Date
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GTO CP5 ethernet connection
Arun
Just to close the loop on this - the solution was to manually enter the DHCP address of the CP5 unit in the APCC box. I was expecting that "Find Mount" would automatically find it, but it does not. Once I entered the correct address, APCC had no issues finding and connecting to the mount via internet. It is really nice to have several methods of connection in the event one doesn't work (bad cable etc.)
FWIW, I have used the mount three times, and all three times, the temperatures have been at or close to 0 F, going down to -9F at the coldest. The standard temp encoders worked without complaint.
FWIW, I have used the mount three times, and all three times, the temperatures have been at or close to 0 F, going down to -9F at the coldest. The standard temp encoders worked without complaint.
Arun
Yes, the Optec focuser boxes have both ethernet and serial connections. The serial connection is needed if you want to update the firmware in the Optec, but ethernet works fine for normal operation. I have both cables, but prefer to use the ethernet cable during normal operation because replacing an ethernet cable is a lot less expensive than the serial cable, should it get damaged in use.
Kanwar
CP4/5 has the ability to be a DHCP server as well as a client, so in this regard a direct connect should work fine
On Tue, Jan 31, 2023 at 11:40 AM Kanwar <brar.kevin@...> wrote:
On Tue, Jan 31, 2023 at 12:03 PM, Arun wrote:
computer end is totallyArun,
I think Ethernet port on CP5 is used to connect ethernet wire to router and not to PC ethernet port. There will not be any internet signal this way to assign IP address to CP5 box.
--
Kanwar
https://www.astrobin.com/users/brarkevin/
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Brian
Brian Valente
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Kanwar
On Tue, Jan 31, 2023 at 12:03 PM, Arun wrote:
I think Ethernet port on CP5 is used to connect ethernet wire to router and not to PC ethernet port. There will not be any internet signal this way to assign IP address to CP5 box.
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Kanwar
https://www.astrobin.com/users/brarkevin/
computer end is totallyArun,
I think Ethernet port on CP5 is used to connect ethernet wire to router and not to PC ethernet port. There will not be any internet signal this way to assign IP address to CP5 box.
--
Kanwar
https://www.astrobin.com/users/brarkevin/
Linwood it depends on the Optec - i know the RJ style serial connector you speak of, but the focuser boxes also have a network connection
I agree more investigation needs to happen here, I've contacted Arun with a private message
On Tue, Jan 31, 2023 at 11:33 AM ap@... <ap@...> wrote:
On Tue, Jan 31, 2023 at 01:03 PM, Arun wrote:
I then unplugged the end connected to the focuser and connected that to the CP5. So the computer end is totally fine (since it worked with the Optec box).I'm not certain of this, but I think while the optec box expects the same wiring as ethernet, I do not think it is ethernet in use at all but a serial connection of some sort. In other words, while your statement is likely true, I am not sure the test is definitive. You probably have other ethernet cables lying around, even if wrong length, or needed for other stuff, might be worth trying a swap - if they behave the same, only lose two minutes for the check.
Linwood
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Linwood Ferguson
On Tue, Jan 31, 2023 at 01:03 PM, Arun wrote:
Linwood
I then unplugged the end connected to the focuser and connected that to the CP5. So the computer end is totally fine (since it worked with the Optec box).I'm not certain of this, but I think while the optec box expects the same wiring as ethernet, I do not think it is ethernet in use at all but a serial connection of some sort. In other words, while your statement is likely true, I am not sure the test is definitive. You probably have other ethernet cables lying around, even if wrong length, or needed for other stuff, might be worth trying a swap - if they behave the same, only lose two minutes for the check.
Linwood
Hi Arun
Did you use the Find Mount option in APCC to confirm the CP5 IP address?
On Tue, Jan 31, 2023 at 10:03 AM Arun <arun.k.hegde@...> wrote:
Hi Mike,
In this instance, with the cable, I had one end connected to the Optec focuser control box and the other end to the computer. It connected to the focuser perfectly fine.
I then unplugged the end connected to the focuser and connected that to the CP5. So the computer end is totally fine (since it worked with the Optec box). I will open up the unit and check the connection inside.
Arun
--
Brian
Brian Valente
astro portfolio https://www.brianvalentephotography.com/astrophotography/
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Arun
Hi Mike,
In this instance, with the cable, I had one end connected to the Optec focuser control box and the other end to the computer. It connected to the focuser perfectly fine.
I then unplugged the end connected to the focuser and connected that to the CP5. So the computer end is totally fine (since it worked with the Optec box). I will open up the unit and check the connection inside.
Arun
In this instance, with the cable, I had one end connected to the Optec focuser control box and the other end to the computer. It connected to the focuser perfectly fine.
I then unplugged the end connected to the focuser and connected that to the CP5. So the computer end is totally fine (since it worked with the Optec box). I will open up the unit and check the connection inside.
Arun
Mike Hanson
Arun,
I assume you've read the instructions:
https://astro-physics.info/tech_support/mounts/cp5-update/cp5-manual.pdf#page=12
The LEDs on the CP5 are dim so they don't cause light pollution is an observatory at night. If you are looking at them in broad daylight, they may look off. If you are certain the LEDs do not light up at either end of the cable, that means you are not getting an active "link". The next step is to figure out which end of the cable is the problem.
1) Plug your computer Ethernet into your router instead of the CP5 and see if you get an active link on the computer. If yes, the CP5 is likely the problem.
2) Plug the CP5 Ethernet into your router instead of your computer and see if you get an active link on the CP5. If yes, the computer is likely the problem.
If the CP5 is the problem, and you've confirmed the computer is NOT, remove the lid and make sure the small board is plugged in ALL THE WAY into the main board.
It should not matter if the cable is a cross-over cable or a straight-through cable. Once you have an active link, then we can proceed to test communications. You can use the Ethernet tab of UBS/Serial Utilities to assist with this.
Regards,
Mike Hanson
I assume you've read the instructions:
https://astro-physics.info/tech_support/mounts/cp5-update/cp5-manual.pdf#page=12
The LEDs on the CP5 are dim so they don't cause light pollution is an observatory at night. If you are looking at them in broad daylight, they may look off. If you are certain the LEDs do not light up at either end of the cable, that means you are not getting an active "link". The next step is to figure out which end of the cable is the problem.
1) Plug your computer Ethernet into your router instead of the CP5 and see if you get an active link on the computer. If yes, the CP5 is likely the problem.
2) Plug the CP5 Ethernet into your router instead of your computer and see if you get an active link on the CP5. If yes, the computer is likely the problem.
If the CP5 is the problem, and you've confirmed the computer is NOT, remove the lid and make sure the small board is plugged in ALL THE WAY into the main board.
It should not matter if the cable is a cross-over cable or a straight-through cable. Once you have an active link, then we can proceed to test communications. You can use the Ethernet tab of UBS/Serial Utilities to assist with this.
Regards,
Mike Hanson
Arun
I am trying to connect my Mach 2 to my imaging PC via wired internet.
I'm finding that then I connect an ethernet cable, the CP5 does not seem to recognize it - meaning it does not light up either at the CP5 end or the computer end. This is the same cable I'm using successfully for my Optec control hub, so it isn't a cable issue. Just wondering if I'm doing something wrong? I do have as primary the serial to USB connection, so this is as a backup method.
I'm finding that then I connect an ethernet cable, the CP5 does not seem to recognize it - meaning it does not light up either at the CP5 end or the computer end. This is the same cable I'm using successfully for my Optec control hub, so it isn't a cable issue. Just wondering if I'm doing something wrong? I do have as primary the serial to USB connection, so this is as a backup method.