AWSA-K50-CHE
Page
20
6. INTERFACES
The SSPA is provided with interfaces that can be used to connect it with several optional
external devices. The interfaces for this model (AWSA-K50-CHE) are listed bellow:
1. Discrete Interface (J3): This form-C relay remote interface offers essential SSPA monitoring
(FAULT and thermal shutdown) via individual signals per SSPA status.
2. RF Output Monitor Interface (J4): This interface provides a measure of the output power of
the power amplifier.
Interface connectors for these devices are located at the connector plate of the SSPA and are
described in the following sections.
6.1 D
ISCRETE
I
NTERFACE
The Discrete Interface is located at connector (J3) of the SSPA. (J3) is MS3112E16-26P (male
26 pins) connector with pin assignment shown in
TABLE 6
at page 20. FAULT status signals
are provided as Form-C relay contacts.
TABLE 6
: DISCRETE INTERFACE (J3) – PINS ASSIGNMENTS
Pin #
Signal Name
Remarks
H FAULT
–
COM
Common contact of the
FAULT
form – C relay contacts.
J FAULT
–
NC
Normal close contact of the
FAULT
form – C relay contacts
Defective unit or unit MUTED: pins H, J closed
Unit ON: pins H, J open
K FAULT
–
NO
Normal open contact of the
FAULT
form – C relay contacts
Defective unit or unit MUTED: pins H, K open
Unit ON: pins H, K closed
