3
A. Dimple
C. Volume control
B. Listen/talk toggle switch
D. Call push button
4
A. Terminal block pinout G. Ground
NOTE: Terminal Block accepts 10 ‑ 22
AWG wire.
B. Dry contact
H. 24 VDC in/out (+)
C. For call
I. Neutral
D. Audio (‑)
J. Hot
E. Audio (+)
K. Earth ground
F. Remote control
L. 120/240VAC in
290A4725-03
BACK VIEW
(ORANGE)
(YELLOW)
(BLACK)
(BLACK)
(BROWN)
D
C
B
(BLACK)
(GRAY)
A
290A4725-04
10
9
8
7
6
5
4
3
2
1
D
B
C
E
G
I
L
K
J
A
F
H
Summary of Contents for AD-28X-MV
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