SHARK MULTIMEDIA
LEOPARD 56K
Card Type | Modem (asynchronous) |
Chip Set | Rockwell |
I/O Options | Line in, line out, microphone in, speaker out |
Maximum Modem Rate | 56Kbps |
Maximum Fax Rate | 14.4Kbps |
Data Modulation Protocol | Bell 103/212A ITU-T V.34, V.FC, V.32bis, V.32, V.22bis, V.22, V.23, V.21 |
Fax Modulation Protocol | ITU-T V.17, V.21CH2, V.27ter, V.29, Unidentified |
Error Correction/Compression | MNP5, V.42bis |
Fax Class | Class I & II |
Data Bus | 16-bit ISA |
Card Size | Half-length, half-height card |

CONNECTIONS | ||||||
Function | Label | Function | Label | |||
Line out | CN1 | Microphone | CN3 | |||
Line in | CN2 | Speaker out | CN4 | |||
SUPPORTED COMMAND SET |
Basic AT Commands |
AT, A/ |
A, B, D, E, H, M, O, P, Q, T, V, W, X, Y, Z |
&D, &M, &P, &Q, &R, &T, &W, &X, &Y, &Z |
Extended AT Commands |
\A, \B, \K, \N, |
%C, %E, %L, %Q |
S Registers |
S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22, S23, S24, S25, S26, |
S27, S28, S29, S30, S38, S39, S40, S46, S48, S82, S91, S92, S95 |
Special Commands |
-K, +MS |
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: Disabling the transmit carrier puts the modem in receive-only mode | |
Command | Function |
í C1 | Return OK message |
ECHOPLEX | |
Type: | Configuration |
Format: | AT [cmds] Fn [cmds] |
Description: | Selects whether commands sent while in data mode are echoed |
Note: This command is only supported on older modems | |
Command | Function |
F0 | Auto detect mode |
í F1 | V.21 or Bell 103 |
F3 | V.23 line modulation |
F4 | V.22 or Bell 212A 1200bps line speed |
F5 | V.22bis line modulation |
F6 | V.32bis or V.32 4800 line modulation |
F7 | V.32bis 7200 line modulation |
F8 | V.32bis or V.32 9600 line modulation |
F9 | V.32bis 12000 line modulation |
F10 | V.32bis 14400 line modulation |
REPORT INFORMATION | |
Type: | Immediate |
Format: | AT [cmds] In [cmds] |
Description: | Displays information requested |
Command | Function |
I0 | Reports modem model and speed |
I1 | Reports ROM checksum |
I2 | Report OK |
I3 | Report firmware revision, model, and interface type |
I4 | Report response programmed by OEM |
I5 | Report the country code parameter |
I6 | Report modem data pump model and code revision |
I7 | Report DAA code |
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 |
AUTO-MODE DETECTION | |
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 | Auto-mode detection disabled |
í N1 | Auto-mode detection enabled |
RLSD | |
Type: | Configuration |
Format: | AT [cmds] &Cn [cmds] |
Description: | Selects whether the RLSD option is enabled or disabled |
Command | Function |
í &C0 | Force RLSD active regardless of the carrier state |
&C1 | Allow RLSD to follow the carrier state |
FACTORY DEFAULT PROFILE | |
Type: | Configuration |
Format: | AT [cmds] &F [cmds] |
Description: | Sets values in active profile to values found in the default profile |
Command | Function |
í &F0 | Restore factory configuration 0 |
&F1 | Restore factory configuration 1 |
GUARD TONE | |
Type: | Configuration |
Format: | AT [cmds] &Gn [cmds] |
Description: | Commands the modem to transmit a guard tone in V.22/V.22bis |
Note: Used primarily for international data transmission | |
Command | Function |
í &G0 | Guard tone disabled |
&G1 | Guard tone disabled |
&G2 | 1800Hz guard tone enabled |
JACK TYPE | |
Type: | Configuration |
Format: | AT [cmds] &Jn [cmds] |
Description: | Included for compatibility, performs no function. |
FLOW CONTROL | |
Type: | Configuration |
Format: | AT [cmds] &Kn [cmds] |
Description: | Enables flow control options |
Command | Function |
&K0 | Flow control disabled |
í &K3 | RTS/CTS flow control enabled |
&K4 | XON/XOFF flow control enabled |
&K5 | Transparent XON/XOFF flow control enabled |
&K6 | RTS/CTS and XON/XOFF flow control enabled |
LINE TYPE | |
Type: | Configuration |
Format: | AT [cmds] &Ln [cmds] |
Description: | Selects line type |
Command | Line Type |
&L0 | Switched line (PSTN/Dial-up) |
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 |
CONFIGURATION PROFILES | |
Type: | Immediate |
Format: | AT [cmds] &V [cmds] |
Description: | Displays active and stored configuration profiles |
Command | Function |
&V1 | Displays the connection statistics |
Extended AT Commands
CONNECT MESSAGE | |
Type: | Configuration |
Format: | AT [cmds] \Vn [cmds] |
Description: | Selects extended result codes |
Command | Function |
\V0 | Connect messages are controlled by the command settings X, W, and S95 |
\V1 | Connect messages are displayed in the single line format |
AUTO-RELIABLE FALLBACK CHARACTER | |
Type: | Configuration |
Format: | AT [cmds] %An [cmds] |
Default: | 19 |
Range: | 0-127 |
Unit: | ASCII |
Description: | Sets the character used as the auto-reliable fallback character |
Command | Function |
%A0 | Disable |
PLUG AND PLAY SERIAL NUMBER | |
Type: | Immediate |
Format: | AT [cmds] %7 [cmds] |
Description: | Displays the Plug and Play serial number |
PLUG AND PLAY VENDOR ID | |
Type: | Immediate |
Format: | AT [cmds] %8 [cmds] |
Description: | Displays the Plug and Play vendor ID and product number |
MNP10 - FALLBACK | |
Type: | Configuration |
Format: | AT [cmds] -SECn [cmds] |
Description: | Allows MNP10 to fall back to speeds slower than 4800bps |
Command | Function |
-SEC0 | MNP 10-EC disabled |
-SEC1 | MNP 10-EC enabled and set transmit level <tx level> 0 to 30 |
DISTINCTIVE RING | |
Type: | Configuration |
Format: | AT [cmds] -SDR=n [cmds] |
Description: | Controls the distinctive ring type |
Command | Function |
-SDR=0 | Disable distinctive ring |
-SDR=1 | Ring type 1 |
-SDR=2 | Ring type 2 |
-SDR=3 | Ring type 1 and 2 |
-SDR=4 | Ring type 3 |
-SDR=5 | Ring type 1 and 3 |
-SDR=6 | Ring type 2 and 3 |
-SDR=7 | Ring type 1, 2, and 3 |
RPI MODE | |
Type: | Configuration |
Format: | AT [cmds] +H [cmds] |
Description: | Sets the flash memory download speed |
Command | Function |
+H0 | RPI/Video Ready Mode disabled |
+H1 | RPI enabled and DTE speed set to 19200kps |
+H2 | RPI enabled and DTE speed set to 38400kps |
+H3 | RPI enabled and DTE speed set to 57600kps |
+H11 | RPI+ mode enabled |
+H16 | Video Ready Mode enabled |
BLACKLISTED NUMBERS | |
Type: | Configuration |
Format: | AT [cmds] *B [cmds] |
Description: | Displays the list of permanently blacklisted numbers |
DELAYED NUMBERS | |
Type: | Configuration |
Format: | AT [cmds] *D [cmds] |
Description: | Displays the list of delayed numbers |
COUNTRY | |
Type: | Configuration |
Format: | AT [cmds] *NCn [cmds] |
Description: | Changes the country to one of eight listed in NVRAM |
S(status) -REGISTERS
BIT-MAPPED REGISTER S19 | |
Format | AT [cmds] S19=n [cmds] |
Default: | 0 |
Range: | Unidentified |
Description: | AutoSync options |
BIT-MAPPED REGISTER S20 | |
Format | AT [cmds] S20=n [cmds] |
Default: | 0 |
Range: | 0-255 |
Unit: | Bit-mapped |
Description: | AutoSync HDLC address or BSC Sync character |
BIT-MAPPED REGISTER S31 | |||
Format: | AT [cmds] S31=n [cmds] | ||
Default: | Unidentified | ||
Range: | 0-10 | ||
Description: | Select automode and extended result code format. | ||
Bit | Value | Function | |
0 | 0 | Not used | |
1 | 0 1 | Auto-mode detection disabled In originate mode, handshake begins at line speed designated by the S37 register. Modem can shift to a slower speed if necessary. In answer mode, handshake attempted with the following protocols in order - V.FC, V.32bis, V.32, V.22bis, V.22 or Bell 212, V.21, and Bell 103 | |
2-3 | 0 1 | Auto line speed detection (Nn) disabled Auto line speed detection (Nn) enabled | |
4-5 | 0 1 2 | Caller ID disabled Short Caller ID enabled Long Caller ID enabled | |
6-7 | 11b | Reserved | |
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 | Attempt automode connection. If N0 is active, connection is attempted at the most recently sensed DTE speed. If N1 is active, connection is attempted at the highest possible speed. |
S37=1-3 | Attempt to connect at 300bps |
S37=4 | Reserved |
S37=5 | Attempt to connect at 1200bps |
S37=6 | Attempt to connect at 2400bps |
S37=7 | Attempt to connect at V.23 |
S37=8 | Attempt to connect at 4800bps |
S37=9 | Attempt to connect at 9600bps |
S37=10 | Attempt to connect at 12000bps |
S37=11 | Attempt to connect at 14400bps |
S37=12 | Attempt to connect at 7200bps |
BIT-MAPPED REGISTER S41 | ||
Format | AT [cmds] S41=n [cmds] | |
Default: | Unidentified | |
Range: | 0-31 | |
Unit: | Bit-mapped | |
Description: | Selects compression, auto-retrain, flow control, and MNP mode. | |
Bit | Value | Function |
0-1 | 0 1 2 3 | Disabled MNP5 V.42bis MNP5 and V.42bis |
2,6 | 0,0 0,1 1,0 | Retrain and fallback/fall forward disabled Retrain enabled Fallback/fall forward enabled |
3 | Reserved | |
4-5 | Reserved | |
7 | Reserved | |
BIT-MAPPED REGISTER S86 | |
Format | AT [cmds] S86=n [cmds] |
Default: | Unidentified |
Range: | 0, 4, 5, 9, 12, 13, 14 |
Unit: | Bit-mapped |
Description: | Records the first event that contributes to a NO CARRIER message. |
Command | Function |
S86=0 | Normal disconnect, no error occurred |
S86=4 | Loss of carrier |
S86=5 | V.42 negotiation failed to detect an error-correction modem at the other end |
S86=9 | The modems could not find a common protocol |
S86=12 | Normal disconnect initiated by the remote modem |
S86=13 | Remote modem does not respond after 10 re-transmissions of the same message |
S86=14 | Protocol violation |