DT-4500 Series C- and Ku-Band Down Converters
MN/DT4500.IOM
Front and Rear Panel Connectors
Revision 2
4–14
Item 8 – ‘P1 | RELAY’ Utility Connector
Use this D-Sub 9-pin female (DB-9F) connector to access the Form C Alarms
(relay closures). The mating connector is a DB-9M connector.
Table 4-5. ‘P1 | RELAY’ Pinout
Pin #
Description
Notes
1
Summary Fault NC
1)
Pin 1 to Pin 6: FAULT
2)
Pin 2 to Pin 6 OK (NO FAULT)
3)
Pin 7 to Pin 5: Forced Faults (typically used
with external group delay equalizers)
2
Summary Fault NO
3
4
5
Ground
6
Summary Fault COM
7
EXT_FLT_IN#
8
9
Item 9 – Removable Module
See
Sect.4.2.4
for information about these removable “personality”
modules.
Item 11 – Front Panel RF Sample Test Point Connector
Figure 4-14. Front Panel Sample Test Point Connections
As shown in
and
Item 11
): This female Type ‘SMA’
connector (-20 dBc nominal) provides the user RF test point interface.
An optional RF LO monitor (0 dBm nominal) is available in replace of
the ‘RF’ Sample Test Point.
Item 12 – Front Panel ‘IF’ Sample Test Point Connector
As shown in
and
Item 12
): This female BNC connector
(-20 dBc nominal) provides the user IF test point interface.
