Paradise 205486 REV F manual Redundant System Operation, Redundant System Concepts

Section 7: Redundant System Operation

7.0 Redundant System Concepts

The Compact Outdoor Amplifier is capable of operating in a variety of redundant system configurations. These include 1:1 and 1:2 as well as 1:1 with L-Band Block Up Converters. The Compact Outdoor Amplifier has a built-in 1:1 redundancy controller, allowing it to be used in 1:1 redundant systems without a separate external controller. When used in a 1:2 redundant system a separate controller, RCP2-1200, is required. The three most common forms of 1:1 redundant system are shown in Figures 7-1 through 7-3.

Figure 7-1 shows a standard 1:1 system in which the RF input is transmitted through a transfer switch along with the output. Using this configuration the standby amplifier carries no traffic and simply is terminated by a 50 ohm resistive load at its input and by a waveguide termination at its output.

RF Input

RF Output

C Band

or

Ku Band

Figure 7-1: Standard 1:1 Redundant System with input (coaxial) switch and

output (waveguide) switch

With the system configured as in Figure 7-2, the RF input is passed through a microwave splitter. This keeps ‘live’ traffic on the standby amplifier and is useful for observing the traffic via the RF sample port on the standby amplifier.

RF Input

CBand or

Ku Band

RF Output

Figure 7-2: 1:1 Redundant System with input splitter substituted for input switch

Operations Manual, HPA2, Compact Outdoor SSPA 205486 REV F 45