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INSTALLATION AND POWER-UP
2-4
1
RF OUT
50 Ω SMA-type socket. Protected against the application of reverse power of up to
50 W.
2
SYSTEM FAIL
This red LED lights to indicate that the signal generator has failed, or is in the process
of executing its self-test. It indicates the condition of the VXI-bus SYSFAIL line.
The LED will continue to be lit whilst the self-test is in progress even when SYSFAIL
is inhibited by the commander.
3
POWER OK
This green LED lights to indicate that power is being supplied to the signal generator.
All lines are continuously checked for sufficient voltage.
4
RPP TRIP
This red LED lights to indicate that the Reverse Power Protection (RPP) circuit has
tripped. The power source must be removed from the RF OUT socket.
5
FREQ STD I/O
BNC socket for the input of external standard frequencies of either 1 MHz or
10 MHz. Also supplies a 10 MHz internal standard output.
6
EXT MOD INPUT
BNC socket which allows an external modulating signal to be applied.
7
TRIGGER INPUT
BNC socket which has three uses; in priority order these are:
FSK logic input
Memory sequencing
Sweep trigger.
8
PULSE INPUT
10 kΩ BNC socket which accepts a pulsed input. Also used as one logic input (the
other is the TRIGGER INPUT) for 4FSK modulation.
9
LF OUTPUT
600 Ω BNC socket which monitors the modulation oscillator.
Switching on
Insert the signal generator module in the required slot in the mainframe and screw in the retaining
screws. Switch the mainframe on. All three LEDs should initially light while the generator carries
out its self checks. When the unit passes its self checks, and if there are no errors detected on the
backplane, the red SYSTEM FAIL and RPP LEDs will go out within 5 seconds and the green
POWER OK LED will remain on.
Disk installation/loading instructions
LabWindows/CVI Instrument Driver and VXI Plug and Play Soft Panel disks are supplied with this
instrument. Before inserting a disk in your disk drive read the installation or loading instructions
given on the label of the appropriate disk. Refer to 'read me' files for further information.