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[Setting telephone's talking volume levels]
When the talking volume is low, set it using the switch SW101 (for Line 1) or SW201 (for Line 2) on the
AI-900AL card as illustrated below.
Setting of telephone volume switches on the AI-900AL card
AI-900AL
SW101
D110
SW201
D210
CN1
28
Telephone
volume
switch
Telephone's talking volume (Line 1)
Telephone's talking volume (Line 2)
Front view of
the circuit board
Telephone's talking volume setting
1
2
1
ON
ON
Volume "low"
Volume "middle"
(Factory-preset)
2
1
2
ON
Volume "high"
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