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PCMCIA 14400

ZOOM TELEPHONICS, INC.

PCMCIA 14400

Card Type

Fax, Modem (asynchronous)

Chip Set

Unidentified

Maximum Data Rate

14.4Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

PCMCIA Type II

Fax Class

Class I & II

Data Modulation Protocol

Bell 103/212A

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis

Fax Modulation Protocol

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

Error Correction/Compression

MNP10, V.42bis

V1920

Proprietary AT Command Set

AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD

Type:

Configuration

Format:

AT [cmds] %En [cmds]

Description:

Controls auto-retrain mode and auto-fallback/fall-forward

Command

Function

í %E0

Auto-retrain disabled

%E1

Auto-retrain enabled

%E2

Auto-fallback/fall-forward enabled

%E3

Auto-retrain enabled with fast hang-up

BIT MAPPED REGISTERS

Register

Default

S14

Unidentified

S16

Unidentified

S21

Unidentified

S22

Unidentified

S23

Unidentified

S27

Unidentified

S28

Unidentified

S31

Unidentified

S40

Unidentified

S41

Unidentified

BREAK SEND

Type:

Configuration

Format:

AT [cmds] \Bn [cmds]

Default:

3

Range:

1-9

Unit:

.1 second

Description:

Sends break to modem

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Description:

Configures action of break signal

COMPRESSION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Description:

Selects data compression

Command

Function

%C0

Data compression disabled

%C1

MNP5 enabled

%C2

V.42bis enabled

í %C3

MNP5 and V.42bis enabled

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Description:

Controls the type of connection the modem will operate in

Command

Function

\N0

Normal mode enabled

\N1

Direct mode enabled

\N2

Reliable mode enabled

í \N3

Auto-reliable mode enabled

\N4

LAP-M error correcting only enabled

\N5

MNP error correcting only enabled

DIAL

Type:

Immediate

Format:

AT [cmds] D<#> [cmds]

Description:

Dials telephone number according to any modifiers included in the string

Modifier

Function

L

Redials last number

P

Pulse dialing enabled

T

Tone dialing enabled

W

Dialing resumed following dial tone detection

,

Dialing paused for amount of time specified in S8 register

@

Modem waits for a ring-back signal followed by silence up to 5 second prior to executing the rest of the dial string.

R

Command recognized and not initiated

;

Modem returned to command mode after dialing.

!

Flash function initiated. Goes on-hook for amount of time specified in S29 register

S=(0-3)

Number in memory location &Zn dialed

^

Calling tone enabled, data mode only.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] \Gn [cmds]

Description:

Selects modem port flow control

Command

Function

í \G0

Flow control disabled

\G1

Flow control enabled

FLOW CONTROL

Type:

Register

Format:

AT [cmds] S39=n [cmds]

Description:

Select the type of flow control used

Command

Function

S39=0

Flow control disabled

í S39=3

Hardware flow control enabled

S39=4

Software flow control enabled

S39=5

Transparent software flow control enabled

S39=6

Both hardware and software flow control enabled

LINE SIGNAL LEVEL

Type:

Immediate

Format:

AT [cmds] %L [cmds]

Description:

Returns a value which indicates the received line signal level (-dBm)

LINE SIGNAL QUALITY

Type:

Immediate

Format:

AT [cmds] %Q [cmds]

Description:

Returns a value which indicates line signal quality

MAXIMUM BLOCK SIZE FOR TRANSMISSION

Type:

Configuration

Format:

AT [cmds] \An [cmds]

Description:

Sets the maximum transmittable block size

Command

Function

\A0

MNP block size is 64 characters

í \A1

MNP block size is 128 characters

\A2

MNP block size is 192 characters

\A3

MNP block size is 256 characters

MNP - STREAM/BLOCK MODE

Type:

Configuration

Format:

AT [cmds] \Ln [cmds]

Description:

Selects the transfer mode for MNP link

Command

Function

í \L0

Stream mode for MNP enabled

\L1

Block mode for MNP enabled

MNP10 - EXTENDED SERVICES

Type:

Configuration

Format:

AT [cmds] -Kn [cmds]

Description:

Selects MNP10 extended services

Command

Function

-K0

MNP10 disabled

í -K1

MNP10 enabled

-K2

MNP10 enabled on originate mode only

MNP10 - FALLBACK

Type:

Configuration

Format:

AT [cmds] -Qn [cmds]

Description:

Allows MNP10 to fall back to speeds slower than 4800bps

Command

Function

-Q0

MNP10 at 2400 and 1200bps disabled

í -Q1

MNP10 at 2400 and 1200bps enabled

MNP10 - LINK NEGOTIATION

Type:

Configuration

Format:

AT [cmds] *Hn [cmds]

Description:

Sets the speed at which MNP10 link negotiation will occur

Command

Function

í *H0

Link will be negotiated at highest possible speed

*H1

Link will be negotiated at 1200bps

*H2

Link will be negotiated at 4800bps

MNP10 - POWER LEVEL ADJUST

Type:

Configuration

Format:

AT [cmds] )Mn [cmds]

Description:

Controls automatic transmit power level adjustment during MNP 10 link negotiation

Command

Function

í )M0

Power level adjustment disabled

)M1

Power level adjustment enabled

TRANSMISSION LEVEL - CELLULAR

Type:

Configuration

Format:

AT [cmds] @Mn [cmds]

Default:

0

Range:

11-31

Unit:

-1 dBm

Description:

Sets the signal level for transmission while in cellular mode

Command

Function

@M0

-26 dBm

@M1

-30 dBm

@M2-@M10

-10 dBm

V.32 - COMPROMISE EQUALIZER

Type:

Configuration

Format:

AT [cmds] :En [cmds]

Description:

Controls V.32 compromise equalizer

Command

Function

:E0

Equalizer disabled

í :E1

Equalizer enabled