Specifications

2 A)
B)
C)
3
A)
B)
C)
Unscrew the phone’s four mounting screws and lift
the base of the phone off the top.
CAUTION:
Do not touch electrical circuitry. To do so
will expose you to a risk of electrical shock
Gray Jack
and possibly damage the equipment.
White Jack
Rotate the base of the phone 180 degrees (so
the phone can be mounted parallel to the wall)
and then place the base back on the top.
Replace the four mounting screws.
Insert the phone cord through the center of the
stand and plug it into the WHITE jack on the
bottom of the phone. Plug the other end into
the modular wall jack.
Mount the phone on the wall plate using the
screw keyholes on the base of the stand. For
proper mounting, the wall plate must be an
AT&T 630B connecting block.
Connect the handset cord as described in “Desk
Mounting,” Step 1A, and label the button
sheet as in Step 3B of that procedure.
Connecting and Testing Telephones
1
To connect a phone, plug the modular telephone
mounting cord into a modular wall jack or directly into a
206 module extension jack. (If you are connecting a
standard phone and its mounting cord is loose, try an
AT&T D2R mounting cord instead.)
To install two phones (or other devices) on a single
extension jack, see “Combination Extensions” earlier
in this appendix.
2
A)
B)
C)
Test the telephone for proper operation—to test
the power and lights on a system phone,
press and hold the [ # ] button for five seconds.
Before releasing the [
# ] button, lift the handset.
All lights should light, the ringer should sound,
and (on the MLS-18D or MLS-12D phones
only) a test pattern should appear on the
display. (If not, call the appropriate support
telephone number as instructed on the inside
front cover.)
Replace the handset; the phone is now in normal
operating mode.
Mounting
Screws
Installation C-15