Paradyne 392xPLUS Train Time Long End Long Short, Asymmetric Rate Disabled Nxt Enable Disable

Models: 392xPLUS

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DCP Configuration

Table 4-3

(2 of 2)

Dial Line Configuration Options Ð Multiport Mode l

Dial Tx Level: Permissv(±9)

Nxt Permissv(±9) ±10 ±11 ±12 ±13 ±14 ±15 ±16 ±17 ±18 ±19 ±20 ±21 ±22 ±23 ±24 ±25 ±26 ±27 ±28 ±29 ±30 ±31 ±32

Dial Transmit Level. Selects the modem's transmit power level over dial lines. The transmit output level can be selected in 1 dBm decrements from ±9 dBm to ±32 dBm.

NOTE: In North America the range of allowable values is ±10 dBm to ±32 dBm, plus Permissive (±9 dBm). This configuration option is locked in other countries (the user cannot change the level).

NOTE: The factory default setting is country dependent. Default is Permissv(±9) in North America.

Train Time: Long

End Long Short

Train Time. Controls V.34 and V.32 family train time. Determines whether minimum or maximum time durations are used during the handshaking sequence for both dial and 4-wire/2-wire leased-line applications.

Long ± Selects long train. Use this setting whenever far-end frequency offset (phase roll) may be encountered. This is usually only required when transmitting over satellite links.

Short ± Allows the modem to train-up faster when using V.32 terbo, V.32bis, or V.32 modulation.

Asymmetric Rate: Disabled

Nxt Enable Disable

This configuration option does not appear unless V.34 is enabled.

Asymmetric Rate. Controls rate symmetry when running V.34 modulation by enabling or disabling the V.34 modulation from using equal transmit and receive rates.

Enable ± The modem operates in asymmetric rate mode (the transmit and receive rates can be different) when running V.34 modulation. The Asymmetric Rate configuration option must be enabled in both modems.

Disable ± The modem operates in symmetric rate mode (the transmit and receive rates are identical) when running V.34 modulation. Either modem can force symmetric mode by disabling the Asymmetric Rate configuration option.

3920-A2-GN31-30

November 1996

4-23

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Paradyne 392xPLUS operation manual Train Time Long End Long Short, Asymmetric Rate Disabled Nxt Enable Disable