AT&T PARADYNE
DATAPORT PCX MODEM (EXTERNAL)
Card Type | Modem |
Chip Set | Unidentified |
I/O Options | Serial ports, power jack, line in, line out |
Maximum Modem Rate | 57.6Kbps |
Maximum Fax Rate | 14.4Kbps |
Data Modulation Protocol | Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis |
Fax Modulation Protocol | ITU-T V.17, V.27ter, V.29 |
Error Correction/Compression | MNP5, V.42, V.42bis |
Fax Class | Unidentified |
Data Bus | External |

CONNECTIONS | ||||||
Function | Label | Function | Label | |||
Line out via RJ-11 | CN1 | Serial port | CN3 | |||
Line in via RJ-11 | CN2 | Power jack | CN4 | |||
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
TST | Unidentified | On | Modem is executing a test |
TST | Unidentified | Off | Modem is not executing a test |
CD | Unidentified | On | Carrier signal detected, connection established |
CD | Unidentified | Off | Carrier signal not detected |
OH | Unidentified | On | Modem is on-hook |
OH | Unidentified | Off | Modem is off-hook |
RD | Unidentified | On | Modem is receiving data |
RD | Unidentified | Off | Modem is not receiving data |
SD | Unidentified | On | Modem transmitting data |
SD | Unidentified | Off | Modem not transmitting data |
TR | Unidentified | On | DTR signal is high |
TR | Unidentified | Off | DTR signal is low |
MR | Unidentified | On | Power is on |
MR | Unidentified | Off | Power is off |
SUPPORTED COMMAND SET |
Basic AT Commands |
AT, ‘+++’, ‘comma’, A/ |
A, B, E, H, L, M, O, P, Q, S, T, V, W, X, Y, Z |
&C, &D, &K, &M, &Q, &R, &T, &V, &W, &X, &Y, &Z |
Extended AT Commands |
\K |
%E, %L, %Q |
S Registers |
S0, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S26, S27, S37, S95 |
Note: See MHI Help File for full command documentation. |
Proprietary AT Command Set
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, | 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 quiet 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. |
D& | Wait for credit card dialing enabled. Waits for prompt tone for amount of time specified by the S7 command |
SELECTS LINE MODULATION | |
Type: | Configuration |
Format: | AT [cmds] Fn [cmds] |
Description: | Controls line modulation and VF rate |
Command | Function |
í F0 | Selects auto-detect mode. All supported speeds and modulations are available for selection by the remote modem. |
F1 | Selects V.21 or Bell 103J (300bps) according to the setting Bn. |
F2 | Not supported |
F3 | Selects V.23 |
F4 | Selects V.22 or Bell 212A (1200bps) according to the setting of Bn |
F5 | Selects V.22bis (2400bps) |
F6 | Selects V.32bis or V.32 at 4800bps |
F7 | Selects V.32bis at 7200bps |
F8 | Selects V.32bis or V.32 at 9600bps |
F9 | Selects V.32bis at 12,00bps |
F10 | Selects V.32bis at 14,400 bps |
REPORT INFORMATION | |
Type: | Immediate |
Format: | AT [cmds] In [cmds] |
Description: | Displays information requested |
Command | Function |
I0 | Reports product speed |
I1 | Reports ROM checksum |
I2 | Tests and reports ROM checksum |
I3 | Reports firmware revision level, model, and interface |
I4 | Reports firmware revision code |
I5 | Reports country code |
I6 | Reports data pump model and revision code |
SPEAKER MODE | |
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 |
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 | Loads factory 0 configuration |
&F1 | Loads factory 1 configuration |
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 |
DATA SET READY (DSR) | |
Type: | Configuration |
Format: | AT [cmds] &Sn [cmds] |
Description: | Selects DSR options |
Command | Function |
í &S0 | DSR forced high |
&S1 | DSR high only while modem is connected |
CONNECT MODE | |
Type: | Configuration |
Format: | AT [cmds] \Nn [cmds] |
Description: | Controls the type of connection the modem will operate in |
Command | Function |
\N0 | Buffer mode enabled |
\N1 | Direct mode enabled |
Special Commands
FAX/DATA MODE QUERY | |
Type: | Configuration |
Format: | AT [cmds] +FCLASS?[cmds] |
Description: | Displays the fax or data mode expressed as a number. Data mode (0) Fax class (1) |
FAX/DATA MODE SET | |
Type: | Configuration |
Format: | AT [cmds] +FCLASS=n [cmds] |
Description: | Determines whether the modem operates in fax or data mode |
Command | Function |
FCLASS0 | Data mode enabled |
FCLASS1 | Fax class 1 enabled |
RPI TOGGLE | |
Type: | Configuration |
Format: | AT [cmds] +Hn [cmds] |
Description: | Determines whether Rockwell Protocol Interface processing is used. |
Command | Function |
+H, +H0 | RPI disabled |
+H11 | RPI enabled |