IBUC Operation Manual
Terrasat Communications, Inc.
Rev. A
7-31
will appear. Enter the default password of 1234. Please refer to the Rx 1+1 HHT Menu
Tree attached to find how specific functions are accessed through the HHT.
LEDs:
There are seven leds mounted on the Rx 1+1 Interface Module housing to provide
visual indications of Rx 1+1 Interface Module status.
1+1 Power – indicates power is supplied to the unit.
Activity – indicates Ethernet activity.
A ONLINE – indicates A side is receiving the Rx signal from the antenna.
A ALARM – Red indicates a Major alarm is present for position A. Green indicates OK.
B ALARM – Red indicates a Major alarm is present for position B. Green indicates OK.
B ONLINE – indicates B side is receiving the Rx signal from the antenna.
NORMAL/EMERGENCY – Red indicates hardware override of the waveguide switch is
active. Green indicates the M&C has control of the waveguide switch.
ALARMS:
Note that certain alarms are configurable giving the user the ability to define them as
Major or Minor alarms. Major alarms will cause switching.
SWITCHES:
There are two switches (SW1 and SW2) that can be accessed by removing the small
cover from the front panel.
SW1 allows the user to do a manual override of the waveguide switch (EMERGENCY
mode). Once the switch is toggled to the EMERGENCY position, the user will be able to
do the override to position A or B by using the switch SW2 (Momentary switch). Please
note that in EMERGENCY mode the M&C doesn’t have control of the waveguide
switch. To return to NORMAL operation (Redundancy), SW1 has to be toggled back to
“NORMAL”.
Mechanical Interface – TX redundancy systems are mounted on a mounting plate to
facilitate installation. The interface box, IBUC’s, and the TX RF switch with associated
cables and waveguide are mounted on a single plate. Power supply units are mounted
on a similar plate that is meant to be mounted close to the IBUC system. See Chapter
9 for outline drawings of the redundancy mounting system.
RX redundancy systems can be ordered with all components mounted on a single plate.
For applications where the RX switch and LNBs are mounted directly to the antenna
feed, a separate mounting bracket for the interface box is provided.
Service and Maintenance
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