MVP288I
| Card Type | Modem |
| Chip Set | Unidentified |
| Maximum Modem Rate | 28.8Kbps |
| Data Modulation Protocol | Bell 103A/212 ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 |
| Error Correction/Compression | MNP5, V.42, V.42bis |
| Data Bus | 8-bit ISA |
| Card Size | Half-length, half-height card |
CONNECTIONS |
|||
Function |
Label |
Function |
Label |
| Line in/out | CN1 |
Line in/out | CN2 |
SERIAL PORT ADDRESS |
|
Setting |
JP1 |
COM1 (3F8h) |
Pins 9 & 10, 11 & 12 closed |
COM2 (2F8h) |
Pins 9 & 10 closed |
COM3 (3E8h) |
Pins 11 & 12 closed |
COM4 (2E8h) |
Pins 9 & 10, 11 & 12 open |
INTERRUPT |
|
Setting |
JP1 |
2/9 |
Pins 1 & 2 closed |
3 |
Pins 5 & 6 closed |
4 |
Pins 7 & 8 closed |
5 |
Pins 3 & 4 closed |
SUPPORTED COMMAND SET |
Basic AT Commands |
| AT, ‘+++’, A/ |
| A, E, H, M, P, Q, T, V, W, X, Y, Z |
| &C, &F, &P, &T, &V, &W, &Y, &Z |
Extended AT Commands |
| \A, \B, \G, \K, \N |
| %C, %E, %L, %Q |
S Registers |
| Note: No information is available on S Registers |
Special Commands |
| +MS |
| Note: See MHI Help File for full command documentation. |
Proprietary AT Command Set
COMMUNICATION PROTOCOLS |
|
| Type: | Configuration |
| Format: | AT [cmds] Bn [cmds] |
| Description: | Selects the communication protocol for data calls |
| Note: | The B command allows the simultaneous selection of more than one suffix, enabling multiple protocols. |
Command |
Protocol |
B0 |
ITU-T V.22 at 1200bps, V.21 at 300bps |
B1 |
Bell 212A at 1200bps, 103J at 300bps |
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 |
DS=n |
Dial stored telephone number n |
DT |
Tone dialing enabled/Pulse dialing disabled |
DW |
Dialing resumed following dial tone detection |
D& |
Dial after AT&T "Bong" tone is received |
D^ |
Tone dialing enabled for current call - toggle |
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. |
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 |
Tests and reports ROM checksum |
I3 |
Reports ROM revision |
I4 |
Reports identifier string |
I5 |
Reports country code |
I6 |
Reports data connection information |
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 |
N1 |
Auto-mode enabled |
ON-LINE |
|
| Type: | Immediate |
| Format: | AT [cmds] O [cmds] |
| Description: | Forces modem to exit command mode and enter data mode |
| Note: The O command must be placed at the end of the command string. | |
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 | |
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 |
&G0 |
Guard tone disabled |
&G1 |
Guard tone disabled |
&G2 |
1800Hz guard tone enabled |
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 |
&K6 |
Unidirectional XON/XOFF flow control enabled |
OPERATIONAL MODE |
|
| Type: | Configuration |
| Format: | AT [cmds] &Qn [cmds] |
| Description: | Selects modem operational mode options |
Command |
Mode |
&Q0 |
Direct mode, disables data rate conversion, error correction and data compression |
&Q5 |
Error correction mode, enables locked DTE and data rate conversion |
&Q6 |
Normal mode, disables error correction and data compression |
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 |