U.S. ROBOTICS, INC.
COURIER V.32/PC
|
Card Type |
Modem (asynchronous) |
|
Chip Set |
U.S. Robotics |
|
Maximum Data Rate |
14.4Kbps |
|
Data Bus |
Unidentified |
|
Data Modulation Protocol |
Unidentified |
|
Error Correction/Compression |
Unidentified |
V1985
|
USER CONFIGURABLE SETTINGS | ||
|
Setting |
Label |
Position |
|
í DTR normal |
SW1/1 |
Off |
|
DTR forced high |
SW1/1 |
On |
|
í Verbal result codes |
SW1/2 |
Off |
|
Numeric result codes |
SW1/2 |
On |
|
í Enable result codes displayed |
SW1/3 |
On |
|
Disable result codes displayed |
SW1/3 |
Off |
|
í Local echo enabled |
SW1/4 |
Off |
|
Local echo disabled |
SW1/4 |
On |
|
í Auto answer disabled |
SW1/5 |
On |
|
Auto answer enabled |
SW1/5 |
Off |
|
í CD signal normal |
SW1/6 |
Off |
|
CD signal forced high |
SW1/6 |
On |
|
í Display result codes in originate and answer mode |
SW1/7 |
Off |
|
Display result codes in originate mode only |
SW1/7 |
On |
|
í Smart mode enabled |
SW1/8 |
On |
|
Dumb mode enabled |
SW1/8 |
Off |
|
í Normal operation enabled |
SW1/9 |
On |
|
Escape sequence enabled |
SW1/9 |
Off |
|
í Restore NVRAM defaults |
SW1/10 |
Off |
|
Restore factory defaults |
SW1/10 |
On |
Proprietary AT Command Set
|
ABORT | |
|
Type: |
Immediate |
|
Format: |
Any key |
|
Description: |
Aborts answering/originating a call; modem hangs up. |
|
ANSWER | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] A |
|
Description: |
Enables manual answer mode, the modem goes off-hook; pressing any key will abort. |
|
ANSWER SEQUENCE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] Bn [cmds] |
|
Description: |
Selects the answer sequence the modem will use |
|
Command |
Function |
|
í B0 |
V.32 mode/ITU-T answer sequence enabled |
|
B1 |
HST mode/Bell answer tone enabled |
|
ATTENTION | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] |
|
Description: |
Tells the modem that a command follows or use alone to test OK result code |
|
BIT-MAPPED REGISTER S13 | ||
|
Format |
AT [cmds] S13=n [cmds] | |
|
Default: |
0 | |
|
Range: |
0-255 | |
|
Unit: |
Bit-mapped | |
|
Description: |
Controls DTR reset, DTR dialing, reset dialing, HST modulation, and MNP3. | |
|
Bit |
Value |
Function |
|
0 |
í 01 |
DTR normal Reset on low DTR |
|
1 |
í 01 |
Normal auto answer operation When ring is received, enter originate and listen for answer tone |
|
2 |
í 01 |
Pause 250msec. Before displaying result codes Immediate result code display |
|
3 |
í 01 |
DTR dialing disabled DTR dialing enabled |
|
4 |
í 01 |
Reset dialing disabled Reset dialing enabled |
|
5 |
í 01 |
HST modulation enabled HST modulation disabled |
|
6 |
í 01 |
MNP 3 enabled MNP 3 disabled |
|
7 |
í 01 |
Hardware reset disabled Hardware reset enabled |
|
BIT-MAPPED REGISTER S15 | ||
|
Format: |
AT [cmds] S15=n [cmds] | |
|
Default: |
0 | |
|
Range: |
0-255 | |
|
Unit: |
Bit-mapped | |
|
Description: |
Controls HST high frequency equalization, online fallback, back channel, non-error-correcting mode buffer, MNP4, custom applications and MNP compliance. | |
|
Bit |
Value |
Function |
|
0 |
í 01 |
HST high frequency equalization enabled HST high frequency equalization disabled |
|
1 |
í 01 |
Online fallback enabled Online fallback disabled |
|
2 |
í 01 |
300bps back channel enabled 300bps back channel disabled |
|
3 |
í 01 |
Non-error-correcting mode transmit buffer set to 1.5KB Non-error-correcting mode transmit buffer set to 128 bytes |
|
4 |
í 01 |
MNP 4 enabled MNP 4 disabled |
|
5 |
í 01 |
Custom applications only Custom applications only |
|
6 |
í 01 |
MNP normal MNP adjusted for non compliant modems |
|
BIT-MAPPED REGISTER S27 | ||
|
Format: |
AT [cmds] S27=n [cmds] | |
|
Default: |
0 | |
|
Range: |
0-191 | |
|
Unit: |
Bit-mapped | |
|
Description: |
Controls V.21, V.32 encoding and modulation, and high speed rate shift | |
|
Bit |
Value |
Function |
|
0 |
í 01 |
V.21 disabled V.21 enabled |
|
1 |
í 01 |
V.32 non-trellis coding disabled V.32 non-trellis coding enabled |
|
2 |
í 01 |
V.32 modulation enabled V.32 modulation disabled |
|
3 - 5 |
í 000 |
Not used |
|
6 |
í 01 |
19.2Kbps enabled. High speed rate shift needs to be enabled. 38.4Kbps enabled. High speed rate shift needs to be enabled. |
|
7 |
í 01 |
High speed rate shift disabled High speed rate shift enabled |
|
BREAK LENGTH | |
|
Type: |
Register |
|
Format: |
AT [cmds] S21=n [cmds] |
|
Default: |
10 |
|
Range: |
0-255 |
|
Unit: |
10 ms |
|
Description: |
Sets the length of error control mode breaks sent from DCE to DTE |
|
CLOCK | ||
|
Type: |
Configuration | |
|
Format: |
AT [cmds] Kn [cmds] | |
|
Description: |
Displays connection duration or real time | |
|
Command |
Function | |
|
í K0 |
Connection duration displayed in ATI3 | |
|
K1 |
Real time displayed in ATI3. To set clock (military time) use ATI3=HH:MM:SSK1. | |
|
DATA SET READY (DSR) | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &Sn [cmds] |
|
Description: |
Selects DSR options |
|
Command |
Function |
|
í &S0 |
DSR forced high |
|
&S1 |
DSR controlled by modem |
|
&S2 |
DSR toggled, CTS follows CD |
|
&S3 |
DSR toggled |
|
DIAL | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] D<#> [cmds] |
|
Example: |
ATDT 443-3388,,,1111; |
|
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 |
|
í P |
Pulse dialing enabled |
|
T |
Tone dialing enabled |
|
, |
Dialing paused for 2 seconds |
|
; |
Modem returned to command state after dialing. Can only be placed at the end of the dial command. |
|
" |
Dials letters as if they were numbers; ATDT"GOMICRO" |
|
! |
Flash function initiated |
|
@ |
Dial, wait for quiet answer, then continue to execute the rest of the dial string |
|
W |
Dial, wait for second dial tone, then continue to execute the rest of the dial string |
|
R |
Answer mode enabled; originate mode disabled following handshake initiation. |
|
DIAL - STORED NUMBER | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] DSn [cmds] |
|
Description: |
Dial stored number from memory location n |
|
DISCONNECT BUFFER DELAY | |
|
Type: |
Register |
|
Format |
AT [cmds] S38=n [cmds] |
|
Default: |
0 |
|
Range: |
0-255 |
|
Unit: |
1 second |
|
Description: |
Sets maximum duration allowed during buffered data calls for modem to perform clearing functions after losing carrier-signal or receiving a clear call signal from the remote modem and before initiating hang-up process. |
|
DSR DELAY | |
|
Type: |
Register |
|
Format: |
AT [cmds] S24=n [cmds] |
|
Default: |
25 |
|
Range: |
0-255 |
|
Unit: |
.1 second |
|
Description: |
Sets the length of the DSR pulse signal |
|
ECHO | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] En [cmds] |
|
Description: |
Controls echo function; display keyboard commands when enabled. |
|
Command |
Function |
|
E0 |
Echo function disabled |
|
E1 |
Echo function enabled |
|
ECHO - ON-LINE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] Fn [cmds] |
|
Description: |
Selects whether data sent while in data mode are echoed |
|
Command |
Function |
|
F0 |
Local echo enabled |
|
í F1 |
Local echo disabled |
|
ESCAPE SEQUENCE | |
|
Type: |
Immediate |
|
Format: |
+++AT [cmds] <CR> |
|
Description: |
Initiates the escape sequence and returns the modem to the on-line command state if it receives three escape characters set in S2 within the time allotted by S12. |
Note: Do not precede this command with AT. | |
|
FLOW CONTROL CHARACTER - XOFF | |
|
Type: |
Register |
|
Format: |
AT [cmds] S23=n [cmds] |
|
Default: |
19 |
|
Range: |
11-127 |
|
Unit: |
ASCII |
|
Description: |
Sets the character used to represent XOFF |
|
FLOW CONTROL CHARACTER - XON | |
|
Type: |
Register |
|
Format: |
AT [cmds] S22=n [cmds] |
|
Default: |
17 |
|
Range: |
11-127 |
|
Unit: |
ASCII |
|
Description: |
Sets the character used to represent XON |
|
FLOW CONTROL TYPE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &Hn [cmds] |
|
Description: |
Sets type of flow control used by modem |
|
Command |
Function |
|
í &H0 |
Flow control disabled |
|
&H1 |
CTS/RTS flow control enabled |
|
&H2 |
XON/XOFF flow control enabled |
|
&H3 |
CTS/RTS and XON/XOFF flow control enabled |
|
FLOW CONTROL TYPE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &Rn [cmds] |
|
Description: |
Controls receive data hardware flow control and RTS signals |
|
Command |
Function |
|
&R0 |
Delay CTS after RTS. See S26 on length of time. |
|
&R1 |
Modem ignores RTS |
|
í &R2 |
Received data to DTE when RTS is on |
|
FLOW CONTROL PASSTHROUGH | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &In [cmds] |
|
Description: |
Allows modem to act on, then transmit XON/XOFF characters. |
|
Command |
Function |
|
í &I0 |
Software flow control disabled |
|
&I1 |
XON/XOFF passthrough enabled |
|
&I2 |
XON/XOFF passthrough disabled |
|
&I3 |
ENQ/ACK enabled in host mode |
|
&I4 |
ENQ/ACK enabled in terminal mode |
|
&I5 |
XON/XOFF passthrough disabled in error correction mode |
|
GUARD TONE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &Gn [cmds] |
|
Description: |
Commands the modem to transmit a guard tone |
Note: Used primarily for international data transmission | |
|
Command |
Function |
|
í &G0 |
Guard tone disabled |
|
&G1 |
550Hz guard tone enabled |
|
&G2 |
1800Hz guard tone enabled |
|
HOOK CONTROL | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] Hn [cmds] |
|
Description: |
Selects whether the modem is on-hook or off-hook |
|
Command |
Function |
|
H0 |
Modem commanded to go on-hook (hang-up) |
|
H1 |
Modem commanded to go off-hook (pick-up) |
|
LIST AMPERSAND COMMANDS | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] &$ [cmds] |
|
Description: |
Displays ampersand (&) commands |
|
LIST DIAL COMMANDS | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] D$ [cmds] |
|
Description: |
Displays dial commands |
|
LIST S-REGISTERS | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] S$ [cmds] |
|
Description: |
Displays the S-registers |
|
ON-LINE | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] O [cmds] |
|
Description: |
Returns to on-line command (data transmission) mode. |
Note: The O command must be placed at the end of the command string. | |
|
ON-LINE HELP | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] $ [cmds] |
|
Description: |
On-line help; displays basic command list. |
|
PAUSE | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] / (slash) [cmds] |
|
Description: |
125 msec delay before proceeding with dial string or command |
|
PULSE DIALING | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] P [cmds] |
|
Description: |
Enables pulse dialing |
Note: This command can be duplicated with the P modifier in the D (Dial) command. | |
|
PULSE DIALING RATIO | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &Pn [cmds] |
|
Description: |
Selects pulse dial make/break ratio |
|
Command |
Function |
|
&P0 |
39/61ms at 10pps (North America) |
|
&P1 |
33/67ms at 10pps (Europe) |
|
RECEIVE-ONLY | ||
|
Type: |
Configuration | |
|
Format: |
AT [cmds] Cn [cmds] | |
|
Description: |
Sets receive-only; used if modem is attached to additional monitoring-only systems | |
|
Command |
Function | |
|
C0 |
Disables transmitter | |
|
í C1 |
Enables transmitter | |
|
REPEAT COMMAND STRING | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] > [cmds] |
|
Example: |
AT>DT5551212 or ATDT5551212> |
|
Description: |
Causes modem to repeat command string until a keyboard key is pressed |
Note: If used before or after the ATD command, the modem will redial the number until a connection is established or a maximum of ten attempts is reached. | |
|
REPEAT PREVIOUS COMMAND | |
|
Type: |
Immediate |
|
Format: |
A/ |
|
Description: |
Repeats previous command; mainly used for redial. |
Note: Do not precede this command with AT, or follow it with <CR>. | |
|
RTS/CTS DELAY | |
|
Type: |
Register |
|
Format: |
AT [cmds] S26=n [cmds] |
|
Default: |
1 |
|
Range: |
0-255 |
|
Unit: |
.1 second |
|
Description: |
Sets the length of time between RTS and CTS |
|
REPORT INFORMATION | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] In [cmds] |
|
Description: |
Displays information requested |
|
Command |
Function |
|
I0 |
Reports product code |
|
I1 |
Reports ROM checksum |
|
I2 |
Reports RAM checksum |
|
I3 |
Reports connection duration and real time |
|
I4 |
Reports current command settings |
|
I5 |
Reports NVRAM settings |
|
I6 |
Reports link diagnostics |
|
I7 |
Reports product configuration |
|
RESULT CODES | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] Qn [cmds] |
|
Description: |
Enables modem to send result codes to the DTE |
|
Command |
Function |
|
Q0 |
Result code sending enabled |
|
Q1 |
Result code sending disabled |
|
RESULT CODE FORMAT | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] Vn [cmds] |
|
Description: |
Selects word or numeric format for information-text and result codes |
|
Command |
Function |
|
V0 |
Numeric format enabled |
|
V1 |
Verbose (word) format enabled |
|
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. |
|
í X1 |
Busy and dial tone detection disabled; result codes 0-5, 10, 13, and 18 enabled |
|
X2 |
Busy tone detection disabled, dial tone detection enabled; result codes 0-6, 10, 13, and 18 enabled; also adaptive dialing, and fast dialing enabled. |
|
X3 |
Busy tone detection enabled, dial tone detection disabled; result codes 0-5, 7-18 enabled; also adaptive dialing, wait for second dial tone, and wait for answer enabled. |
|
X4 |
Busy and dial tone detection enabled; result codes 0-10, 13, and 18 enabled; also adaptive dialing, wait for second dial tone, wait for answer, and fast dialing enabled. |
|
X5 |
Busy tone detection enabled, dial tone detection disabled; result codes 0-5, 7-18 enabled; also adaptive dialing, wait for second dial tone, and wait for answer enabled. |
|
X6 |
Busy and dial tone detection enabled; result codes 0-18 enabled; also adaptive dialing, wait for second dial tone, wait for answer, and fast dialing enabled. |
|
X7 |
Busy and dial tone detection enabled; result codes 0-11, 13, and 18 enabled; also adaptive dialing, wait for second dial tone, wait for answer, and fast dialing enabled. |
|
Note: Valid numeric result codes; 0-8, 10-13, and 18. | |
|
SOFT RESET | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] Z [cmds] |
|
Description: |
Restores modem software default profile |
|
SPEAKER MODE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] Mn [cmds] |
|
Description: |
Selects various speaker options |
|
Command |
Function |
|
M0 |
Speaker disabled |
|
í M1 |
Speaker enabled until carrier signal detected |
|
M2 |
Speaker enabled |
|
M3 |
Speaker enabled following dialing, then disabled after carrier signal detected. |
|
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 |
|
STATUS-REGISTER | ||
|
Type: |
Configuration | |
|
Format: |
Read: AT [cmds] Sn? [cmds] Write: AT [cmds] Sn=x [cmds] | |
|
Description: |
Writes to or reads from a specified register | |
|
Command |
Function | |
|
Sn.b=x |
Write to register bit b using values 0 (off) and 1 (on) for x | |
|
TEST MODES | ||
|
Type: |
Configuration | |
|
Format: |
AT [cmds] S16=n [cmds] | |
|
Description: |
Controls loopback tests, analog, digital, remote digital, and self tests. | |
|
Command |
Function | |
|
S16=0 |
Testing disabled | |
|
S16=1 |
Local digital loopback enabled | |
|
S16=2 |
Dial test (Factory testing only) | |
|
S16=4 |
Test pattern enabled (transmitted on CONNECT, either on answering or originate) | |
|
S16=5 |
Local analog loopback and test pattern enabled | |
|
S16=8 |
Remote digital loopback enabled | |
|
TONE DIALING | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] T [cmds] |
|
Description: |
Enables tone dialing mode |
Note: This command can be duplicated with the T modifier in the D (Dial) command. | |
|
V.32 - HANDSHAKE TIME | |
|
Type: |
Register |
|
Format: |
AT [cmds] S28=n [cmds] |
|
Default: |
8 |
|
Range: |
0-255 |
|
Unit: |
.1 second |
|
Description: |
Sets length of V.32 handshake |