HwMuseum | Index

ZOOM TELEPHONICS, INC.

56K PCI DUALMODE

Card Type

Modem, Fax

Chip Set

Unidentified

Maximum Modem Rate

56Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

Bell 103A/212A

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34, V.90, K56 flex

Fax Modulation Protocol

ITU-T V.17, V.21CH2, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I

Data Bus

32-bit PCI

Card Size

Half-length, half-height card

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, A/

A, E, H, M, P, Q, T, V, X, Y, Z

&C, &D, &R, &V, &W, &X, &Y, &Z

Extended AT Commands

\G, \W

Note: See MHI Help File for full command documentation.

Proprietary AT Command Set

TRANSMIT CARRIER

Type:

Configuration

Format:

AT [cmds] Cn [cmds]

Description:

Controls the transmit carrier switching

Note: Command performs no function. Included fort compatibility only.

 

DIAL

Type:

Immediate

Format:

AT [cmds] D<#> [cmds]

Description:

Dials telephone number according to any modifiers included in the string

Note:

Any combination of modifiers can be used to produce the desired dial functions in sequence.

Command

Function

DL

Re-dial last number

DP

Pulse dialing enabled

DR

Answer mode enabled; originate mode disabled following handshake initiation.

DS=n

Dial stored telephone number n

DT

Tone dialing enabled/Pulse dialing disabled

DW

Dialing resumed following dial tone detection

D,

Dialing paused for amount of time specified in S8 register

DWXY

Optional method of denoting telephone numbers. Letters enclosed in quotes are interpreted as numbers according to the system found on a telephone keypad.

D!

Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.

D@

Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string.

DJ

Perform MNP10 link negotiation at 1200bps

DK

Enable power level adjustment during MNP 10 link negotiation

D&

Wait for &T bong tone for credit card dialing before continuing with the remaining dial string

D;

Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports product code

I1

Reports the 3 digit pre-computed ROM checksum

I2

Tests and reports ROM checksum

I3

Reports the modem ROM version

I4

TBD

I5

TBD

I6

Reports the modem data pump and model

 

 

 

 

 

 

 

 

SPEAKER VOLUME

Type:

Configuration

Format:

AT [cmds] Ln [cmds]

Description:

Controls speaker volume

Command

Function

L0

Low volume setting

L1

Low volume setting

í L2

Medium volume setting

L3

Highest volume setting

JACK TYPE

Type:

Configuration

Format:

AT [cmds] &Jn [cmds]

Description:

Selects jack type

Note: Command performs no function. Included for compatibility only.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables flow control options

Command

Function

&K0

Flow control disabled

&K1

Reserved

&K2

Reserved

í &K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled

&K5

Transparent XON/XOFF flow control enabled

&K6

Both RTS/CTS and XON/XOFF flow control enabled

 

 

 

 

 

COMMUNICATIONS MODE

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects communications mode

Command

Mode

í &M0

Asynchronous mode

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

&S0

DSR forced high

í &S1

DSR high only while modem is handshaking or connected

Extended AT Commands

V.23 MODE

Type:

Configuration

Format:

AT [cmds] %Fn [cmds]

Description:

Selects V.23 split-speed and half-duplex

Command

Function

%F1

75bps transmit, 1200bps receive (split-speed)

%F2

1200bps transmit, 75bps receive (split-speed)

%F3

1200bps transmit, 1200bps receive (half-duplex)