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Page 200 of 504 M3900 installation and configuration
553-3001-367 Standard 3.00 August 2005
Figure 39
KBA Footstand Assembly
7 To add a second KBA:
a. Place the telephone and the two modules face down on a
non-abrasive surface.
b. Plug the cable from the second module into the 10-pin connection
port on the first module.
c. Thread the cable through the routing clips on both modules.
d. Install the Expansion KBA footstand.
Installing the Single KBA footstand
Use Procedure 37 to install the Single KBA footstand.
Expansion KBA
Footstand Assembly
Single KBA
Footstand Assembly
Expansion KBA Plate
Install and tighten
these screws
Tighten
these screws