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Ku-Band Satellite Transceiver Revision 9
Installation MN/KST2000AB.IOM
2–10
2.4.1.9 HPA Connector (J8)
The HPA connector (J8) is a 10 pin circular, female (ITT #KPT02E-12-105) connector
used for HPA M&C and power functions. Refer to Table 2-5 for pin assignments for 2, 4,
8, 16, 25, 32, and 40 watt SSPAs. Pin assignments vary based on the amplifier type
selected.
Table 2-4. HPA Connector (J8) Pin Assignments (CEFD SSPA)
Pin Signal Description
A IPA Communications line A
B IPB Communications line B
C +10V +10V Power Supply Output (N/A on 16, 25, 32 & 40W)
D +10V +10V Power Supply Output (N/A on 16, 25, 32 & 40W)
E +10V +10V Power Supply Output (N/A on 16, 25, 32 & 40W)
F +10V +10V Power Supply Output (N/A on 16, 25, 32 & 40W)
G +10V_RTN +10V Power Supply Output (N/A on 16, 25, 32 & 40W)
H +10V_RTN +10V Power Supply Output (N/A on 16, 25, 32 & 40W)
J +10V_RTN +10V Power Supply Output (N/A on 16, 25, 32 & 40W)
K +10V_RTN +10V Power Supply Output (N/A on 16, 25, 32 & 40W)
Notes:
1. For a CEFD SSPA, J8 (external circular connector) is routed internally to J10 on
the M&C PC assembly AS/8876 (refer to Table 2-4).
2. Non-KST specific SSPA application, J8 (external circular connector) is routed
internally to J11 on the M&C PC assembly AS/8876, (refer to Table 2-5).
3. For a TWTA application, J8 (external circular connector) is routed internally to
J12 on the M&C PC assembly AS/8876, (refer to Table 2-6).
Table 2-5. HPA Connector (J8) Pin Assignments (Non-KST Specific SSPA)
SSPA Pin Converter Pin Signal Description
H A RF_ENA RF enable, open collector output, active low
– B N/C Not connected
– C N/C Not connected
– D N/C Not connected
C E THERM Thermistor input connection
– F N/C Not connected
D G HPA_IN1 SSPA summary fault input, active low
G/R H CMD_RTN Command return (tie to SSPA GND)
E J ANA_IN Analog input from SSPA (0 to +10VDC) Output
Power
a K GND Signal ground reference
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