MAXTECH CORPORATION
14400BPS TURBOMODEM EXTERNAL
Card Type | Modem (synchronous/asynchronous) |
Chip Set | Unidentified |
Maximum Data Rate | 14.4Kbps |
Data Bus | External |
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 | DC power | CN4 | |||
Line out | CN2 | Power switch | SW1 | |||
RS-232/422 | CN3 | |||||
USER CONFIGURABLE SETTINGS | ||
Setting | Label | Position |
í Smart mode | JP1 | Pins 2 & 3 closed |
Dumb mode | JP1 | Pins 1 & 2 closed |
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
TST | Red | On | Normal operation or no error detected |
TST | Red | Off | No connection established |
TST | Red | Blinking | Error correction activated |
HS | Red | On | Modem is operating at 4800bps or faster |
HS | Red | Off | Modem is operating at slower than 4800bps |
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 |
RD | Red | On | Modem is receiving data |
RD | Red | Off | Modem is not receiving data |
SD | Red | On | Modem is transmitting data |
SD | Red | Off | Modem is not transmitting data |
TR | Red | On | DTR signal is high |
TR | Red | Off | DTR signal is low |
MR | Red | On | Power is on |
MR | Red | Off | Power is off |
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
AUTO-DIAL ON POWER-UP | ||
Type: | Configuration | |
Format: | AT [cmds] %Pn [cmds] | |
Description: | Controls how the modem reacts when powered up. | |
Command | Function | |
%P0 | Disabled | |
%P1 | Telephone number at memory location 0 dialed after modem is powered -up, AT%P1&L0 are set to enable this feature. | |
See: MAXTECH CORPORATION, 14400BPS TURBOMODEM INTERNAL document for a full command summary.