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Figure 4-2: RM SSPA 1:1 Redundant Systems
Both SSPAs constantly monitor the waveguide switch position. The proper position for
the online SSPA is determined by the “Unit Status” setting. If the selected SSPA is
configured as “HPA1,” it will drive the RF switch to Position 1 to set itself to the on-line
state. Selecting unit status to “HPA2” will configure that SSPA to drive the switch to
Position 2 for the on-line state. In “Auto” mode, the online SSPA will make two
attempts to force the waveguide switch to take proper position before accepting its
new state.
4.1 Hardware
Two Teledyne Paradise Datacom Rack Mount SSPA units are used for a 1:1
redundant configuration. The units are connected to each other through a link cable,
which allows the exchange of online/standby statuses between SSPAs.
Both SSPA units are connected to the waveguide switch through a Y-cable. This
allows either amplifier to drive the switch to its proper position. Each unit must be
configured with a unique identity. If one SSPA is configured as “HPA1”, the other
should be configured as “HPA2”. Both SSPAs must be set to 1:1 Redundancy mode.
Figure 4-2
shows a 300W C-Band 1:1 Redundant System with an RCP2-1100
Redundant Controller.
Содержание HPAC-2005
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