CONNECTOR PINOUTS
© Polycom, Inc. 55 VORTEX EF2211/EF2210 Reference Manual
A
DDITIONAL
 N
OTES
Caution!   Failure to use all four screws to attach the EF2211/
EF2210 to the rack may result in uneven loading and 
cause a safety hazard.
Caution!  Ensure that the power supply is securely located such 
that it cannot become dislodged and fall. Such a fall 
could cause personal injury or equipment failure.
Caution!  When mounting a EF2211/EF2210 in a rack, consider-
ation should be given to airflow and operating ambi-
ent temperatures inside the rack. To ensure safe 
operation of the EF2211/EF2210, ambient operating 
temperatures inside the rack should not exceed 40 
degrees Celsius. Allow 2 inches (51mm) of open space 
in front of the EF2211/EF2210, 2 inches (51mm) on 
either side, and 4 inches (102 mm) behind the unit for 
proper ventilation. Equipment should not be installed 
in the rack in such a way as to interfere with the venti-
lation of the EF2211/EF2210.
Caution!   Consideration should be given to the connection of 
the equipment to the supply circuit and the effect that 
overloading of circuits could have an overcurrent pro-
tection and supply wiring. Appropriate consideration 
of equipment nameplate ratings should be used when 
addressing this concern.
Caution!   Reliable earthing of rack-mounted equipment should 
be maintained. Particular attention should be given to 
supply connections other than direct connection to 
the Branch (use of power strips).