Matrix SETU VFXTH System Manual

Matrix SETU VFXTH System Manual 78
You are recommended to conduct the AC Impedance Test for the line connected to the FXO Port to
determine the most appropriate values for the AC Termination Impedance, CO Termination and the CO
Line Type. For more information see the topic “AC Impedance Test (FXO)”.
• If required, you may adjust the Rx Gain (Receiving Volume) on the FXO Port to increase or decrease the
volume of the calling party's voice being transmitted to you. Select the required Rx Gain level. Default: +0
db.
• If required, you may also adjust the Tx Gain (Transmit Volume) on the FXO Port to increase or decrease
the volume of your voice being transmitted to the remote party. Select the desired Tx Gain. Default: +0 db.
• In the On-Hook Speed field, set the amount of time required for the line-side device (DAA) to go On-hook.
The On-hook speed specified is measured from the time the On-hook bit is cleared until loop current
equals zero. Select the desired On-hook Speed from the following options:
• <0.5ms
•3 ms
• 26 ms
Default: <0.5 milliseconds.
• In the OFF- Hook Speed field, define the time required by the line transients to settle, after which
transmission or reception can occur. Select the desired Off-hook Speed from the following options:
• 512 ms
• 128 ms
• 64 ms
•8 ms
Default: 8 milliseconds.
• If you want to limit the loop current, select the Current Limiting check box. The Loop Current will be
limited to a maximum of 60mA. Default: Disabled.
• For the line-side device (DAA) of the FXO Port to operate, set the Minimum Loop Current. You can select
the minimum operational loop current from the following options as per your requirement:
•10
•12
•14
•16
Default: 10 mA.
• To adjust the TIP/Ring Voltage on the line side, set the Tip Ring Voltage (Volts).
In countries where Low voltage is required, use lower TIP/RING voltage. Adjust the values of the Tip Ring
Voltage to match your country requirements from the following options:
•3.1
•3.2
•3.35
•3.5
Default:3.5 volts.
• Set the Ringer Impedance—High or Synthesized—for the FXO Port according to your country-specific
requirement.

Matrix SETU VFXTH Specifications

General

Brand	Matrix
Model	SETU VFXTH
Category	Gateway
Language	English