Comdial and FXT Especificaciones descargar pdf (Pagina 97)

Pad Level—Transmit, Receive

(Gain And Attenuation Settings For Line Transmit And Receive)

This feature enhances the T1–E1 digital carrier transmission option, the pad level programming feature

adjusts voice levels for both the transmit and receive circuits in the individual channels.

The choices include: Gain 2, Gain 1, Nominal, Loss 1, Loss 2, Loss 3, Loss 4, and Loss 5. These settings

provide an approximate +6 to -15 dB range of choices. Starting at the Nominal setting, each gain level

represents an approximate 3 dB amplification of the signal level from the previous setting, and each loss

level represents an approximate 3 dB attenuation of the signal level from the previous setting. Because

digital transmission does not lose volume level as readily as analog transmission does, it is likely that the

receive level may be noticeably higher when using the E1 option. Therefore, installers may need to select a

low setting such as Loss 2 for the voice level receive parameter when programming this feature for E1 lines

that are being used exclusively for voice transmission. Further, if they choose a setting to increase the

receive gain, they should carefully examine speakerphone operation. It is possible to select a receive gain

that will, under certain conditions, interfere with proper speakerphone operation.

E911 Line Type

With the addition of the FXEMDD-MF line board for the FXT System, an E911 line type is provided. The E911

line type is a direct ringing, inbound line that supports E-911 protocols. This feature adds the following

type-specific selections to the programming choices: Wink Between Sequences, Reverse Before Ringing, and

Collect Info After ANI. Further, in support of the E-911 Line feature, there are two system timing selections for:

Intersequence Wink and Re-ring Wink/Flash.

To make the necessary VMMI programming for E911 Line Type, add the board to the system under the

Board/Slot Assignment screen; choose an E911 line type under Lines/Line Programming/Line Attributes

screen; click the check box for the assigned parameters under Lines/Line Programming/Line Type Specific

screen; and choose desired timing under System Timing/E911 Timing screen.

E & M Tie Line Support (Extension Hunting)

When an E and M tie line call rings at a station that the installer has disabled though programming action, the

system routes the call through the disabled station’s hunt list until it locates a group intercom for the call to ring.

Should all group intercoms be busy or should no one answer the call in a programmed number of rings, the

system then routes the call along the station’s call forwarding arrangement. With a hunt list containing up to

eight assigned group intercoms and access to each group intercom available to several system stations, many

users have an opportunity to service an E and M tie line caller. Coupling this flexibility with the station’s call

forwarding ability provides many chances for system users to service E and M tie line calls. An installer could

program a hunt list and a call forwarding scheme to an unassigned station and provide a designated E and M tie

line termination and routing center. There would be no need to connect a telephone to the station port to use the

feature in this manner. The installer could arrange several E and M tie line termination centers to service

different extension numbers. Each extension number could represent different calling categories, and ring at

different blocks of system stations.

End-to-End DTMF Signaling

The system accepts DTMF tones or digital signals from proprietary telephones and sends them as DTMF tones

through the public telephone network where they are received at a distant end for computer, voice mail, or other

peripheral feature access.

General Description 6 – 43

General Description GCA40–215

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Comdial and FXT Especificaciones Pagina 97

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