Q-Logic MKII-BASE16 user manual Laser Safety Information Optical GBICs, Usage Restrictions

Laser Safety Information

Optical GBICs

Each optical GBIC is a single communications port. Each communications port consists of a transmitter and receiver optical subassembly. The transmitter subassembly contains internally a semiconductor laser diode of either: 1) the gallium aluminum arsenide (GaAlAs) type emitting in the wavelength range of 770 to 860 nanometers (commonly referred to as Shortwave (SW)) or 2) indium gallium arsenide phosphide (InGaAsP) type emitting in the wavelength range of 1270 to 1355 nanometers (commonly referred to as Longwave (LW)). Both SW and LW discrete laser diodes are classified as Class 3B laser products rated at 5.0 milliwatts peak power. Once they are incorporated into the optical GBIC, the product’s automatic power control and power monitoring system maintains the average power that exits from an open fiber at a value below the Class 1 limit for either SW or LW laser link products. In addition, for those GBIC products that contain Open Fiber Control (OFC) the optical fiber link between two GBIC ports is continuously monitored by the open fiber link detection and laser control safety system; in the event of a break anywhere in the path, this control system prevents laser emissions from exceeding Class 1 levels. For the non-OFC links, the optical power from the laser transmitter is controlled and maintained at a lower power level such that the power emitted from either an open fiber or an open laser transmitter is guaranteed to be below the Class 1 limit. Class 1 laser products are not considered to be hazardous. There are no user maintenance or service operations or adjustments to be performed on any optical GBIC.

Usage Restrictions

Failure to comply with these usage restrictions may result in incorrect operation of the system and possibly points of access that may emit laser radiation above Class 1 limits established by the IEC and the U.S. DHHS.

1.Optical GBICs are designed and certified for applications using point-to point optical fibre links only. Use of the product with multiple input or multiple output optical links (for example, star couplers) is prohibited since it is incompatible with the product’s design and function and may require that the user certify the laser product again for conformance to the laser safety regulations.

2.An optical GBIC that contains OFC will not allow normal data transmission on the optical link unless it is connected to another GBIC that also contains OFC with the same OFC timings.

GigWorks MKII-16 Switch Model MKII-BASE16		Table Of Contents 7
Installer's/User's Manual	59003-01 Rev. A