SDI CS-1, Operating Manual

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Copyright © SpectraDynamics, Inc. 2010 5
ON
The LED is on, when power is applied to unit and the unit is operating
properly.
DATA The LED is on when data is being sent or received via the RS-232 port.
STATUS This LED is a hardware representation of the system status flag. The
LED is turned on when an error has occurred. The LED will stay ON even
if the error condition has been automatically corrected for or is no longer
present. The user must go to the PLL Status Menu to clear the status flag
with the soft key CLR.
RS-232
DB-9 connector for serial communications. This is a dumb terminal
RS-232 port. A null modem adapter is not required.
DISPLAY The LCD display and touch screen is used to control the CS-1 in local
control mode.
REFERENCE INPUTS
Signal The Signal LED will turn on when the external reference is present at the
Ext Ref port.
PLL The PLL LED will turn on when the CS-1 internal PLLs are operating
properly.
Ext Ref SMA input for the 5 MHz external reference signal (+/-0.1 Hz, level +7 to
+15 dBm. This input port has an impedance of 50 ohms when an external
reference is provided and an impedance of 10 kOhm when routed to the
tuning port of the internal 5 MHz crystal. (See Alternative Reference
Configurations p.11)
Mod In SMA input for the external modulation signal.
Trig In SMA input for the state machine trigger signal.
RF On
The RF On LED will turn on when the 9.192 GHz output signal is
activated.
SDI
Synthesizer Module: Front Panel