User's Manual

C
onfidential & Proprietary
2) Main Com/Div Unit (MCDU)
MCDU combines TX signals that are delivered from MDBU per frequency band and delivers the
signals to four ODUs. This unit adds signals
them to ROU. It also combines RX signals from up to four ODUs and sends them to up to four
MDBUs. In this case, the unit extracts signals of FSK modems, which are sent in a combined
form with RX signals, and th
en delivers the signals to MCU.
The unit has a port to interface with VHF&UHF signals. It has ATT for input monitoring and input
control.
VHF+UHF
frequency band including the following:
No Unit naming
1 VHF+UHF
3) Main Central Processor Unit (MCPU)
MCPU can inquire and control state of modules that are installed in BIU.
This unit can inquire and control state of four ODUs in total. Through communication, it
inquire and control ROU that is connected with lower parts.
In addition, the unit has RS-
232C port for serial communication so that it can inquire and control
state of devices through PC. On the front panel, it has communication LED indicator to c
communication state with ROU. It also has ALM LED indicator to show whether a device gets
faulty.
onfidential & Proprietary
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2) Main Com/Div Unit (MCDU)
MCDU combines TX signals that are delivered from MDBU per frequency band and delivers the
signals to four ODUs. This unit adds signals
of FSK modem to the TX signals before sending
them to ROU. It also combines RX signals from up to four ODUs and sends them to up to four
MDBUs. In this case, the unit extracts signals of FSK modems, which are sent in a combined
en delivers the signals to MCU.
The unit has a port to interface with VHF&UHF signals. It has ATT for input monitoring and input
Figure 4.4 – MDBU Outer Look
frequency band including the following:
Description
In/out RF
TX
Dual Band 1 Port
3) Main Central Processor Unit (MCPU)
MCPU can inquire and control state of modules that are installed in BIU.
This unit can inquire and control state of four ODUs in total. Through communication, it
inquire and control ROU that is connected with lower parts.
232C port for serial communication so that it can inquire and control
state of devices through PC. On the front panel, it has communication LED indicator to c
communication state with ROU. It also has ALM LED indicator to show whether a device gets
MCDU combines TX signals that are delivered from MDBU per frequency band and delivers the
of FSK modem to the TX signals before sending
them to ROU. It also combines RX signals from up to four ODUs and sends them to up to four
MDBUs. In this case, the unit extracts signals of FSK modems, which are sent in a combined
The unit has a port to interface with VHF&UHF signals. It has ATT for input monitoring and input
In/out RF
Port
RX
1 Port
This unit can inquire and control state of four ODUs in total. Through communication, it
also can
232C port for serial communication so that it can inquire and control
state of devices through PC. On the front panel, it has communication LED indicator to c
heck
communication state with ROU. It also has ALM LED indicator to show whether a device gets