Description

The white light source is a subrack unit containing two Ocean Optics HL-2000-HP-232 halogen light sources and a Moxa NPort 5450 serial device server. Serial ports 1&2 are used to control the light sources, while the remaining ports 3&4 are available on the rear side of the subrack.

This device is common to both sides of the telescope: in the future the 2 light sources will be used for DX and SX reflection on-axis sources. At the moment both sources are used on the DX side, one in reflection and one in transmission through the hologram

A spare unit with bulb exist and is stored Argos3U in ArgosCabinet3.

Known history

When Where Who What
20150222 LBT WG Swapped the so-called DX and SX sources: now SX source is in reflection through CalUnitSystemDx, while DX source is in transmission through the hologram.
20150424 LBT WG Swapped back: now DX source is in reflection through CalUnitSystemDx, while SX source is in transmission through the hologram.
20201027 LBT GR SX light source (#1) bulb died. Unit was replaced with spare. Bulb was replaced in the unit taken out and left as spare.

Know issues

When What
20150222 The DX unit is not stable. It continuously reset to the default OFF state. This might be related to low temperature. After redirecting the cooling flow it worked again.

Current known config

SN MAC IP Location
WLS 00:90:E8:29:10:41 192.168.26.93 LBT

Previous config

copy and paste from above when config is changed

Documentation

Use of the unit is described in this topic

General software instructions can be found in MPIA wiki page: https://svn.mpia.de/trac/gulli/argos/wiki/whiteLight

A user manual can be found in the LBT CAN archive: http://abell.as.arizona.edu/~hill/xlbt/lbtg/653g921a.pdf

The subrack schematics are also in the LBT CAN: http://abell.as.arizona.edu/~hill/xlbt/lbtg/653g920a.pdf

The Ocean Optics HL-2000-HP-232 light source manual is here: http://abell.as.arizona.edu/~hill/xlbt/lbtg/653g922a.pdf

Maintenance

decribe how to repair or replace a broken part

List of components devices

DeviceInfoForm edit

Name White light source
SerialNumber WLS
Location CRingRackDx
MACAddress 00:90:E8:29:10:41
DeviceType
Service Tag
Topic attachments
I Attachment Action Size Date Who Comment
IMG_0328.JPGJPG IMG_0328.JPG manage 2 MB 27 Oct 2020 - 22:57 GustavoRahmer Access to light source modules and MOXA serial server
IMG_0329.JPGJPG IMG_0329.JPG manage 2 MB 27 Oct 2020 - 23:02 GustavoRahmer Access to light source modules and MOXA serial server (from front of DX CRE rack)
IMG_0331.JPGJPG IMG_0331.JPG manage 2 MB 27 Oct 2020 - 23:04 GustavoRahmer Access to front of light source modules (from back of DX CRE rack)
moxa-nport-ia5000-series-manual-v4.0c.pdfpdf moxa-nport-ia5000-series-manual-v4.0c.pdf manage 9 MB 08 Oct 2021 - 04:12 GustavoRahmer NPort 5000 Series User’s Manual
Topic revision: r7 - 08 Oct 2021, GustavoRahmer
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