Mitel Forums - The Unofficial Source
Mitel Forums => Mitel SX200, SX2000, and older SX platforms => Topic started by: gungadin on January 05, 2015, 12:56:46 PM
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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.
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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
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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?
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Yes. A power cycle would have cleared an X-Off.
Other than that I'm not sure unless you have a bad UART.
Ralph
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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.
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Also you should have no flow control
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When you reset the controller, do you see the progress/result codes, while the system boots?
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Good call Fred
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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.