AT&T MERLIN LEGEND Installation & Maintenance Manual page 218

Installation
a. With the handset removed from the telephone, place the
telephone face down on a flat surface to the right of the
upside-down DSS(s).
b. Plug the D8AC cord from the IN jack of the DSS1 into the
jack labeled DSS on the telephone, and route the cord
through the cord channel.
c. Plug the D8W line cord into the jack labeled LINE of the
MLX telephone. The D8AC and D8W cords share the cord
channel on the telephone.
5. Turn the telephone and the DSS(s) face up with the telephone
now to the left of the DSS(s).
6. Insert one end of the coiled H4DU handset cord into the
handset and the other end into the jack on the side of the
telephone.
Notes:
If auxiliary power is not required, go to step 7.
If auxiliary power is required, go to step 8.
7. Connect the telephone (auxiliary power is not required) by
plugging the D8W cord into the wall jack. Go to step 9.
8. Connect the telephone (auxiliary power is required; see
Figure 61).
a. Plug the D8W cord from the telephone into the 8-
conductor modular jack of the 400B or 400B2 adapter.
b. Connect one end of the D6AP cord to the 2-conductor
(small) modular jack of the 400B or 400B2 adapter, and
plug the other end of the D6AP cord into the modular jack
of the KS22911,L2 or 329A power supply.
CAUTION:
Plugging the D6AP cord into the 8-conductor (large)
modular jack of the 400B or 400B2 adapter can cause
electrical damage to the control unit and the telephone.
3-110 Telephones and Consoles