Zhone 3821Plus User's Guide download pdf (Page 60)

COMSPHERE 3821Plus Modem

3-34 January 1999 3821-A2-GB20-40

Dial Line

The Dial Line configuration options are used to

configure the modem for operation over dial lines.

Table 3-7 shows each Dial Line configuration option

as it appears on the LCD.

The Dial Line configuration group does not appear if

the modem is configured with the Sync Leased factory

preset template, or if the &L1, &L2, &L3, or &L4

command is entered.

Table 3-7

(1 of 3)

Dial Line Configuration Options

Modulation: V34

Nxt V34 V32bis/terbo V21/V22/BELL

Modulation determines the modem’s primary dial modulation group: V.34; V.32bis and V.32

terbo

; or V.21, V.22bis, V.22,

Bell 212A, and Bell 103J.

The factory default is V34 (V.34 modulations).

Dial LineRate: 33600(V34)

Nxt 33600(V34) 31200(V34) 28800(V34) 26400(V34) 24000(V34) 21600(V34) 19200(V34) 16800(V34)

14400(V34) 12000(V34) 9600(V34) 7200(V34) 4800(V34) 2400(V34)

- OR -

Nxt 19200(V32t) 16800(V32t) 14400(V32b) 12000(V32b) 9600(V32) 7200(V32b) 4800(V32)

- OR -

Nxt 2400(V22bis) 1200(V22) 1200(212A) 0–300(V21) 0–300(103J)

Dial Line Rate. This configuration option determines the modem’s data rate and modulation scheme for operation on dial

lines. Online changes do not take effect until a disconnect occurs. Dial Line Rate sets the upper limit rate and modulation;

lower speed connections may still be possible.

What Dial Line Rate configuration options are displayed depends on the setting of Modulation.

33600(V34), 31200(V34), 28800(V34), 26400(V34), 24000(V34), 21600(V34), 19200(V34), 16800(V34), 14400(V34),

12000(V34), 9600(V34), 7200(V34), 4800(V34) – The modem operates using V.34 modulation at the data rate selected.

The change does not take effect until the modem is reset. The modem can be forced by the remote modem to a lower

data rate. Note that if Automode is enabled and Dial Line Rate is set to V.34, the modem can connect in a non-V.34

modulation. However, if Dial Line Rate is not set to V.34, it cannot be Automoded to V.34.

19200(V32t), 16800(V32t), 14400(V32b), 12000(V32b), 9600(V32), 7200(V32b), 4800(V32) – The modem operates

using V.32

terbo

, V.32bis, or V.32 modulation at the data rate selected. The modem can be forced by the remote modem

to a lower data rate.

2400(V22bis), 1200(V22), 1200(212A) – Modem operates using the modulation and data rate selected.

0–300(V21), 0–300(103J) – Modem operates in full-duplex, Asynchronous mode. These data rates do not support V.42

or MNP error control.

The factory default is 33600(V34).

AT command equivalent is S-register S41=

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