|
COURIER V.32/PC
3COM CORPORATION
COURIER V.32/PC
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Card Type
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Modem (asynchronous)
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|
Chip Set
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U.S. Robotics
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Maximum Data Rate
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14.4Kbps
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Data Bus
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Unidentified
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Data Modulation Protocol
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Unidentified
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Error Correction/Compression
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Unidentified
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54154
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USER CONFIGURABLE SETTINGS
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Setting
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Label
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Position
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í DTR normal
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SW1/1
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Off
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DTR forced high
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SW1/1
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On
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í Verbal result codes
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SW1/2
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Off
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Numeric result codes
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SW1/2
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On
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í Enable result codes displayed
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SW1/3
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On
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Disable result codes displayed
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SW1/3
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Off
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í Local echo enabled
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SW1/4
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Off
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Local echo disabled
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SW1/4
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On
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í Auto answer disabled
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SW1/5
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On
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Auto answer enabled
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SW1/5
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Off
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í CD signal normal
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SW1/6
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Off
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CD signal forced high
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SW1/6
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On
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í Display result codes in originate and answer mode
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SW1/7
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Off
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Display result codes in originate mode only
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SW1/7
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On
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í Smart mode enabled
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SW1/8
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On
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Dumb mode enabled
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SW1/8
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Off
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í Normal operation enabled
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SW1/9
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On
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Escape sequence enabled
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SW1/9
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Off
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í Restore NVRAM defaults
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SW1/10
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Off
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Restore factory defaults
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SW1/10
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On
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Proprietary AT Command Set
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ABORT
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Type:
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Immediate
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|
Format:
|
Any key
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Description:
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Aborts answering/originating a call; modem hangs up.
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|
ANSWER
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Type:
|
Immediate
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Format:
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AT [cmds] A
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Description:
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Enables manual answer mode, the modem goes off-hook; pressing any key will abort.
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ANSWER SEQUENCE
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Type:
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Configuration
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|
Format:
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AT [cmds] Bn [cmds]
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Description:
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Selects the answer sequence the modem will use
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Command
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Function
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í B0
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V.32 mode/ITU-T answer sequence enabled
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B1
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HST mode/Bell answer tone enabled
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ATTENTION
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Type:
|
Immediate
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Format:
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AT [cmds]
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Description:
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Tells the modem that a command follows or use alone to test OK result code
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BIT-MAPPED REGISTER S13
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Format
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AT [cmds] S13=n [cmds]
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Default:
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0
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Range:
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0-255
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Unit:
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Bit-mapped
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Description:
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Controls DTR reset, DTR dialing, reset dialing, HST modulation, and MNP3.
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Bit
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Value
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Function
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0
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í 0
1
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DTR normal
Reset on low DTR
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1
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í 0
1
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Normal auto answer operation
When ring is received, enter originate and listen for answer tone
|
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2
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í 0
1
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Pause 250msec. Before displaying result codes
Immediate result code display
|
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3
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í 0
1
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DTR dialing disabled
DTR dialing enabled
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4
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í 0
1
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Reset dialing disabled
Reset dialing enabled
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5
|
í 0
1
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HST modulation enabled
HST modulation disabled
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6
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í 0
1
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MNP 3 enabled
MNP 3 disabled
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7
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í 0
1
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Hardware reset disabled
Hardware reset enabled
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BIT-MAPPED REGISTER S15
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Format:
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AT [cmds] S15=n [cmds]
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Default:
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0
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Range:
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0-255
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Unit:
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Bit-mapped
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Description:
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Controls HST high frequency equalization, online fallback, back channel, non-error-correcting mode buffer, MNP4, custom applications and MNP compliance.
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Bit
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Value
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Function
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0
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í 0
1
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HST high frequency equalization enabled
HST high frequency equalization disabled
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1
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í 0
1
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Online fallback enabled
Online fallback disabled
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2
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í 0
1
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300bps back channel enabled
300bps back channel disabled
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3
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í 0
1
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Non-error-correcting mode transmit buffer set to 1.5KB
Non-error-correcting mode transmit buffer set to 128 bytes
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4
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í 0
1
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MNP 4 enabled
MNP 4 disabled
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5
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í 0
1
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Custom applications only
Custom applications only
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6
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í 0
1
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MNP normal
MNP adjusted for non compliant modems
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BIT-MAPPED REGISTER S27
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Format:
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AT [cmds] S27=n [cmds]
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Default:
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0
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Range:
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0-191
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Unit:
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Bit-mapped
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Description:
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Controls V.21, V.32 encoding and modulation, and high speed rate shift
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Bit
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Value
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Function
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0
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í 0
1
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V.21 disabled
V.21 enabled
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1
|
í 0
1
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V.32 non-trellis coding disabled
V.32 non-trellis coding enabled
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2
|
í 0
1
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V.32 modulation enabled
V.32 modulation disabled
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3 - 5
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í 000
|
Not used
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|
6
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í 0
1
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19.2Kbps enabled. High speed rate shift needs to be enabled.
38.4Kbps enabled. High speed rate shift needs to be enabled.
|
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7
|
í 0
1
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High speed rate shift disabled
High speed rate shift enabled
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BREAK LENGTH
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Type:
|
Register
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Format:
|
AT [cmds] S21=n [cmds]
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Default:
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10
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Range:
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0-255
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Unit:
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10 ms
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Description:
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Sets the length of error control mode breaks sent from DCE to DTE
|
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CLOCK
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Type:
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Configuration
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Format:
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AT [cmds] Kn [cmds]
|
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Description:
|
Displays connection duration or real time
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Command
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Function
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í K0
|
Connection duration displayed in ATI3
|
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K1
|
Real time displayed in ATI3. To set clock (military time) use ATI3=HH:MM:SSK1.
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DATA SET READY (DSR)
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Type:
|
Configuration
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Format:
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AT [cmds] &Sn [cmds]
|
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Description:
|
Selects DSR options
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Command
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Function
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|
í &S0
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DSR forced high
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&S1
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DSR controlled by modem
|
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&S2
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DSR toggled, CTS follows CD
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&S3
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DSR toggled
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DIAL
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Type:
|
Immediate
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Format:
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AT [cmds] D<#> [cmds]
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Example:
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ATDT 443-3388,,,1111;
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|
Description:
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Dials telephone number according to any modifiers included in the string
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|
Note:
|
Any combination of modifiers can be used to produce the desired dial functions in sequence.
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Command
|
Function
|
|
í P
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Pulse dialing enabled
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T
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Tone dialing enabled
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|
,
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Dialing paused for 2 seconds
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;
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Modem returned to command state after dialing. Can only be placed at the end of the dial command.
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"
|
Dials letters as if they were numbers; ATDT"GOMICRO"
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!
|
Flash function initiated
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@
|
Dial, wait for quiet answer, then continue to execute the rest of the dial string
|
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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.
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DIAL - STORED NUMBER
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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
|
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Range:
|
0-255
|
|
Unit:
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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
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ECHO
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Type:
|
Configuration
|
|
Format:
|
AT [cmds] En [cmds]
|
|
Description:
|
Controls echo function; display keyboard commands when enabled.
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|
Command
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Function
|
|
E0
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Echo function disabled
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E1
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Echo function enabled
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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.
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|
FLOW CONTROL CHARACTER - XOFF
|
|
Type:
|
Register
|
|
Format:
|
AT [cmds] S23=n [cmds]
|
|
Default:
|
19
|
|
Range:
|
11-127
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Unit:
|
ASCII
|
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Description:
|
Sets the character used to represent XOFF
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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
|
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FLOW CONTROL TYPE
|
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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.
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Command
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Function
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S16=0
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Testing disabled
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S16=1
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Local digital loopback enabled
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S16=2
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Dial test (Factory testing only)
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S16=4
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Test pattern enabled (transmitted on CONNECT, either on answering or originate)
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S16=5
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Local analog loopback and test pattern enabled
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S16=8
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Remote digital loopback enabled
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TONE DIALING
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Type:
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Configuration
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Format:
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AT [cmds] T [cmds]
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Description:
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Enables tone dialing mode
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Note: This command can be duplicated with the T modifier in the D (Dial) command.
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V.32 - HANDSHAKE TIME
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Type:
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Register
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Format:
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AT [cmds] S28=n [cmds]
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Default:
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8
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Range:
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0-255
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Unit:
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.1 second
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Description:
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Sets length of V.32 handshake
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