Lenovo ThinkServer TD340 - Manual (Page 23)

LPe16000 Series HBA Installation Manual P007648-01A Rev. A
3. References
Laser Safety Notice
22
label are English, German, Finnish and French, and they represent the minimum set for
acceptance of a Class 1 product in most European countries.
Product Information
Small Form Factor Pluggable Transceiver
The small form factor pluggable transceiver is an integrated duplex data link for
bi-directional communications over multimode or single mode optical fiber. Each small
form factor transceiver 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 small form factor pluggable short-wavelength
transceivers and 1270 to 1355 nanometers for long wavelength small form factor
pluggable transceivers. For non-optical fiber cable (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 small form factor
transceiver.
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
EN60825-1/EN60825-2.
Short wavelength and long wavelength small form factor transceivers allow normal
data transmission on the optical link when they are connected to another compatible
laser product. Short wavelength and long wavelength small form factor transceivers
embedded in Emulex host adapter are non-OFC. For non-OFC links, a compatible laser
device must be non-OFC and certified as a Class 1 laser product.
Any system level product that incorporates the small form factor transceivers must
provide power supply protection that guarantees a voltage of 4.0 Volts or less at the
small form factor transceivers. The functional power supply range of the small form
factor transceivers product is specified as 3.135 to 3.465 Volts typically. Operation
outside of this range may degrade the performance and lifetime of the transceiver. The
transceiver will remain operational with laser emissions below Class 1 limits provided
the power supply level at the adapter remains at or below 4.0 Volts. If the power supply
level rises above 5.0 Volts, the small form factor transceiver cannot be guaranteed to
operate correctly and could result in laser emissions that may exceed Class 1 limits.