Comtech-ef-data SDM-2020 Instrukcja Użytkownika Pobierz pdf (Strona 43)

SDM-2020 Satellite Demodulator Revision 4

Installation MN/SDM2020D.IOM

3–3

3.1.1 Connector Pinout Definitions

Pinout “TYPE” is defined to described signal direction for each pin. The signal direction

is relative to the connector.

Definitions for Pinout Types

I (Input) A signal goes into the connector.

O (Output) A signal exits the connector.

I/O (Input/Output) A signal both enters and exits the connector on the specified pin.

GND (Ground) The pin is defined as being connected to a power supply ground or return.

N/A (Not Assigned) The pin is not assigned within the system but may be routed to other connectors.

Usually defines spare pins.

N/C (No Connect) The pin is not connected and is not used within the system.

N/U (Not Used) The pin is not used but is routed and has other uses within the system.

FC (Form C) The pin is connected to a “Form C” relay.

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Comtech-ef-data SDM-2020 Instrukcja Użytkownika Strona 43