V
Contents
General information
1
Application 3
Characteristics
Functional
5
. .
5
Technical summary
Analog line interface
Input impedance
Insertion loss
Frequency response
Message channel noise
Power requirements
Foreign and surge voltage protections
Overload level
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7
7
7
7
7
8
9
9
9
Analog message waiting line card description 553-3001-l 63