P
RECAUTIONARY
M
EASURES
XIV
Cooling and Airflow
Please be aware that slots and openings on the front and rear side of the chassis are
designed for ventilation; to make sure reliable operation of your system and to protect it
from overheating, these openings must not be covered or blocked. The openings should
never be covered or blocked by placing the product on a bed, sofa, rug, or other similar
surface. This product should never be placed near or over a radiator or heat register, or in a
built-in installation unless proper ventilation is provided.
Laser Peripherals or Devices
Use certified and rated Laser Class I for Optical Transceiver product.
Heed safety instructions:
Before working with the system, whether using this manual or
any other resource as a reference, pay close attention to the safety instructions. Adhere to
the assembly instructions in this manual to ensure and maintain compliance with existing
product certifications and approvals. Use only the described, regulated components spec-
ified in this manual. Use of other products / components will void the UL listing and other
regulatory approvals of the product and will most likely result in non-compliance with
product regulations in the region(s) in which the product is sold.
System power on/off:
To remove power from system, you must remove the system from
rack. Make sure the system is removed from the rack before opening the chassis, adding,
or removing any non hot-plug components.
Hazardous conditions, devices and cables:
Hazardous electrical conditions may be
present on power, telephone, and communication cables. Turn off the system and discon-
nect the cables attached to the system before opening it. Otherwise, personal injury or
equipment damage can result.
CAUTION!
C
AREFULLY
ROUTE
CABLES
AS
DIRECTED
TO
MINIMIZE
AIRFLOW
BLOCKAGE
AND
COOLING
PROBLEMS
. F
OR
PROPER
COOLING
AND
AIRFLOW
,
OPERATE
THE
SYSTEM
ONLY
WITH
THE
CHASSIS
COVERS
* /
AIR
DUCT
INSTALLED
.
O
PERATING
THE
SYSTEM
WITHOUT
THE
COVERS
/
AIR
DUCT
IN
PLACE
CAN
DAMAGE
SYSTEM
PARTS
. T
O
INSTALL
THE
COVERS
* /
AIR
DUCT
:
Check first to make sure you have not left loose tools or parts inside the system.
Check that cables, add-in cards, and other components are properly installed.
Attach the covers* / air duct to the chassis according to the product instructions.
* May not apply to all systems.
CAUTION!
T
O
AVOID
RISK
OF
RADIATION
EXPOSURE
AND
/
OR
PERSONAL
INJURY
:
Do not open the enclosure of any laser peripheral or device.
Laser peripherals or devices are not serviceable.
Return to manufacturer for servicing.
!
!
