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 |
3COM-CORPORATION-Modem-synchronous-asynchronous-US-122
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 |