Terrasat IBUC - Page 28

IBUC Operation Manual
Terrasat Communications Inc.
Rev. A
4-2
line of sight from the antenna to the satellite. Lightning arrestors should be used at the
site to protect personnel and equipment. Size 3/0 or 4/0 AWG stranded copper wire
should be used to ground the IBUC, the PSUI and the LNB to the antenna frame and to
the lightning protection ground rod. For the higher power units with an external power
supply provide an isolation filter to reduce power line interference as required.
Preparation
Mounting Considerations:
Optional Mounting Brackets are available that will facilitate mounting for most antennas.
The ODU must be mounted such that:
- Sufficient support is afforded to the IBUC, the LNB and the PSUI to minimize the
effects of antenna sway in strong winds.
- Air movement across the heat fins is possible.
- The fan shroud (IBUC and PSUI) is mounted so that the louvers are facing the
ground.
- The fan intake and exhausts are free from any obstruction.
- The length of the PSUI cables is taken into consideration in determining the
mounting location of the PSUI.
Throughout installation and during any polarization, azimuth or elevation adjustment,
ensure that cables and waveguide are not crimped or pinched.
Power Requirements
Installation and connection to the line power
supply must be made in compliance with
applicable wiring codes and regulations.
Ensure AC power is off prior to disconnecting PSU
power cord. Turn off AC power to the unit using
installed circuit breaker or similar disconnecting
device.
After turning AC power source off, disconnect
Power Cord from PSU before servicing the unit.