CARDINAL TECHNOLOGIES, INC.

144V32Bis/MVP144IF (ROCKWELL) (VER.2)

Card Type Modem
Chip Set Unidentified
Maximum Modem Rate 14.4Kbps
Data Modulation Protocol Bell 103A/212A
ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis
Error Correction/Compression MNP5, V.42, V.42bis
Data Bus 8-bit ISA
Card Size Three-quarter length, full-height


CONNECTIONS

Function

Label

Function

Label

Line in/out

CN1

Line in/out

CN2


SERIAL PORT ADDRESS

Setting

SW1/1

SW1/2

SW1/3

SW1/4

COM1 (3F8h)

On

On

On

Off

COM2 (2F8h)

Off

On

Off

On

COM3 (3E8h)

On

Off

On

Off

COM4 (2E8h)

Off

Off

Off

On


SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, A/
A, B, E, H, M, O, V, W, X, Y, Z
&C, &F, &G, &L, &T, &V, &W, &Y

Extended AT Commands

\A, \G, \K, \L, \O, \U, \Y, \Z
%L, %Q

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22, S23, S25, S26
S27, S30, S36, S40, S41, S38, S91, S95
Note: See MHI Help File for full command documentation.


 

Proprietary AT Command Set

AUTO DATA/SPEED ADJUST

Type: Configuration
Format: AT [cmds] Nn [cmds]
Description: Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.

Command

Function

N0

Sets connect speed to match value of S37

N1

Enables auto data standard and speed is set to match remote modem


COMMUNICATIONS MODE

Type: Configuration
Format: AT [cmds] &Mn [cmds]
Description: Selects communications mode

Command

Mode

&M0

Asynchronous mode

&M1

Transmit compression mode

&M2

Receive compression mode

&M3

Enable two-way compression


COMMUNICATIONS MODE

Type: Configuration
Format: AT [cmds] &Qn [cmds]
Description: Selects communications mode options

Command

Mode

&Q0

Asynchronous mode, serial port speed follows connect speed.

&Q4

OK result code issued by modem

&Q5

Error correction mode

&Q6

Buffered asynchronous mode

&Q8

MNP mode

&Q9

V.42/V.42bis mode


DATA SET READY (DSR)

Type: Configuration
Format: AT [cmds] &Sn [cmds]
Description: Selects DSR options

Command

Function

&S0

DSR forced high

&S1

DSR high only while modem is handshaking or connected


DATA TERMINAL READY (DTR)

Type: Configuration
Format: AT [cmds] &Dn [cmds]
Description: Selects modem response to DTR

Command

Function

&D0

Modem does not respond to DTR

&D1

Modem goes to command mode on DTR toggle

&D2

Modem goes to command mode and disconnects (hangs up) on DTR toggle;

Auto-Answer is disabled on low DTR.

&D3

Modem is initialized on DTR toggle


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

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.

D;

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


FLOW CONTROL

Type: Configuration
Format: AT [cmds] &Kn [cmds]
Description: Enables flow control options

Command

Function

&K0

Flow control disabled

&K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled

&K5

Transparent XON/XOFF flow control enabled


PULSE DIALING RATIO

Type: Configuration
Format: AT [cmds] &Pn [cmds]
Description: Selects pulse dial make/break ratio

Command

Function

&P0

39/61ms at 10pps (North America)

&P1

33/67ms at 10pps (Europe)

&P2

39/61ms at 20pps


REPORT INFORMATION

Type: Immediate
Format: AT [cmds] In [cmds]
Description: Displays information requested

Command

Function

I0

Reports modem code

I1

Reports ROM checksum

I2

Tests and reports ROM checksum

I3

Reports version information


RESULT CODES

Type: Configuration
Format: AT [cmds] Qn [cmds]
Description: Enables modem to send result codes to the DTE

Command

Function

Q0

Result code sending enabled

Q1

Result code sending disabled

Q2

Result code sending enabled only while originating call


SPEAKER VOLUME

Type: Configuration
Format: AT [cmds] Ln [cmds]
Description: Controls speaker volume

Command

Function

L0

Low volume setting

L1

Low volume setting

L2

Medium volume setting

L3

Highest volume setting


STORE TELEPHONE NUMBER

Type: Configuration
Format: AT [cmds] &Zn=(phone # & modifiers)
Description: Writes selected telephone numbers into the non-volatile memory at location n
Note: The characters described in the D command are valid for use in the &Z command; telephone numbers and modifiers can include up to 30 characters.


Extended AT Command

AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD

Type: Configuration
Format: AT [cmds] %En [cmds]
Description: Controls auto-retrain mode and fallback/fall-forward

Command

Function

%E0

Auto-retrain disabled

%E1

Auto-retrain enabled


BREAK SEND

Type: Configuration
Format: AT [cmds] \Bn [cmds]
Range: 3-9
Unit: .1 second
Description: Sends break to modem


BTLZ - CLEAR DICTIONARY

Type: Configuration
Format: AT [cmds] %P
Description: Clears BTLZ compression algorithm dictionary


BTLZ COMPRESSION MODE

Type: Configuration
Format: AT [cmds] %Mn [cmds]
Description: Controls compression mode for BTLZ compression algorithm

Command

Function

%M0

Disable compression

%M1

Enable transmit compression only

%M2

Enable receive compression only

%M3

Enable two-way compression


BTLZ DICTIONARY SIZE

Type: Configuration
Format: AT [cmds] %Dn [cmds]
Description: Sets dictionary size for BTLZ compression algorithm

Command

Function

%D0

512 bytes

%D1

1024 bytes

%D2

2048 bytes

%D3

4096 bytes (one-way)


BTLZ MAX STRING LENGTH

Type: Configuration
Format: AT [cmds] %Sn [cmds]
Range: 6-250
Unit: ASCII
Description: Controls length of BTLZ compression algorithm string


COMPRESSION

Type: Configuration
Format: AT [cmds] %Cn [cmds]
Description: Selects data compression

Command

Function

%C0

Data compression disabled

%C1

Data compression 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

\N3

Auto-reliable mode enabled


INACTIVITY TIMER

Type: Configuration
Format: AT [cmds] \Tn [cmds]
Range: 0-42
Unit: 1 second
Description: Sets the length of time that the modem does not receive information before it disconnects.


S(status) Registers

BREAK OPTIONS

Type: Register
Format AT [cmds] S82=n [cmds]
Description: Sets the method for break transmission during error-control and ASB connections.

Command

Function

S82=3

Expedited signaling, immediately send timed break

S82=7

Destructive signaling, buffers cleared, immediately send timed break

S82=128

In-sequence signaling, timed break sent in sequence with transmitted data


CONNECTION FAILURE CODES

Type: Register
Format AT [cmds] S86? [cmds]
Description: Reports codes which correspond to the possible causes of a connection failure

Value

Meaning

0

Normal hang up

4

Carrier signal lost

5

No error-control detected for remote modem during feature negotiation

9

No common protocol found

12

No failure - remote modem disconnected normally

13

Remote modem failed to respond after 10 re-transmissions same message

14

Violation of negotiated protocol caused failure


DCE LINE SPEED

Type: Register
Format AT [cmds] S37=n [cmds]
Description: Sets the maximum allowable data exchange rate attempted during handshake process.

Command

Function

S37=0

Speed of last connection

S37=1

75bps

S37=2

110bps

S37=3

300bps

S37=4

600bps

S37=5

1200bps

S37=6

2400bps

S37=7

4800bps

S37=8

7200bps

S37=9

9600bps

S37=10

12.0Kbps

S37=11

14.4Kbps


ERROR CORRECTION/COMPRESSION

Type: Register
Format: AT [cmds] S46=n [cmds]
Description: Selects active error correction and compression protocols

Command

Function

S46=136

LAP-M only, no compression

S46=138

LAP-M with V.42bis data compression


FEATURE NEGOTIATION OPTIONS

Type: Register
Format: AT [cmds] S48=n [cmds]
Description: Selects active error correction and compression protocols

Command

Function

S48=0

Detection negotiation disabled, XID negotiation disabled, enable LAPM

S48=7

Detection negotiation and XID negotiation enabled

S48=128

Fall-back to options set in S36