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T1 Modem Bank
12
Requirements for Rack Installations
The T1 Modem Bank chassis is made to be inserted into a standard 19-inch or a 24-inch equipment rack. The T1
Modem Bank is shipped from the factory with two rack-mounting brackets (“ears”) installed for a 19-inch rack. If
you wish to install a T1 Modem Bank into a 19-inch rack, go now to the instructions in “General Rack Installation
Directions” on page 14. Before you can install a T1 Modem Bank into a 24-inch rack, you must first remove the
rack-mounting brackets and then re-install them in the correct position for a 24-inch rack.
Mounting Bracket Installation for a 24-inch Rack
Tools needed: Phillips screwdriver; flat blade screwdriver
1. The rack-mounting brackets must be removed from their 19-inch rack position. Remove the three screws that
fasten each of the brackets to the chassis. (See Figure 4).
Figure 4 Bracket Position For 19-inch Rack
2. Re-install the brackets so that the long sides of the brackets extend outward from the chassis; the shorter sides of
the brackets must be flat against the sides of the chassis as shown in Figure 5.