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PROMETHEUS PRODUCTS, INC.

PC CYBERPORT PRO 288EV (PC288EV)

MAC CYBERPORT PRO 288EV (M288EV)

Card Type

Fax, Modem (synchronous/asynchronous), Voice

Chip Set

Unidentified

I/O Options

Speakerphone, Voice-mail

Maximum Data Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

External

Fax Class

Class I & II

Data Modulation Protocol

Bell 103A/212A

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

Fax Modulation Protocol

ITU-T V.17, V.21CH2, V.27ter, V.29, V.33

Error Correction/Compression

MNP5, V.42, V.42bis

CONNECTIONS

Function

Label

Function

Label

Line out

CN1

RS-232/422

CN5

Line in

CN2

DC power

CN6

Speaker out

CN3

Power switch

SW1

Microphone in

CN4

   

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

AA

Red

On

Auto-answer enabled

AA

Red

Off

Auto-answer disabled

AA

Red

Blinking

Phone is ringing

CD

Red

On

Carrier signal detected

CD

Red

Off

Carrier signal not detected

OH

Red

On

Modem is off-hook

OH

Red

Off

Modem is on-hook

IO

Red

On

Modem is transmitting or receiving data

IO

Red

Off

Modem is not transmitting or receiving data

MR

Red

On

Power is on

MR

Red

Off

Power is off

Proprietary AT Command Set

ASYNCHRONOUS - CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Description:

Sets the type of connection used for asynchronous operation

Command

Function

\N0

Wire mode enabled

\N1

Direct V.14 asynchronous mode enabled

\N2

MNP reliable mode enabled

\N3

Auto-reliable mode enabled

\N4

V.42 reliable mode enabled

\N5

V.42 auto-reliable mode or MNP mode enabled

\N6

V.13 - simulated controlled carrier mode enabled

AUTO-FALLBACK/FALL-FORWARD

Type:

Configuration

Format:

AT [cmds] &An [cmds]

Description:

Selects auto-fallback/fall-forward

Command

Function

&A0

Auto-fallback/fall-forward disabled

&A1

Auto-fallback/fall-forward enabled

AUTO-RELIABLE FALLBACK CHARACTER

Type:

Configuration

Format:

AT [cmds] %An [cmds]

Default:

Unidentified

Range:

0-127

Unit:

ASCII

Description:

Sets the character used as the auto-reliable fallback character; %A0 will disable this function.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Description:

Configures action of break signal

Command

Function

\K0

Break sent to remote modem and buffered cleared

\K1

Break sent to remote modem and buffered saved

\K2

Timed break to remote modem and buffered saved

\K3

Break ignored

\K4

Timed break until no break character and buffered saved

\K5

Timed break until no break character and buffered saved

BUSY OUT

Type:

Configuration

Format:

AT [cmds] %Bn [cmds]

Description:

Sends busy signal when modem is in a test mode.

Command

Function

%B0

Do not send busy signal when modem is in test mode

%B1

Send busy signal on loss of DTR

%B2

Send busy signal when modem is in analog loopback

%B3

Send busy signal when modem is in analog loopback or on loss of RTS or DTR

%B4

Send busy signal on loss of RTS

CHARACTER ABORT

Type:

Configuration

Format:

AT [cmds] %Kn [cmds]

Description:

Controls character abort

Command

Function

%K0

2 second delay until character abort

%K1

Character abort disabled

CHARACTER LENGTH

Type:

Configuration

Format:

AT [cmds] \Bn [cmds]

Description:

Controls character length

Command

Function

\B0

6N1

\B1

7N1

\B2

7P1, control is set by \P command for parity type

\B3

8N1

\B4

7P2, control is set by \P command for parity type

\B5

8P1, control is set by \P command for parity type

COMPRESSION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Description:

Selects data compression

Command

Function

%C0

Data compression disabled

%C1

Transmit and receive path enabled

%C2

Transmit path enabled in V.42bis

%C3

Receive path enabled in V.42bis

CONNECT MESSAGE

Type:

Configuration

Format:

AT [cmds] \Vn [cmds]

Description:

Selects connect message type reporting

Command

Function

\V0

CONNECT reported as VF speed upon data mode, link message after link negotiation

\V1

CONNECT reported as DTE speed after link negotiation

\V2

CONNECT reported as VF speed after link and MNP negotiation

\V3

CONNECT reported as DTE speed after protocol negotiation

DATA CARRIER DETECT (DCD)

Type:

Configuration

Format:

AT [cmds] &Cn [cmds]

Description:

Selects the DCD options

Command

Function

&C0

DCD enabled

&C1

Real mode enabled; follow modem energy detection.

&C2

DCD enabled after carrier signal detected

DATA SET READY (DSR) - TEST MODE

Type:

Configuration

Format:

AT [cmds] %Dn [cmds]

Description:

Selects DSR options in test mode

Command

Function

%D0

DSR forced high during analog loopback

%D1

DSR low during this test

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

! or &

Flash function initiated. Modem commanded to go off-hook for ½ second before returning on-hook.

, or <

Dialing paused for amount of time specified in S8 register

:n

Redial for n times until data mode is established

;

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

@

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.

Ln

Link to cell n when modem cannot establish data mode

P

Pulse dialing enabled

R

Answer mode enabled; originate mode disabled following handshake initiation.

S

Dial stored telephone number

T

Tone dialing enabled/Pulse dialing disabled

W

Dialing resumed following dial tone detection; for amount of time specified in S6 register

DTE INTERFACE-CONTROLLED TEST

Type:

Configuration

Format:

AT [cmds] %En [cmds]

Description:

Controls DTE interface-controlled tests

Command

Function

%E0

Tests controlled by DTE interface pins disabled

%E1

Tests controlled by DTE interface pins enabled

DTE SPEED

Type:

Configuration

Format

AT [cmds] \Tn [cmds]

Description:

Sets the maximum allowable DTE speed

Command

Function

\T0

Autobaud

\T1

Last AT speed

\T2

300bps

\T3

1200bps

\T4

2400bps

\T5

4800bps

\T6

7200bps

\T7

9600bps

\T8

12.0Kbps

\T9

14.4Kbps

\T10

16.8Kbps

\T11

19.2Kbps

\T12

21.6Kbps

\T13

24Kbps

\T14

26.4Kbps

\T15

28.8Kbps

\T16

38.4Kbps

\T17

57.6Kbps

\T18

76.8Kbps

\T19

115.2Kbps

\T20

128Kbps

DTR DIALING

Type:

Configuration

Format:

AT [cmds] %Zn [cmds]

Description:

Controls DTR dialing

Command

Function

%Z0

DTR is ignored

%Z1=n

Dial from cell n

%Z2

Go off-hook and attempt to handshake

FIXED PROFILES

Type:

Configuration

Format:

AT [cmds] &Fn [cmds]

Description:

Controls active profile to values found in fixed profile

Command

Function

&F0

PSTN, asynchronous, V.42, V.42bis

&F1

PSTN, synchronous

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] \Gn [cmds]

Description:

Selects modem port flow control

Command

Function

\G0

Flow control disabled

\G1

XON/XOFF signals trapped by local modem

\G2

Flow control enabled in transmit path

\G3

Transmit and receive path enabled with pass-through

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] \Qn [cmds]

Description:

Sets type of flow control used by modem

Command

Function

\Q0

Flow control disabled

\Q1

Bi-directional XON/XOFF flow control enabled

\Q2

CTS flow control by DCE enabled

\Q3

Bi-directional RTS/CTS flow control enabled

\Q4

Unidirectional XON/XOFF flow control by DCE enabled

HANDSHAKE MODE - PSTN

Type:

Configuration

Format:

AT [cmds] &Hn [cmds]

Description:

Set the handshake mode when originating

Command

Function

&H0

GDC fast auto (28.8Kbps - 300bps)

&H1

GDC fast only (28.8Kbps - 9600bps)

&H2

V.32bis automatic (14.4Kbps - 300bps)

&H3

V.32bis only (14.4Kbps - 4800bps)

&H4

V.32 automatic (9600bps - 300bps)

&H5

V.32 only (9600bps - 4800bps)

&H6

V.22bis only (2400bps - 1200bps)

&H7

V.22 only (1200bps)

&H8

Bell 212A only (1200bps)

&H9

Bell 103 only (300bps)

&H10

V.21 only (300bps)

MESSAGE RESPONSE SPEED

Type:

Configuration

Format

AT [cmds] %Rn [cmds]

Description:

Sets the maximum allowable message speed

Command

Function

%R0

Autobaud

%R1

Speed of last connection

%R2

300bps

%R3

1200bps

%R4

2400bps

%R5

4800bps

%R6

7200bps

%R7

9600bps

%R8

12.0Kbps

%R9

14.4Kbps

%R10

16.8Kbps

%R11

19.2Kbps

%R12

21.6Kbps

%R13

24Kbps

%R14

26.4Kbps

%R15

28.8Kbps

%R16

38.4Kbps

%R17

57.6Kbps

%R18

76.8Kbps

%R19

115.2Kbps

%R20

128Kbps

OVERSPEED CORRECTION

Type:

Configuration

Format:

AT [cmds] \An [cmds]

Description:

Controls overspeed correction

Command

Function

\A0

1.25% asynchronous overspeed correction enabled

\A1

2.5% overspeed correction enabled

PARITY CONTROL

Type:

Configuration

Format:

AT [cmds] \Pn [cmds]

Description:

Controls Parity

Command

Function

\P0

Parity even

\P1

Space Parity

\P2

Parity odd

\P3

Mark Parity

\P4

Last AT command (automatic)

PRE-LINK DATA BUFFER/FALLBACK CONTROL

Type:

Configuration

Format:

AT [cmds] \Cn [cmds]

Description:

Sets the handling of pre-link data buffer and fallback

Command

Function

\C0

Time-out and fallback, speed buffer, no data buffer

\C1

Time-out and fallback, speed buffer, buffer received data

\C2

Auto-reliable, fallback with fallback character speed buffer, no receive data buffer

\C3

Time-out and fallback, V.14, buffer received data

\C4

Time-out or fallback with fallback character, V.14, no data buffer

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports product code

I1

Reports ROM checksum

I2

Tests and reports ROM checksum

I3

Reports firmware revision level (A-)

I4

Displays settings of all S-registers

REQUEST STORED NUMBERS

Type:

Immediate

Format:

AT [cmds] &V [cmds]

Description:

Displays the list of stored numbers; only 4 can be stored.

RETRAIN - LINE SIGNAL QUALITY

Type:

Configuration

Format:

AT [cmds] %Qn [cmds]

Description:

Controls retrain function if poor line quality is detected

Command

Function

%Q0

Retrain disabled

%Q1

3 retraining attempts enabled, hang-up if not successful

%Q2

Retrain enabled until line quality is good

RETRANSMISSION COUNTER

Type:

Register

Format:

AT [cmds] S70=n [cmds]

Default:

100

Range:

Unidentified

Unit:

Unidentified

Description:

Counts the number of retries to make a connection

SIMULATED CONTROLLED CARRIER

Type:

Configuration

Format:

AT [cmds] &En [cmds]

Description:

Controls simulated controlled carrier (ITU-T V.13)

Command

Function

&E0

Transmit and receive path enabled

&E1

Transmit path enabled

&E2

Receive path enabled

SYNCHRONOUS - CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Description:

Sets the type of protocol used for synchronous operation

Command

Function

\M0

Normal synchronous mode enabled

\M1

V.13 synchronous mode enabled, simulated controlled carrier