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iKarus StellarMate Plus - Connecting Focusers; Serial to USB

iKarus StellarMate Plus
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The StellarMate Plus Manual
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hotspot. This is to ensure that all the devices are on the same network talking
to each other. You cannot have half the devices on a different network. Once
the devices join the mount HotSpot network, they should be assigned their
own IP addresses. Use the mount hotspot IP address in INDI Control Panel in
order to establish communication with the mount. The port number should be
listed in your mount manual.
· Mount Infrastructure: Some Wireless mount can be configured in Infrastructure
Mode. This is the mode where the mount does not start its own hotspot but
insteads joins an existing WiFi network. Make sure all the relevant devices
(StellarMate, Laptop, Tablet..etc) are all joined to the same WiFi network so
that they can talk to each other. Find out the mount IP address and enter it in
INDI Control Panel in order to establish communication with the mount. The
port number should be listed in your mount manual.
10. Connecting Focusers
StellarMate supports a broad range of focusers from professional focusers to DYI
types. Most focusers fall in the following two categories:
· Absolute/Relative Focusers: Absolute focusers are usually stepper motors
that can go to a specific step that is remembered across power cycles. This is
the recommened type to use since Auto Focus operations are reliable with this
type of focuser.
· DC Focusers: DC Focusers are open loop simple motors in which the program
can control the speed and direction of the focuser, but not its exact position.
These exist in cheap focusers and DSLR cameras. It is generally recommended
to avoid such focusers.
To check if your focuser is supported, please visit the INDI Focuser Portal. Check
the documentation for your focuser before you operate it for the first time.
10.1 Serial to USB
Most equipment is connected via USB. StellarMate is equipment with 4 USB
ports. However, it is highly recommended to use an external powered USB Hub
as it can reliably support power to your equipment.
WARNING
Most problems in operating your equipment with StellarMate are related
first and foremost to power problems. Therefore, please invest in reliable
power supply for all your equipment!
For many Focusers that use RS232 connectors, you need to purchase a Serial-To-
USB adapter suitable for your Focuser model from the manufacturer. When you
plug in your Serial-To-USB devices, they are assigned a specific port under

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