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# CREATIX POLYMEDIA
AT&T 28.8 (EXTERNAL)
Card Type Modem (synchronous/asynchronous)
Chip Set AT&T
I/O Options Voice
Maximum Data Rate 28.8Kbps
Maximum Fax Rate 14.4Kbps
Data Bus External
Fax Class Class I & II
Data Modulation Bell 103A/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32bis, V.32terbo, V.34
Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| Line in | CN1 | DC power | CN4 |
|---------------------------+----------+--------------+------|
| Line out | CN2 | Power switch | SW1 |
|---------------------------+----------+--------------+------|
| RS-232/422 | CN3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+-------+--------+------------------------------------|
| MR | Red | On | Power is on |
|------+-------+--------+------------------------------------|
| MR | Red | Off | Power is off |
|------+-------+--------+------------------------------------|
| TR | Red | On | DTR signal is high |
|------+-------+--------+------------------------------------|
| TR | Red | Off | DTR signal is low |
|------+-------+--------+------------------------------------|
| SD | Red | On | Modem is transmitting data |
|------+-------+--------+------------------------------------|
| SD | Red | Off | Modem is not transmitting data |
|------+-------+--------+------------------------------------|
| RD | Red | On | Modem is receiving data |
|------+-------+--------+------------------------------------|
| RD | Red | Off | Modem is not receiving data |
|------+-------+--------+------------------------------------|
| OH | Red | On | Modem is off-hook |
|------+-------+--------+------------------------------------|
| OH | Red | Off | Modem is on-hook |
|------+-------+--------+------------------------------------|
| CD | Red | On | Carrier signal detected |
|------+-------+--------+------------------------------------|
| CD | Red | Off | Carrier signal not detected |
|------+-------+--------+------------------------------------|
| AA | Red | On | Auto-answer enabled |
|------+-------+--------+------------------------------------|
| AA | Red | Off | Auto-answer disabled |
|------+-------+--------+------------------------------------|
| EC | Red | On | Error correction enabled |
|------+-------+--------+------------------------------------|
| EC | Red | Off | Error correction disabled |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| AUTO-RELIABLE FALLBACK CHARACTER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %An [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-127 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used as the |
| | auto-reliable fallback character. %A0 will |
| | disable this function. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-RELIABLE FALLBACK CHARACTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S29=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-127 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used as the |
| | auto-reliable fallback character. %A0 will |
| | disable this function. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-RELIABLE TIME BUFFER CONFIGURATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the handling of incoming data |
| | during auto-reliable time period |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í \CO | Data is discarded |
|--------------+---------------------------------------------|
| \C1 | Data is buffered |
|--------------+---------------------------------------------|
| \C2 | Data is discarded, sets to normal mode and |
| | sends auto-reliable character to serial |
| | port. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-RETRAIN - FALLBACK/FALLFORWARD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %En [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls auto-retrain mode and |
| | fallback/fall forward |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %E0 | Auto-retrain disabled |
|--------------+---------------------------------------------|
| %E1 | Auto-retrain enabled |
|--------------+---------------------------------------------|
| í %E2 | Fallback/fall forward enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT MAPPED REGISTERS |
|------------------------------------------------------------|
| Register | Default |
|------------------------------+-----------------------------|
| S14 | 137 |
|------------------------------+-----------------------------|
| S15 | 83 |
|------------------------------+-----------------------------|
| S16 | 0 |
|------------------------------+-----------------------------|
| S17 | 75 |
|------------------------------+-----------------------------|
| S19 | 3 |
|------------------------------+-----------------------------|
| S20 | 0 |
|------------------------------+-----------------------------|
| S21 | 48 |
|------------------------------+-----------------------------|
| S22 | 246 |
|------------------------------+-----------------------------|
| S23 | 12 |
|------------------------------+-----------------------------|
| S24 | 72 |
|------------------------------+-----------------------------|
| S27 | 0 |
|------------------------------+-----------------------------|
| S28 | 16 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK SEND |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Bn [cmds] |
|--------------+---------------------------------------------|
| Default: | 3 |
|--------------+---------------------------------------------|
| Range: | 0-9 |
|--------------+---------------------------------------------|
| Unit: | .1 second |
|--------------+---------------------------------------------|
| Description: | Sends break to modem |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK TYPE |
|------------------------------------------------------------|
| Type | Configuration |
|-------------+----------------------------------------------|
| Format | AT [cmds] \Kn [cmds] |
|-------------+----------------------------------------------|
| Default | 5 |
|-------------+----------------------------------------------|
| Range | 0-5 |
|-------------+----------------------------------------------|
| Description | Configures action of break signal |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls data compression |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %C0 | Data compression disabled |
|--------------+---------------------------------------------|
| í %C1 | Data compression enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECT MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets connect mode |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \N0 | Normal mode enabled |
|--------------+---------------------------------------------|
| \N1 | Direct mode enabled |
|--------------+---------------------------------------------|
| \N2 | MNP mode only enabled |
|--------------+---------------------------------------------|
| í \N3 | LAP-M/MNP/Normal mode enabled |
|--------------+---------------------------------------------|
| \N4 | LAP-M mode only enabled |
|--------------+---------------------------------------------|
| \N5 | LAP-M/Normal mode enabled |
|--------------+---------------------------------------------|
| \N6 | LAP-M/MNP mode enabled. |
|--------------+---------------------------------------------|
| \N7 | MNP/Normal mode enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTION SPEED UPPER LIMIT |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the maximum DCE connection speed |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %B300 | Select 300bps speed |
|--------------+---------------------------------------------|
| %B1200 | Select 1200bps speed |
|--------------+---------------------------------------------|
| %B2400 | Select 2400bps speed |
|--------------+---------------------------------------------|
| %B4800 | Select 4800bps speed |
|--------------+---------------------------------------------|
| %B7200 | Select 7200bps speed |
|--------------+---------------------------------------------|
| %B9600 | Select 9600bps speed |
|--------------+---------------------------------------------|
| %B12000 | Select 12Kbps speed |
|--------------+---------------------------------------------|
| %B14400 | Select 14.4Kbps speed |
|--------------+---------------------------------------------|
| %B16800 | Select 16.8Kbps speed |
|--------------+---------------------------------------------|
| %B19200 | Select 19.2Kbps speed |
|--------------+---------------------------------------------|
| %B21600 | Select 21.6Kbps speed |
|--------------+---------------------------------------------|
| %B24000 | Select 24Kbps speed |
|--------------+---------------------------------------------|
| %B26400 | Select 26.4Kbps speed |
|--------------+---------------------------------------------|
| %B28800 | Select 28.8Kbps speed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DTE BAUD RATE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls DTE baud rate |
|------------------------------------------------------------|
| Command | Function |
|-------------------+----------------------------------------|
| í %N0 | IBM PC |
|-------------------+----------------------------------------|
| %N1 | NEC PC98 set 1 |
|-------------------+----------------------------------------|
| %N2 | NEC PC98 set 2 |
|------------------------------------------------------------|
| Note: For use with external models |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EXTENDED RESULT CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Vn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects extended result codes |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \V0 | Modem speed result codes enabled |
|--------------+---------------------------------------------|
| \V1 | Modem speed and basic REL result codes |
| | enabled |
|--------------+---------------------------------------------|
| í \V2 | All extended result codes enabled |
|--------------+---------------------------------------------|
| \V3 | Computer speed result codes enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Gn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects modem port flow control |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í \G0 | Flow control disabled |
|--------------+---------------------------------------------|
| \G1 | Flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Qn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets type of flow control used by modem |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \Q0 | Flow control disabled |
|--------------+---------------------------------------------|
| \Q1 | Bidirectional XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| \Q2 | CTS flow control by DCE enabled |
|--------------+---------------------------------------------|
| í \Q3 | CTS/RTS flow control enabled |
|--------------+---------------------------------------------|
| \Q4 | Unidirectional XON/XOFF flow control |
| | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INACTIVITY TIMER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Tn [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-90 |
|--------------+---------------------------------------------|
| Unit: | 1 minute |
|--------------+---------------------------------------------|
| Description: | Sets the length of time that the modem does |
| | not receive information before it |
| | disconnects |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE SIGNAL QUALITY |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Q [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays line signal quality and receive |
| | level in dBm |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DUMB MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Dn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls smart/dumb mode |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í %D0 | Smart mode enabled |
|--------------+---------------------------------------------|
| %D1 | Dumb mode enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCK SERIAL PORT |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Jn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets operation of serial port speed |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í \J0 | Serial speed locked |
|--------------+---------------------------------------------|
| \J1 | Serial speed follows connect speed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MAXIMUM BLOCK SIZE FOR TRANSMISSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \An [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the maximum transmittable block size |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \A0 | MNP block size is 64 characters |
|--------------+---------------------------------------------|
| \A1 | MNP block size is 128 characters |
|--------------+---------------------------------------------|
| \A2 | MNP block size is 192 characters |
|--------------+---------------------------------------------|
| í \A3 | MNP block size is 256 characters |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MODULATION SELECTION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Mn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls V.34 and V.32terbo modulation |
| | selection |
|------------------------------------------------------------|
| Command | Function |
|---------------------+--------------------------------------|
| í \M0 | V.34 and V.32terbo enabled |
|---------------------+--------------------------------------|
| \M1 | V.32terbo disabled |
|---------------------+--------------------------------------|
| \M2 | V.34 disabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SLEEP TIMER |
|------------------------------------------------------------|
| Format | AT [cmds] S13=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 6 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | 1 second |
|--------------+---------------------------------------------|
| Description: | Maximum duration of DTE and DCE inactivity |
| | allowed prior to initiating low-power sleep |
| | mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMIT ATTENUATION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S91=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 12 |
|--------------+---------------------------------------------|
| Range: | 0-15 |
|--------------+---------------------------------------------|
| Unit: | -1dBm |
|--------------+---------------------------------------------|
| Description: | Controls attenuation for transmit level |
+------------------------------------------------------------+
+------------------------------------------------------------+
| XON/XOFF PASS-THROUGH |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Xn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether XON/XOFF signals are sent |
| | to remote modem |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í \X0 | XON/XOFF signals trapped by local modem |
|--------------+---------------------------------------------|
| \X1 | XON/XOFF passed through local modem |
+------------------------------------------------------------+