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Section 300-Installation Chapter 5. Peripheral Equipment
DBS-2.3/9.2-300 DBS Manual - Revised April 2000 5-9
Note:
To change the volume levels of the music sources, adjust the
variable resistors on the SCC card.
Table 5-3. SCC variable resistors
Figure 5-4. Installation of music-on-hold and background music
Variable Resistor Purpose
SCC-A
VR1 Adjusts CO ringing tone volume.
VR5 Adjust MOH and BGM volume.
SCC-B
VR1 Adjusts MOH volume.
VR2 Adjust BGM volume.
VR6 Adjusts CO ringing tone volume.
CN2
MOHInput
MotherBoard
BGM
Connector
BGM
Connector
VR2
VR1
VR6
SW 4
(SCC-BOnly)
Earphone
Jack
Radio
BG M only
ToMOH
Circuit
ConnectPins 3 and 2 toroutemusicfrom a single source.
ConnectPins 1 and 2 toroutemusicfrom m ultiplesources
oruse internalM O H tone.
Tape
Recorder
Radio
CN5on
MotherBoard
BGM
Connector
To B G M
Circuit
SCC-A=CN5
SCC-B=CN4
SCC
3
2
1
Tape Recorder
MOHor
M O H and BG M
Earphone
Jack
CN5 CN4
SCC