Black Box ServSwitch SRX, ACU5051A manual Further information, Getting assistance, Troubleshooting

Further information

Getting assistance

If you are still experiencing problems after checking the list of solutions in the Troubleshooting section then we provide a number of other solutions:

• Email	in the US:	techsupport@blackbox.com
	in the UK:	techhelp@blackbox.co.uk
• Phone	in the US:	724-746-5500
	in the UK:	+44 (0)118 965 6000

®

Troubleshooting

Status indicators		contents
The green and yellow indicators built into the link connectors on each module
provide useful feedback regarding the connection and power status:
During startup (of the local module)
•	One very short yellow flash: no valid DDC information available from
	a locally connected video monitor, no changes made to stored DDC
	information.	welcome
•	Single yellow flash: DDC information being read from a locally connected
	video monitor, but no changes made to stored DDC information.
•	Rapid yellow flash for 2 to 3 seconds, followed by single flash: New DDC
	information being read and stored from a locally connected video monitor.
•	Two yellow flashes - Checksum error prior to copying - no information will	installation
	be programmed.
•	Three yellow flashes - Too much data to fit into the module - the module
	can hold a maximum of two pages of DDC information.
•	Rapid yellow flashing followed by four flashes - data was lost during copying
	- the default data was substituted. Repeat the power on process.
•	Rapid yellow flashing followed by five flashes - Checksum error during
	copying - the default data was substituted. Repeat the power on process.	operation
During operation (either module)
•	Continual yellow: Valid CATx link to other module sensed.
•	Continual green: Correct power input sensed.
•	Green flashes: Power input too low for normal operation. In the case of the
	local module, this may be because the USB connection is unable to provide
	sufficient power. In these cases, an external power supply should be used	further information
	with the local module.

Important

Do not attach a USB hub to the SRX remote, nor plug the SRX local module into another USB hub. To do so will reduce the maximum cable length over which the system will extend USB; also, some USB hubs may not provide enough power to operate the local unit.

14