform to your country’s standards
organization or regulatory body.
4.1.3
Equipment Ventilation
Always ensure there is adequate ventilation around the base station (refer
to
“Cabinet and Rack Ventilation” on page 52
).
Notice
Do not
operate it in a sealed cabinet. You
must
keep the
ambient temperature within the specified range, and we
strongly
rec-
ommended that you ensure that the cooling airflow is not restricted.
Notice
The cooling fans are mounted on the front panel and will only
operate when the panel is fitted correctly to the front of the subrack. To
ensure adequate airflow through the base station, do not operate it for
more than a few minutes with the front panel removed (e.g. for servicing
purposes).
4.1.4
Ambient Temperature Sensor
The ambient temperature reading for the base station is provided by the
temperature sensor located on the front panel circuit board.
