MAXTECH CORPORATION
14400BPS TURBOMODEM INTERNAL
Card Type | Modem (asynchronous) |
Chip Set | Unidentified |
Maximum Data Rate | 14.4Kbps |
Data Bus | 8-bit ISA |
Data Modulation Protocol | Bell 103/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis |
Error Correction/Compression | MNP5, V.42, V.42bis |

CONNECTIONS | ||||||
Function | Label | Function | Label | |||
Line in | CN1 | Line out | CN2 | |||
SERIAL PORT ADDRESS | ||
Setting | SW1/1 | SW1/2 |
í COM1 (3F8h) | On | On |
COM2 (2F8h) | Off | On |
COM3 (3E8h) | On | Off |
COM4 (2E8h) | Off | Off |
INTERRUPT | ||||
Setting | SW1/3 | SW1/4 | SW1/5 | SW1/6 |
2 | On | Off | Off | Off |
3 | Off | On | Off | Off |
í 4 | Off | Off | On | Off |
5 | Off | Off | Off | On |
SUPPORTED COMMAND SET |
Basic AT Commands |
AT, ‘+++’, ‘Comma’, A/ |
A, B, D, E, H, L, M, O, Q, S, V, X, Y, Z |
&C, &D, &G, &L, &M, &P, &R, &S, &T, &V, &W, &X, &Y, &Z |
Extended AT Commands |
\A, \B, \C, \E, \G, \J, \K, \O, \Q, \U, \V, \X, \Y, \Z, %A, %C |
S Registers |
S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22, S23, S25, S26, S27 |
Note: See MHI Help file for full command documentation. |
Proprietary AT Command Set
ANSWER/ORIGINATE TONES | ||
Type: | Configuration | |
Format: | AT [cmds] &Kn [cmds] | |
Description: | Select the type of tone the modem will use to connect | |
Command | Function | |
í &K0 | Originate tones enabled | |
&K1 | Answer tones enabled | |
PROPRIETARY BIT MAPPED REGISTERS | ||
Register | Function | Default |
S28 | Callback security and power-up auto-dial | Unidentified |
CALLLBACK SECURITY | ||
Type: | Configuration | |
Format: | AT [cmds] %Sn [cmds] | |
Description: | Controls callback security | |
Command | Function | |
í %S0 | Callback security disabled | |
%S1 | Callback security enabled | |
CONNECT MODE | |
Type: | Configuration |
Format: | AT [cmds] \Nn [cmds] |
Description: | Controls the type of connection the modem will operate in |
Command | Function |
í \N0 | Normal mode enabled |
\N1 | Direct mode enabled |
\N2 | Reliable mode enabled |
\N3 | Auto-reliable mode enabled |
\N4 | V.42 reliable mode enabled |
\N5 | V.42 auto-reliable mode enabled |
\N6 | V.42/MNP/normal mode enabled |
ENQ/ACK | |
Type: | Configuration |
Format: | AT [cmds] \Hn [cmds] |
Description: | Allows modem to act on, then transmit XON/XOFF characters. |
Command | Function |
í \H0 | Disabled |
\H1 | ENQ/ACK enabled in host mode |
\H2 | ENQ/ACK enabled in terminal mode |
FACTORY DEFAULT PROFILE | ||
Type: | Configuration | |
Format: | AT [cmds] &Fn [cmds] | |
Description: | Sets values in active profile to values found in the default profile | |
Command | Function | |
í &F0 | Factory defaults enabled | |
&F1 | MNP5/V.42bis configuration with XOFF flow control enabled | |
&F2 | MNP5/V.42bis configuration with CTS flow control enabled | |
INACTIVITY TIMER | |
Type: | Configuration |
Format: | AT [cmds] \Tn [cmds] |
Default: | 0 |
Range: | 0-90 |
Unit: | 1 minute |
Description: | Sets the length of time that the modem does not receive information before it disconnects. |
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 internal memory |
I3 | Reports MNP/V.42/V.42bis identification |