User's Manual

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Kisan Telecom Confidential Proprietary
4.1.7. Function of Modules
No Module Description
1
[Divider]
Divides signals into RF and modem signals and
sends to RFBS/RFCHS and FSK modem.
2
[RFBS0]
Controls the gain of TX0 path, filters FWD band,
controls the crest factor of TX0 signal, and
performs the ALC function. Output of the module
is sent to HPA.
3
[RFBS1]
Controls the gain of TX1 path, filters FWD band,
controls the crest factor of TX1 signal, and
performs the ALC function. Output of the module
is sent to HPA.
4
[SOU]
Performs E/O (or O/E) conversion for FWD and
RVS signals.
Wavelength: LD 1330[nm], PD 1570[nm]
5
[FSK Modem]
Data modem for RU and MHU communication
RU → MHU frequency: 340MHz
MHU → RU frequency: 360MHz
6
[RRCOM]
Combines RX0, RX1 and Modem signals, and
provides the combined signal to optical module
in order to perform E/O conversion.
7
[RRBS0]
Amplifies RX0 signal by low noise high gain,
filters for the desirable band and controls the
RVS path gain of RU.
8
[RRBS1]
Amplifies RX1 signal by low noise high gain,
filters for the desirable band and controls the
RVS path gain of RU.