Valon Technology 5009 Operations Manual – Version 1.36
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5
User Port
The user port is a 8-pin male Hirose connector located on the back edge of the synthesizer module. This
port can be used as the List Mode hardware control input or an auxiliary 3V TTL serial port.
The port can be user configured to provide the access for the sweep trigger, sweep active, and sweep
step signals.
5.1.1
User Port Pin Assignments
User Port
Figure 9 USER PORT PIN ASSIGNMENT
User Port Pin Assignment Table
USER PORT
Pin
Name
Description
1
L0
List bit 0
2
L1
List bit 1
3
L2
List bit 2
4
L3
List bit 3
5
L4/RXD
List bit 4 or Serial RXD,
6
TXD
Serial TXD
7
Lock Detector/Sweep
Sync Output/Sweep
trigger
Lock Detector output, high when both channels are
locked. Input for external trigger in external trigger
sweep mode. Output for sweep enabled in Auto Sweep or
Manual Sweep mode
8
GND
Common ground (same as chassis)
The USER PORT mating connector is a Hirose DF11-8DS-2C with pre-terminated cables H3BBT-10112-
W4. All available from Digi-Key or you can ordered the 5009 list mode selector switch (LMS-1).
5.1.2
Lock Detector/Sweep Sync/ Sweep Trigger
If both sources are in CW mode, pin-7 is the lock detector status output. If one of the source is in
Sweep mode pin-7 can be used as a Sweep Sync output for Auto triggered sweep or a Sweep
Trigger for externally triggered sweeps.
The Sweep Sync signal goes high at the beginning of the Start frequency and stays high for the
first step. For all other steps, the Sweep Signal goes low and stays low until the Start frequency
step is reached.
1
2
8
7
