Lenovo ThinkServer LPe12000 Installation Manual page 18

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standards require that the system-level product has a Class 1 information label permanently attached
and clearly visible whenever access to the GLM, GBIC, 1x9 and small form factor transceiver optical port
is possible. Each Class 1 product shall have affixed an explanatory label bearing the words:
Alternatively, at the discretion of the manufacturer, the same statement may be included in user
information. If a label is used, an example of the IEC Class 1 information label that is suitable for most
European countries is shown below. The label consists of black printing on a white background.
Languages represented on this 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 Transceiver
The small form factor 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 shortwave length small form factor transceivers and
1270 to 1355 nanometers for long wavelength small form factor transceivers. 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 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 5.0 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
3.465V 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 5.0 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.
LPe12000, LPe12002 and LPe12004 Hardware Installation Manual
Page 15

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