Product specifications

Ku-Band Satellite Transceiver Revision 9

Installation MN/KST2000AB.IOM

2–11

Table 2-6. HPA Connector (J8) Pin Assignments (TWTA Connection)

Pin Signal Description

A HV_EN High voltage enable, open collector output, active

low

B HTR_STB

Heater standby, open collector output, active low

C FLT_RST Fault reset, open collector output, active low

D HPA_IN1 Input from TWTA, heater timer complete, active low

E HPA_IN2 Input from TWTA, TWT temperature fault, active low

F HPA_IN3 Input from TWTA, high voltage on, active low

G HPA_IN4 Input from TWTA, summary fault, active low

H GND Status/control return

J ANA_IN Analog input from TWTA (0 to +10VDC)

K GND Analog signal return

2.4.1.10 REF IN Connector (J9)

The REF IN connector (J9) allows the user to operate the system with an external

reference instead of the built-in system reference. An external signal of 5 or 10 MHz,

at +6 dBm minimum, may be applied to the 50Ω, Type N, female connector.