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an EX8208 switch in a two-post rack, you must install the power cord tray in the rack
before installing the switch.
NOTE: The EX8216 switch can be installed only in a four-post rack. Installation in a
two-post rack is not supported.
The power cord tray provides support for the front of the EX8208 chassis during
installation of the switch in a two-post rack. The front edge of the chassis rests on the
upper edge (lip) of the power cord tray.
The power cord tray provides a place to organize and tie down the power cords for the
power supplies.
The power cord tray uses 1 U of rack space, so the total space occupied by an EX8208
switch chassis and power cord tray is 15 U, and the total space occupied by an EX8216
switch chassis and power cord tray is 22 U.
Ensure that you have the following tools and parts available to install the power cord
tray:
•
APhillips(+)screwdriver,number1,2,or3,dependingonthesizeofyourrackmounting
screws
•
4 mounting screws appropriate for your rack to attach the power cord tray to the rack
To install the power cord tray (see Figure 44 on page 137 and Figure 45 on page 137):
1. Remove the power cord tray from the accessory box.
2. Decidewheretopositiontheswitchintherack.Iftherackisempty,choosethelowest
possible location. See“RackRequirements foran EX8208 Switch” on page 97, Rack
Requirements for an EX8216 Switch, “Cabinet Requirements and Specifications for
an EX8208 Switch” on page 100 and Cabinet Requirements and Specifications for
an EX8216 Switch.
NOTE: To mount an EX8208 switch on a two-post rack, you must install the power
cord trayin the rackbefore installing the switch. See Figure45 on page 137. Installation
of an EX8216 switch in a two-post rackis not supported.
3. Position the power cord tray in the rack space immediately below the position in
which you want to install the switch (in a two-post rack) or where the switch is
installed (in a four-post rack) (see Figure 44 on page 137). Line up the screw holes
ofthe powercord tray withthe holesin therack.Use 4 mountingscrewsappropriate
for your rack to attach the power cord tray to the rack.
Copyright ©2010,Juniper Networks,Inc.136
CompleteHardwareGuide forEX8208 EthernetSwitches