Follow these steps to get started using a CONV-TTL-BLO board:
Plug in the CONV-TTL-RTM board into the rear part of the VME crate.
Remove the CONV-TTL-BLO board from its box and ESD-protective bag.
Based on the type of pulses desired on the front panel, set the TTL
selection switch (SW2.4) to the appropriate position:
TTL pulses - set the switch to the ON position (default)
TTL-BAR pulses - set the switch to the OFF position
If the board is v3 and earlier, this following step is not
applicable and may be skipped.
Based on the pulse width desired at the output, and also based on
the desired maximum repetition frequencies, set the pulse-width
switch (SW1.2, see Section 4.3 of the User
manual ) to the appropriate
Short 250ns - set the switch to the ON position
Long 1.2us - set the switch to the OFF position (default)
Set the glitch filter enable switch (SW1.1) to the appropriate
Glitch filter disabled, jitter-free signal at output - set the
switch to the OFF position (default)
Glitch filter enabled, introduces output jitter - set the
switch to the ON position
Insert the CONV-TTL-BLO board into the VME crate and power on the
Check that the PW status LED is lit green. If there is no
RTM in the rear side of the crate, the ERR LED will light
red. The TTL status LED should also be lit green if you
set the TTL switch to the ON position in step 3.
Input a TTL (or TTL-BAR) signal into a front panel input channel.
When a pulse arrives on the input, it is replicated on the output of
the same channel. If an RTM board is present in the rear part of the
VME crate, the pulse will also be replicated on the three blocking
outputs of the same channel on the rear-panel. The channel pulse
LEDs on both the front and rear panels flash briefly when a pulse
Theodor-Adrian Stana, Erik van der Bij, Denia Bouhired-Ferrag - 31 March