3-1. Unpacking
Unpack the box and check the items below :
LDP-9000BTU
Installation guide
3-2. Installation.
when installing or removing the option module the
Line power must be stopped.
If not, in the worst case, will damage the option
module or Keyset.
※ Caution
The Optional Unit connection should make earlier
and break later than the line cord.
a. After disconnecting the line,
open the dummy cover.(①-
②)
(on the bottom of the keyset)
b. Insert the LDP-9000BTU
board into the optional
connector on the keyset,
making sure that it is
connected securely. (③)
c. Hook the option module
cover onto the Keyset base.
And then turn the screw
clockwise to tighten.