3COM CORPORATION
US ROBOTICS COURIER V.EVERYTHING PC CARD MODEM
Card Type |
Modem (synchronous/asynchronous) |
Chip Set |
Unidentified |
Maximum Modem Rate |
33.6Kbps |
Maximum Fax Rate |
14.4Kbps |
Data Modulation Protocol |
Bell 103/212A ITU-T V.34, V.Fast class, V.32terbo, HST, V.32bis, V.32, V.22bis, V.23 |
Fax Modulation Protocol |
TIA/EIA-578, TIA/EIA-592, V.17, V.29, V.27ter, V.21 |
Error Correction/Compression |
V.42, MNP5, HST, V.42bis, V.54 |
Fax Class |
Class I & II |
Data Bus |
PCMCIA Type II |
54920
DIAGNOSTIC LED(S) | |||
LED |
Color |
Status |
Condition |
Power |
Unidentified |
On |
Power is on |
Power |
Unidentified |
Off |
Power is off |
Send |
Unidentified |
On |
Modem is transmitting data |
Send |
Unidentified |
Off |
Modem is not transmitting data |
Receive |
Unidentified |
On |
Modem is receiving data |
Receive |
Unidentified |
Off |
Modem is not receiving data |
On-line |
Unidentified |
On |
Modem connected |
On-line |
Unidentified |
Off |
Modem not connected |
SUPPORTED COMMAND SET |
Basic AT Commands |
AT, ‘+++’, A/ |
A, B, C, E, F, H, M, O, V |
&C, &G, &L, &W, &X, &Z |
S Registers |
S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S26 |
Note: See MHI Help File for full command documentation. |
Proprietary AT Command Set
ADDITIONASL RESULT CODES | |
Type: |
Configuration |
Format: |
AT [cmds] &An [cmds] |
Description: |
Controls the display of the additional result codes |
Command |
Function |
í &A0 |
Do not display ARQ result codes |
&A1 |
Display ARQ result codes |
&A2 |
Display ARQ result codes, HST, V.32, V.FC or V.34 modulation indicator |
&A3 |
Display ARQ result codes and error control indicator LAPM, HST, MNP, SYNC, or NONE |
BREAK HANDLING | |
Type: |
Configuration |
Format: |
AT [cmds] &Yn [cmds] |
Description: |
Controls the break handling |
Command |
Function |
í &Y0 |
Destructive, don’t send break |
&Y1 |
Destructive, expedited break sent |
&Y2 |
Nondestructive, expedited break sent |
&Y3 |
Nondestructive un-expedited break sent |
CONNECTION RATE | |
Type: |
Configuration |
Format: |
AT [cmds] &Nn [cmds] |
Description: |
Controls the connection rate |
Command |
Function |
í &N0 |
Variable rate |
&N1 |
300bps |
&N2 |
1200bps |
&N3 |
2400bps |
&N4 |
4800bps |
&N5 |
7200bps |
&N6 |
9600bps |
&N7 |
12Kbps |
&N8 |
14.4Kbps |
&N9 |
16.8Kbps |
&N10 |
19.2Kbps |
&N11 |
21.6Kbps |
&N12 |
24Kbps |
&N13 |
26.4Kbps |
&N14 |
28.8Kbps |
DATA COMPRESSION | |
Type: |
Configuration |
Format: |
AT [cmds] &Kn [cmds] |
Description: |
Controls the data compression |
Command |
Function |
&K0 |
Data compression disabled |
í &K1 |
Use auto enable/disable data compression |
&K2 |
Data compression always enabled |
&K3 |
Selective data compression |
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 |
&S2 |
On loss of carrier, modem sends a pulse DSR signal with CTS following CD |
&S3 |
On loss of carrier, modem sends a pulse DSR signal |
&S4 |
Modem sends DSR signal at the same time it sends CD signal |
DATA TERMINAL READY (DTR) | |
Type: |
Configuration |
Format: |
AT [cmds] &Dn [cmds] |
Description: |
Selects modem response to DTR |
Note: The action each variant of &D causes depends on the setting of &Q | |
Command |
Function |
í &D0 |
Modem does not respond to DTR |
&D1 |
Modem goes to command mode after DTR goes is off |
&D2 |
Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled. |
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 |
DP |
Pulse dialing enabled |
DR |
Answer mode enabled; originate mode disabled following handshake initiation. |
DS=n |
Dial stored telephone number n |
DT |
Tone dialing enabled/Pulse dialing disabled |
D@ |
Wait for an answer |
DW |
Dialing resumed following dial tone detection |
D, |
Dialing paused for amount of time specified in S8 register |
D"WXY" |
Optional method of denoting telephone numbers. Letters enclosed in quotes are interpreted as numbers according to the system found on a telephone keypad. |
D! |
Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook. |
D; |
Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command. |
D/ |
Pause for 125 milliseconds |
ERROR CONTROL | |
Type: |
Configuration |
Format: |
AT [cmds] &Mn [cmds] |
Description: |
Selects the error control protocol |
Command |
Mode |
í &M0 |
Normal mode, no error control |
&M1 |
Synchronous mode, without V.25bis |
&M2 |
Reserved |
&M3 |
Reserved |
&M4 |
Normal/ARQ mode, |
&M5 |
ARQ asynchronous mode |
&M6 |
V.25bis synchronous mode. |
&M7 |
V.25bis synchronous mode, using HDLC link protocol |
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 |
Load No Flow Control template settings |
&F1 |
Load Hardware Flow Control template settings |
&F2 |
Load Software Flow Control template settings |
&F3 |
Load HST cellular template settings |
HELP | |
Type: |
Configuration |
Format: |
AT [cmds] #$ [cmds] |
Description: |
Display the help pannels for the octothorpe (#) command set |
MODEM CLOCK | |
Type: |
Configuration |
Format: |
AT [cmds] Kn [cmds] |
Description: |
Controls the modem clock |
Command |
Function |
í K0 |
If on-line, display current call duration; if off-line, display the last call’s duration |
K1 |
Display the actual time (set clock using ATI3=HH:MM:SS K1) |
PHONE LINE SELECTION | |
Type: |
Configuration |
Format: |
AT [cmds] &Ln [cmds] |
Description: |
Selects normal/leased/cellular line |
Command |
Function |
&L0 |
Switched line (PSTN/Dial-up) |
í &L1 |
Leased line |
&L2 |
HST cellular line |
PULSE DIALING RATIO | |
Type: |
Configuration |
Format: |
AT [cmds] &Pn [cmds] |
Description: |
Selects pulse dial make/break ratio |
Command |
Function |
í &P0 |
39/61ms at 10pps (North America) |
&P1 |
33/67ms at 10pps (Europe) |
RECEIVE DATA FLOW CONTROL | |
Type: |
Configuration |
Format: |
AT [cmds] &In [cmds] |
Description: |
Controls the receive data flow control |
Command |
Jack Type |
í &I0 |
Disables XON/XOFF flow control |
&I1 |
Modem acts on typed XON/XOFF commands, Ctrl -S, or Ctrl -Q and passes them to remote device |
&I2 |
Modem acts on typed XON/XOFF commands but removes them from data stream |
&I3 |
Hewlett Packard host mode |
&I4 |
Hewlett Packard terminal mode |
&I5 |
Enable flow control on the phone link when the connection is not under error control |
REPEAT LAST COMMAND | |
Type: |
Immediate |
Format: |
AT [cmds] A> [cmds] |
Description: |
Repeat last command until canceled by pressing any key. |
REPORT INFORMATION | |
Type: |
Immediate |
Format: |
AT [cmds] In [cmds] |
Description: |
Displays information requested |
Command |
Function |
I0 |
Reports product code |
I1 |
Reports results of ROM checksum |
I2 |
Reports results of RAM test |
I3 |
Reports the duration of the last call |
I4 |
Reports the current modem settings |
I5 |
Reports the settings stored in NVRAM |
I6 |
Reports statistics for the last call |
I7 |
Reports product configuration |
I8 |
Reserved |
I9 |
Reserved |
I10 |
Reports dial security account status information |
I11 |
Reserved |
RESULT CODES | |
Type: |
Configuration |
Format: |
AT [cmds] Qn [cmds] |
Description: |
Enables modem to send result codes to the DTE |
Command |
Function |
í Q0 |
Result code sending enabled |
Q1 |
Result code sending disabled |
Q2 |
Suppress result codes when answering |
RTS/CTS | |
Type: |
Configuration |
Format: |
AT [cmds] &Rn [cmds] |
Description: |
Selects RTS/CTS options |
Command |
Function |
í &R0 |
CTS follows RTS in data mode; RTS is ignored in command mode. |
&R1 |
CTS forced high, RTS is ignored. |
&R2 |
Enable hardware flow control of received data |
SELECT CALL PROGRESS RESULT CODES | |
Type: |
Configuration |
Format: |
AT [cmds] Xn [cmds] |
Description: |
Enables selection of tone detection and associated result code format options |
Command |
Function |
X0 |
Busy and dial tone detection disabled; result codes 0 - 4 enabled. |
X1 |
Busy and dial tone detection disabled; result codes 0 - 5 & 10 enabled. |
X2 |
Busy tone detection disabled, dial tone detection enabled; result codes 0 - 6 & 10 enabled. |
X3 |
Busy tone detection enabled, dial tone detection disabled; result codes 0 - 5, 7 & 10 enabled. |
í X4 |
Busy and dial tone detection enabled; result codes 0 - 7 & 10 enabled. |
X5 |
Busy tone detection disabled, dial tone detection disabled, all result codes enabled |
X6 |
All result codes enabled |
X7 |
Voice detection disable, all result codes enabled |
SERIAL PORT RATE | |
Type: |
Configuration |
Format: |
AT [cmds] &Bn [cmds] |
Description: |
Controls the serial port rate |
Command |
Function |
í &B0 |
Variable serial port rate |
&B1 |
Fixed serial port rate |
&B2 |
In answer mode use fixed rate for ARQ calls and variable rate for non ARQ calls. |
SPEAKER VOLUME | |
Type: |
Configuration |
Format: |
AT [cmds] Ln [cmds] |
Description: |
Controls speaker volume |
Command |
Function |
L0 |
Low volume setting |
L1 |
Low volume setting |
í L2 |
Medium volume setting |
L3 |
Highest volume setting |
TEST MODES | |
Type: |
Immediate |
Format: |
AT [cmds] &Tn |
Description: |
Selects test options |
Command |
Function |
&T0 |
End current test |
&T1 |
Begin local analog loopback test |
&T3 |
Begin local digital loopback |
&T4 |
Grant remote digital loopback request |
&T5 |
Deny remote digital loopback request |
&T6 |
Begin remote digital loopback |
&T7 |
Begin remote digital loopback and self-test |
&T8 |
Begin analog loopback with self test and error detection |
TRANSMIT DATA FLOW CONTROL | |
Type: |
Configuration |
Format: |
AT [cmds] &Hn [cmds] |
Description: |
Controls the transmit data flow |
Command |
Function |
í &H0 |
Flow control disabled |
&H1 |
Hardware flow control enable |
&H2 |
Software flow control enable |
&H3 |
Both hardware and software flow control enabled |
WRITE TO TEMPLATE | |
Type: |
Configuration |
Format: |
AT [cmds] &Wn [cmds] |
Description: |
Writes to desired template |
Command |
Function |
í &W0 |
Write to NVRAM template 0 |
&W1 |
Write to NVRAM template 1 |
Extended AT Commands
ASSIGN PASSWORD | |
Type: |
Immediate |
Format: |
AT [cmds] %V=PWn [cmds] |
Description: |
Assign the password in account n in security account |
CLOCK SPEED | |
Type: |
Immediate |
Format: |
AT [cmds] %N [cmds] |
Description: |
Sets the V.25bis clock speed |
Command |
Function |
%N0 |
Reserved |
%N1 |
Reserved |
%N2 |
1200bps |
%N3 |
2400bps |
%N4 |
4800bps |
%N5 |
7200bps |
%N6 |
9600bps |
%N7 |
12Kbps |
%N8 |
14.4Kbps |
%N9 |
16.8Kbps |
%N10 |
19.2Kbps |
ERASE SECURITY SETTINGS | |
Type: |
Configuration |
Format: |
AT [cmds] %En [cmds] |
Description: |
Erases selected security settings |
Command |
Function |
%E1 |
Erase local access password |
%E2 |
Erase autopass password |
%E3 |
Erase passwords in accounts 0-9 |
%E4 |
Erase phone numbers in accounts 0-9 |
%E5 |
Disable account, dialback, and new number fields in accouns 0-9 |
LOCAL ACCESS PASSWORD | |
Type: |
Configuration |
Format: |
AT [cmds] %Ln [cmds] |
Description: |
Set local access password |
PASSWORD SECURITY | |
Type: |
Immediate |
Format: |
AT [cmds] %P [cmds] |
Description: |
Disable password security |
REMOTE CONFIGURATION | |
Type: |
Configuration |
Format: |
AT [cmds] %Cn [cmds] |
Description: |
Controls the remote configuration |
Command |
Function |
%C0 |
Defer configuration changes until the call is ended |
%C1 |
Cancel configuration changes and restore the original configuration |
%C2 |
Force configuration changes to take effect immediately |
REMOTE CONFIGURATION | |
Type: |
Configuration |
Format: |
AT [cmds] %Fn [cmds] |
Description: |
Configure another device’s data remotely |
Command |
Function |
%F0 |
No parity, 8 data bits |
%F1 |
Mark parity, 7 data bits |
%F2 |
Odd parity, 7 data bits |
%F3 |
Even parity, 7 data bits |
SECURITY ACCOUNTS | |
Type: |
Configuration |
Format: |
AT [cmds] %An [cmds] |
Description: |
Create and configure security accounts |
SECURITY ACCOUNTS | |
Type: |
Configuration |
Format: |
AT [cmds] %Sn [cmds] |
Description: |
Access security accounts |
SERIAL PORT RATE | |
Type: |
Configuration |
Format: |
AT [cmds] %Bn [cmds] |
Description: |
Remotely configure a modem’s serial port rate |
Command |
Function |
%B0 |
110bps |
%B1 |
300bps |
%B2 |
600bps |
%B3 |
1200bps |
%B4 |
2400bps |
%B5 |
4800bps |
%B6 |
9600bps |
%B7 |
19200bps |
%B8 |
38400bps |
%B9 |
57600bps |
%B10 |
115200bps |
TONE FREQUENCIES | |
Type: |
Configuration |
Format: |
AT [cmds] %Tn [cmds] |
Description: |
Enalbes recognition of the tone frequencies |