Terrasat IBUC 3, Operation Manual

Page: 102 / 236

7-12
|
IBUC
3
, IBUC
3 G
Operations Manual: Transmit Redundant Systems
Engineered to Endure
When installing the cable and waveguide assemblies, ensure that all connections are
weather tight. If the optional Rx reject filter is being used, attach it to the Tx
Redundancy waveguide output. Ensure that proper gasketing is used to prevent water
damage.
Water-Resistant Wrap
Terrasat recommends applying water-resistant wrap (such as mastic tape) to all
outdoor connectors to prevent water entry and subsequent water damage. Mastic tapes
are designed to flow and self-heal if cut or punctured. When applied spirally with the
proper tension, mastic tape forms a tight, continuous coating that permits little or no
moisture absorption or penetration. Terrasat provides water-resistant sealing tape for
Type-F and Type-N connectors.
Apply the mastic tape, as follows:
1. Ensure that all connectors are firmly tightened, dry, and free from all grease, dust,
and dirt.
2. Cut the mastic tape to the desired size. The tape should be long enough to cover the
connector completely.
3. Center the tape on the connector to be sealed and wrap the tape in a tight spiral
around the connector using a 50% overlap. Squeeze the tape tightly and ensure that
both ends of the tape have formed around the connector and the cable without any
gaps.
Apply tape to all connectors that may be exposed to moisture.
Typical Initial Setup
1. Connect the IFL coaxial cable between the Tx 1+1 interface module connector J2
(Tx L-band In) and the modem (Tx L-band Out).
2. Connect one M&C cable between the J4 connector of the Tx 1+1 interface module
and the J2 connector of the A: side IBUC (User Interface) and another M&C cable
between the J6 connector of the TX 1+1 interface module and the J2 connector of
the B: side IBUC.
3. Connect one Ethernet cable between the J5 connector of the Tx 1+1 interface
module and the J4 connector of the A: side IBUC and another Ethernet cable
between the J7 connector Tx 1+1 interface module and the J4 connector of the B:
side IBUC.
4. Connect a section of flexible waveguide between the OMT transmit port and the
Tx RF Output from the waveguide switch (or optional Rx Reject filter). The
waveguide should be attached to the antenna feed according to the manufacturer’s
instructions. Ensure that proper gasketing is used to prevent water damage.
5. Connect the waveguide switch cable between the J11 connector of the Tx 1+1
interface module and the 6-pin connector on the waveguide switch.