User's Manual

P25net Channel Controller Operations Manual
2-3
2.5 Installation Considerations
Careful attention to the following installation suggestions should result in the best unit/system
performance. Figure 2-1 provides overall unit dimensions.
The P25net CC must be installed in a structure, which provides both protection from the
weather and assurance of ambient temperatures between -0 and +60 degrees C. Since the unit
is neither splash proof, nor corrosion resistant, it must be protected from exposure to salt spray.
When the unit is mounted in a cabinet with other heat-generating equipment, the use of a rack
blower is suggested to keep the cabinet interior temperature rise to a minimum.
2.5.1 Mounting
For applications such as mobile command centers or transportable cases or any other
application where some degree of shock and vibration is expected, the P25net CC must be
mounted with support brackets in addition to the front mounting screws. For fixed applications
such as floor mounted cabinets or racks in a fixed equipment room, rear supports are not
required.
2.5.2 Cooling
The P25net CC depends on natural convection for its cooling. It must be mounted in a way that
allows for sufficient air circulation to keep the ambient temperature around the unit from
exceeding +60C. Use forced air-cooling in the cabinet if necessary. The P25net CC generates
approximately 50 BTU/Hr heat.
2.5.3 Front Panel Indicators
INDICATOR DESCRIPTION
Power A Power Source A is present
Power B Power Source B is present
S1 Green when 10MHz GPS Reference
connected at rear panel input
S2 Future use
S3 Future use
Channel Status Green when channel is under BSC
control; flashing otherwise (Fallback
Mode)
Tx Red when channel is transmitting;
also will indicate during a firmware
update procedure and at power on or
software reset.
Rx Orange when channel receives a
valid P25 signal; also will indicate
during a firmware update procedure
and at power on or software reset.