Moxa Technologies VPort 2140 user manual Power On Self Test Post, Frequently Asked Questions

Power On Self Test (POST)

After the power has been turned on, Video Server will perform a self-diagnostic to detect any possible hardware defects. The CONNECT (LED 2) and SERIAL (LED 3) LEDs will blink during the POST, and will keep blinking until the POST completes successfully, or a fatal error is detected. If either status LED indicator is dim to start off with, the LED may be broken.

When certain fatal errors occur, LED2 and LED3 blink in a particular way to indicate the type of failure, as described in the following table.

LED pattern after POST	Failed function	Troubleshooting
LED2 and LED3 blink at same	Video input	The video decoder is broken.
time		Ask your reseller for technical
		service.
LED2 ON and LED3 OFF	Ethernet network	The PCI interface cannot work.
		Ask your reseller for technical
		service.
LED2 OFF and LED3 ON	Ethernet network	The Ethernet controller is
		broken. Ask your reseller for
		technical service.
LED2 ON and LED3 ON	Ethernet interface	Ethernet interface failure
		includes not only components on
		board but also Ethernet cable and
		the devices on the opposite end.
LED2 blink and LED3 ON	System date and time	The real-time clock is broken.
		Ask your reseller for technical
		service.
LED2 ON and LED3 blink	Camera control via COM or	The UART controller is broken.
	modem interface	Ask your reseller for technical
		service.

To reduce system failure caused by operation error, always read the related sections in this user’s manual to prevent unexpected errors caused by “wild-guess configuration.”

Frequently Asked Questions

Q:Why can’t I see the Video Server in the installer after rebooting?

A:The installer is only used to install the IP address of the Video Server. If the IP address is fixed by checking the option in the installer, the Video Server will no longer appear in the installer.

Q:Why can’t I connect the Video Server after rebooting?

A:If the IP address is not fixed, Video Server will always wait for the installing command to provide a valid IP address. This means that the previous IP address will not be used if the option in the installer is not checked; or the option in the network configuration is not cleared. The benefit of waiting for a valid IP address by default is that administrators can find the Video Server in the installer to prevent IP conflict. As long as the IP address is confirmed, we suggest fixing the IP address to make Video Server automatically start up whenever regaining power.

Q:What if I forget my password?

A:Every access to Video Server needs authentication. If you are not a permitted user, you may view the images or control the camera as long as the demo account is opened. The demo account user may use username as “demo” without any password to access limited features. If you are one of the managed users, you must ask the administrators for the password in the first time. If you are the administrator, there is no way to recover the root password. The only way to regain access to Video Server is to restore the factory settings and reinstall it.

7-2 VPort 2140 User’s Manual