4 external connections, 1 system interface wiring – Comtech EF Data HPCST-5000 User Manual
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High-Power TWTA Satellite Terminals
Redundant System Installation
Rev. 1
3–15
3.3.4 External Connections
Refer to Chapter 2, Section 2.3.4, for information on connections between the TWTA
and other equipment.
3.3.4.1 System Interface Wiring
Note: In all cable drawings (Figures 3-1 through 3-4), a set of double UPPERCASE
letters (e.g., “AA”) corresponds to a small letter (e.g., “a”) on the cable connector.
Refer to Figure 3-1 for the system interface wiring between the TWTA, RFT, and RSU
for a redundant system.
Refer to Figure 3-2 for a schematic of the customer interface cable. This cable is not
included with TWTA systems, and must be ordered separately from EFData. (If the
customer has an M&C system, this illustration is typical.)
Refer to Figure 3-3 for a schematic of the uplink-only cable.