Port Description

Specifies a description for the port.

Enter a description of up to 62 alphanumeric characters. Do not use the following characters:

( ; ' " ) ]

I/F Mode

Specifies that the interface is connected to a data communication equipment (DCE) device.

Select DCE.

I/F Type

Specifies the daughter card as the interface type.

Select DCARD.

Channel Options

Specifies the voice channel or channels to enable on the 4WTO daughter card.

Each CTP port with the daughter card installed can support either one or two channels.

Select one:

• Channel 0—Enables only channel 0.
• Channel 1—Enables only channel 1.
• Dual Channel—Enables both channel 0 and channel 1.

Output Level

Specifies the output level for the 4WTO daughter card.

Note the following information about the values:

• 0—Gain is 2:3 (signal is attenuated 33%, or 1.8 dB).
• 25—Unity gain, which means there is no attenuation or gain.
• 255—Gain is 4:1 (signal is amplified 400% or 6 dB).

Intermediate values are derived with linear interpolation. The actual gain depends on the impedance of the attached device.

Enter a number from 0 through 255.

Input Level

Specifies the input level for the 4WTO daughter card.

Note the following information about the values:

• 0—Setting the value to 0 attenuates the signal 33% (1.8 dB).
• 25—default and is the unity value (no attenuation or gain).
• 255—Setting the value to 255 amplifies the signal 400% (6 dB).

Note the following information about the values:

• 0—Gain is 2:3 (signal is attenuated 33%, or 1.8 dB).
• 25—Unity gain, which means there is no attenuation or gain.
• 255—Gain is 4:1 (signal is amplified 400% or 6 dB).

Intermediate values are derived with linear interpolation. The actual gain depends on the impedance of the attached device.

Enter a number from 0 through 255.

Port Speed

Enter a number from 0.00100 through 12288.00000 KHz.

Talk Squelch

Enables or disables the active squelch function on the circuit.

If enabled, specifies whether the squelch is active or inactive.

The squelch function gates local audio output when DSR-A (channel 1) or RTS-A (channel 0) inputs are active/inactive.

Select one:

• DISABLED—Disables the active squelch function on the circuit
• ENABLED/ACTIVE—Squelch input is grounded, and analog output is disabled.
• ENABLED/INACTIVE—No signal is applied to the squelch input. Input is open, and analog output is possible.

Clock Cfg

Specifies the type of clocking for the port.

To prevent voice channels from generating occasional noise bursts caused by unsynchronized nodes, we recommend that you configure one end of the voice port (not both) for adaptive clocking or lock both ends to clock references.

Select one:

• Custom—Custom clocking configuration is used.
• Voice/IRIG-B Master End—This end of the circuit generates a clock signal and sends it to the remote end.
• Voice/IRIG-B Slave End—This end of the circuit receives the clock signal from the remote end. The clock slave uses its period to determine when to sample data and how to transmit data across the link.