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Description | Qty | Source | Part Number | Notes |
|---|---|---|---|---|
Barometer/Humidity Sensor | 1 | Vaisala | PTU300 | Note Vaisala now offers an ethernet interface board for the PTU300, but it has to be installed at the factory. |
Serial Interface Cable | 1 | Vaisala | 19446ZZ | Purchased separately and installed by KPF team. |
RS-232 to Ethernet Adapter | 1 | Lantronix | UDS2100 | This is the version with two serial ports (but and standard 9-pin RS-232 connectors) |
Smaller Footprint Power Supply for Lantronix | 1 | Tri-Mag, LLC | Tri-Mag PN: L6R12H-120 DigiKey PN: 364-1264-ND | The stock Lantronix power supplies do not work well with the PDUs (as they block two extra outlets). KPF uses these replacement supplies since they only take up one PDU outlet. |
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Relevant Functional Block Diagram
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Cable Details
Cable | Qty | Details | Notes |
|---|---|---|---|
Ethernet | 1 | Cat6 Copper Ethernet Cable M-M, 6 feet long | Entirely within Vac Cart. |
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Pictures of Devices
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Relevant Datasheets & Manuals
Description | File | Source | ||||||
|---|---|---|---|---|---|---|---|---|
| 1 | Vaisala PTU300 User’s Guide (2019 version; device purchased in 2014) |
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| 2 | Calibration Certificates |
| These shipped with our actual KPF device | |||||
| 3 | Lantronix UDS 2100 Quick Start Guide |
| https://www.lantronix.com/products/uds2100/#tab-docs-downloads | |||||
| 4 | Lantronix UDS 2100 User Guide |
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| 5 | Smaller Form-Factor Footprint Power Supply Datasheet |
| https://www.tri-mag.com/wp-content/uploads/2021/05/L6R12H_Series_2021-01.pdf (Linked off the DigiKey product page) |
Dispatcher Implementation
Keyword
Value
Type
RETVAL
Value returned by Vaisala.
String. The format is set in the configuration file. Only readable.
TIME
Time stamp of when the last RETVAL was received.
Unix timestamp (binary) or time stamp (ascii). Only readable.
PRES
Pressure value in units of hPa.
Double value from RETVAL, read only.
RELH
Relative humidity in %.
Double value from RETVAL, read only.
TEMP
Temperature in deg C.
Double value from RETVAL, read only.
DISP#STA
Dispatcher status.
Enum and read only. If value is 4 or “Not Connected” the connection to the Vaisala or the Lantonix is not available. If value is 3 or “Connecting” the dispatcher is attempting to connect to the Vaisala through the Lantronix.
DISP#CONN
IP address and port separated by a colon.
Read only string, set by configuration file
DISP#DEV
Device name
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Dispatcher Configuration File
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