Author Topic: SX200ICP enable/disable maintenance port  (Read 3151 times)

Offline gungadin

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SX200ICP enable/disable maintenance port
« on: January 05, 2015, 12:56:46 PM »
Greetings, is there a way to enable/disable the maintenance COM port?  I am able to connect via the web interface
but not the maintenance port.  I am well familiar with serial connections and have double checked the COM settings.
I think the installer may have disabled it.  I am also able to use the SMDR port just fine.


Offline ralph

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Re: SX200ICP enable/disable maintenance port
« Reply #1 on: January 05, 2015, 03:57:55 PM »
Try this:
Connect to the port and enter CTL-Q.
It's possible that the port received X-off and is waiting for an X-on

Ralph

Offline gungadin

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Re: SX200ICP enable/disable maintenance port
« Reply #2 on: January 05, 2015, 04:04:28 PM »
Thanks for your reply.  I don't have access to the device at the minute but I cycled the power and the status was unchanged.  I assume this would clear the X-off?  Any idea if this port can be enabled/disabled outright?

Offline ralph

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Re: SX200ICP enable/disable maintenance port
« Reply #3 on: January 05, 2015, 04:20:22 PM »
Yes.  A power cycle would have cleared an X-Off.
Other than that I'm not sure unless you have a bad UART.

Ralph

Offline acejavelin

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Re: SX200ICP enable/disable maintenance port
« Reply #4 on: January 05, 2015, 10:56:22 PM »
Remember the ICP can only do 9600 bps or lower, unlike previous models that could do 19.2, 38.4, or higher speeds. I have never seen a maintenance port go bad on the ICP, and I have installed LOTS of them, not to say that it can't go bad but it would very unusual.

I know almost every Dell laptop we had had the serial port go bad though, and had many USB serial interface cables go bad as well, I switched to using nothing but Edgeport serial devices and they have never failed in over 5 years of constant use.

Offline johnp

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Re: SX200ICP enable/disable maintenance port
« Reply #5 on: January 06, 2015, 04:56:09 PM »
Also you should have no flow control

Offline fifty5footer

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Re: SX200ICP enable/disable maintenance port
« Reply #6 on: January 07, 2015, 03:55:21 PM »
When you reset the controller, do you see the progress/result codes, while the system boots?

Offline johnp

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Re: SX200ICP enable/disable maintenance port
« Reply #7 on: January 07, 2015, 04:25:11 PM »
Good call Fred

Offline gungadin

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Re: SX200ICP enable/disable maintenance port
« Reply #8 on: January 08, 2015, 01:02:10 PM »
Thanks everyone!  When I reset the controller I don't see any output in Hyperterminal.  When I have a chance I will try different computer's serial connections, double check the port settings (no flow control, 9600, etc) and CTR-Q.


 

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