Operation Manual

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Telco Meters Tab (Not available on the VH20)
The Telco Meters tab displays a round-trip signal flow diagram for the selected Telco Rx, as well as real-time level
meters for the signal at each stage of processing. The settings on this tab cannot be modified.
NOTE: When you click the Close button (bottom right corner of screen), or close the window
manually, any changes you make in the tabs of the Channel Property Configuration:
Telco RX screen are automatically saved.
The Telco meters include:
Telephone Echo Return Loss (TERL)• : This meter shows the amount of echo loss from the telephone line
to the unit.
Telephone Echo Return Loss Enhancement (TERLE)• : This meter shows the enhancement added by the
telephone hybrid to reduce echo below the audible level.
Total Telephone Echo Reduction (TTER)• : This meter shows the sum of TERL and TERLE.
Transmit Input• : This meter shows the audio level input from the matrix to the telephone line.
Transmit Output• : This meter shows the transmit audio level output to the telephone line.
Receive Input• : This meter shows the audio level input received from the telephone line.
Receive Output• : This meter shows the receive audio level output to the matrix.
Dialer Button
The Dialer button opens the telephone dialer, allowing you to place conference calls.