User's Manual

C
onfidential & Proprietary
1 DOU
Donor Optic Unit
Convert TX RF signals into optical signals;
Convert RX
Provide up to four optical ports per DOU
2 EWDM
Expansion Wavelength Division Multiplexer
Convert TX optical signals into RF signals;
Convert RX RF signals into optical signals;
Compensate for optical cable loss
3 ECPU
Expansion Central Processor Unit
Control and monitoring system status
Control and monitoring with RS232
Relay state values of ROU to BIU
4 EPSU
Expansion Power Supply Unit
Input power: DC
5 ERFM
Expansion
Regenerate TX signals and transmit FSK modem
signals;
Regenerate RX signals and receive FSK modem signals
6 Shelf
19” rack, 2U
4.3.4 Function by unit
1)
Donor Optic Unit (DOU)
DOU is the same as the module used for ODU.
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Donor Optic Unit
Convert TX RF signals into optical signals;
Convert RX
optical signals into RF signals;
Provide up to four optical ports per DOU
Expansion Wavelength Division Multiplexer
Convert TX optical signals into RF signals;
Convert RX RF signals into optical signals;
Compensate for optical cable loss
with ODU
Expansion Central Processor Unit
Control and monitoring system status
Control and monitoring with RS232
Relay state values of ROU to BIU
Expansion Power Supply Unit
Input power: DC
-48V, Output power: 9V, 6V
Expansion
Radio Frequency Module
Regenerate TX signals and transmit FSK modem
signals;
Regenerate RX signals and receive FSK modem signals
19” rack, 2U
Donor Optic Unit (DOU)
DOU is the same as the module used for ODU.
Figure 4.18 – MDBU Outer Look
Max 2ea
Regenerate TX signals and transmit FSK modem
Regenerate RX signals and receive FSK modem signals