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INSTALLATION-PERIPHERALS
SECTiON lOO-816-207
MARCH1993
DK8 KSU OR DK16 BASE KEY SERVICE UNIT
TWISTED PAIR ; - ;R; - - - - - - -
““-“““y
I
24 AWG. -
MOH/BGM
I
VOLUME CONTROL
BACKPLANE - 1
I
r)
I
MUSIC-
MOH TO:
MAX.
I
MUSIC
ON-HOLD
CO LINES
T
I )
AND
ON-HOLD
I
STATIONS
I
ON-HOLD
I
I
ON/OFF
PAGE OR
I
CONTROL
I
(24 VOLT
t
BACKGROUND I
BGM TO:
MUSIC
I
PAGEIBGM
I
DIGITAL
MAX)
I
CONTROL
AMPHENOL 1
I )
AND
I
ELECTRONIC
MOH CONTROL-CHOOSE BASE UNIT
OR PIOU/PIOUS RELAY:
*MOH SOURCE SPECIFICATIONS:
OPTIONAL
EXTERNAL PAGE/
‘INPUT IMPEDANCE: 6OOQ
BGM OUTPUTS
‘INPUT VOLTAGE:
RECOMMENDED LEVELS,
MIN. = 0.14 VRMS (-15 dBm)
MAX. = 0.77 VRMS (0 dBm)
TYPICAL MOH SOURCES:
l
TAPE PLAYER
l
TUNER
I
,,,,,,,J
DK16 EXPANSION UNIT
PIOU/PIOUS (NOTE)
( ) PIN N0.s OF PIOU
AMPHENOL CONNECTOR
NIGHT TRANSFER
MOH/NT
RELAY CONTACT
JUMPER PLUG (MAKE OR BREAK)
NOTE:
W2, IF USING PIOUS
(SEE FIGURE 7-7)
RELAY CONTACT SPECIFICATION:
24 VDC MAX.
1 AMPERE, MAX.
DKB KSU relay or DK16 Base Unit relay can be
programmed (77-l) as the MOH control relay: or in DK16
the PIOU MOH/NT relay can be used to control MOH.
FIGURE 7-1
DK8 AND DK16 MUSIC-ON-HOLD AND BACKGROUND MUSIC FUNCTIONAL DIAGRAM
(SEE MDF WIRING DIAGRAM FOR DETAILS)
7-2