You can turn off or turn on a laser when necessary. For example, if an optical port does not carry services, you can turn off the laser to prevent hazardous laser radiation exposure from causing permanent eye damage. You can turn on the laser when the optical port needs to carry services.
If you turn off a laser, services may be interrupted or you may fail to log in to certain NEs.
If you set Laser Switch to Close, you need to click OK in the Confirm dialog box. In the Prompt dialog box, click OK.