Chapter 1: Introduction
10 System description
TT-5035A Satellite Data Unit (SDU) and TT-5014A High Power
Amplifier (HPA)
The SDU is the controlling unit of the satcom system. A Configuration
Module (CM) and all the interfaces, except for the maintenance port, are
located on the rear of this unit.
The High Power Amplifier (HPA) connects to the satcom antenna and
amplifies the transmission signals of all channels simultaneously.