Page 3 of 4
Copyright Emulex Corporation - All rights reserved, 1999
non-OFC links, the optical power from the laser transmitter is controlled and maintained at a lower power
level. The power emitted from either an open fiber or open laser transmitter is guaranteed to be below the
Class 1 limit. Class 1 laser products are not considered hazardous. No user maintenance, service
operations or adjustments can be performed on any GLM accessory.
GBIC
The optical GBIC is an integrated duplex data link for bi-directional communications over multimode or
single mode optical fiber. Each GBIC consists of a transmitter and receiver optical subassembly. The
transmitter subassembly contains a semiconductor laser emitting in the wavelength range of 770 to 860
nanometers for shortwave length GBICs and 1270 to 1355 nanometers for long wavelength GBICs. For
non-OFC links, the optical power from the laser transmitter is controlled and maintained at a lower power
level. The power emitted from either an open fiber or open laser transmitter is guaranteed to be below the
Class 1 limit. Class 1 laser products are not considered hazardous. No user maintenance, service
operations or adjustments can be performed the GBIC.
1x9 Transceiver
The 1x9 transceivers is an integrated duplex data link for bi-directional communications over multimode
fiber. Each 1x9 consists of a transmitter and receiver optical subassembly. The transmitter subassembly
contains a semiconductor laser emitting in the wavelength range of 770 to 860 nanometers for shortwave
1x9s. For non-OFC links, the optical power from the laser transmitter is controlled and maintained at a
lower power level. The power emitted from either an open fiber or open laser transmitter is guaranteed to
be below the Class 1 limit. Class 1 laser products are not considered hazardous. No user maintenance,
service operations or adjustments can be performed the 1x9 transceiver.
Return to top of page.
Usage Restrictions
Failure to comply with these usage restrictions may result in incorrect operation of the system and could possible
lead to points of access that may emit laser radiation levels above the Class 1 limits established in the U. S. by
the DHHS and within Europe by IEC 825-1/EN60825-1.
GLM
GBIC
1 x 9 Transceiver
GLM
The GLM is designed and certified for applications using point-to-point optical fiber 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 GLM’s certification.
The GLM will not allow normal data transmission on the optical link unless it is connected to another
similar GLM or compatible laser product. For OFC GLMs, another manufacturer’s laser product is not
considered compatible unless it contains the open fiber link detection and laser safety control system
(OFC) and is properly certified as a Class 1 laser product. Similarly, for non-OFC GLMs, a compatible
laser device must be non-OFC.
Any system level product that incorporates the GLM must provide power supply protection that
guarantees a voltage of 6.0 volts or less at the GLM. The functional power supply range of the GLM
