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# PRACTICAL PERIPHERALS, INC.
PC288LCD V.34/MC288LCD V.34
Modem Type Data (synchronous/asynchronous)/Fax
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.34
Rockwell V.FC
Fax Modulation ITU-T V.17, V.27ter, V.29, V.33
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Menu down | BT1 | Line in | CN2 |
|------------------+----------+-------------------+----------|
| Mode select | BT2 | RS-232/422 | CN3 |
|------------------+----------+-------------------+----------|
| Menu up | BT3 | DC power | CN4 |
|------------------+----------+-------------------+----------|
| Line out | CN1 | Power switch | SW1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+--------+----------+--------------------------------|
| TX | Red | On | Modem is transmitting data |
|-------+--------+----------+--------------------------------|
| TX | Red | Off | Modem is not transmitting data |
|-------+--------+----------+--------------------------------|
| RX | Red | On | Modem is receiving data |
|-------+--------+----------+--------------------------------|
| RX | Red | Off | Modem is not receiving data |
|-------+--------+----------+--------------------------------|
| OH | Red | On | Modem is off-hook |
|-------+--------+----------+--------------------------------|
| OH | Red | Off | Modem is on-hook |
|-------+--------+----------+--------------------------------|
| AA | Red | On | Auto-answer enabled |
|-------+--------+----------+--------------------------------|
| AA | Red | Off | Auto-answer disabled |
|-------+--------+----------+--------------------------------|
| AA | Red | Blinking | Phone is ringing |
|-------+--------+----------+--------------------------------|
| EC | Red | On | Error correction enabled |
|-------+--------+----------+--------------------------------|
| EC | Red | Off | Error correction disabled |
|-------+--------+----------+--------------------------------|
| 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 |
|-------+--------+----------+--------------------------------|
| RS | Red | On | RTS signal is high |
|-------+--------+----------+--------------------------------|
| RS | Red | Off | RTS signal is low |
|-------+--------+----------+--------------------------------|
| CS | Red | On | CTS signal is high |
|-------+--------+----------+--------------------------------|
| CS | Red | Off | CTS signal is low |
|-------+--------+----------+--------------------------------|
| CD | Red | On | Carrier signal detected |
|-------+--------+----------+--------------------------------|
| CD | Red | Off | Carrier signal not detected |
|-------+--------+----------+--------------------------------|
| CD | Red | Blinking | Modem is retraining |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| CALLER ID |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %CCID=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %CCID=2<CR> |
|--------------+---------------------------------------------|
| Description: | Controls the Caller ID function. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » %CCID=0 | Caller ID disabled. |
|--------------+---------------------------------------------|
| %CCID=1 | Caller ID displays formatted data. |
|--------------+---------------------------------------------|
| %CCID=2 | Caller ID displays raw hexadecimal data. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMAND SET |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %DUMBn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %DUMB1<CR> |
|--------------+---------------------------------------------|
| Description: | Disables the AT command set. |
|--------------+---------------------------------------------|
| Note: | The AT command set is always active for the |
| | first 20 seconds after the modem is powered |
| | up. AT%DUMB0 can be entered during this |
| | time period to re-enable the command set. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » %DUMB0 | Command set enabled. |
|--------------+---------------------------------------------|
| %DUMB1 | Command set disabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EXTENDED RING |
|------------------------------------------------------------|
| Format: | AT [cmds] S101=n [cmds] |
|-----------------+------------------------------------------|
| Example: | ATS101=40<CR> |
|-----------------+------------------------------------------|
| Default: | 0 |
|-----------------+------------------------------------------|
| Range: | 0 - 255 |
|-----------------+------------------------------------------|
| Unit: | Bit-mapped |
|-----------------+------------------------------------------|
| Description: | Selects the response to extended ring |
| | types. |
|------------------------------------------------------------|
| Bit | Value | Function |
|-----------+---------+--------------------------------------|
| 0 | » 0 1 | Do not respond to ring type A. |
| | | |
| | | Respond to ring type A. |
|-----------+---------+--------------------------------------|
| 1 | » 0 1 | Do not respond to ring type B. |
| | | |
| | | Respond to ring type B. |
|-----------+---------+--------------------------------------|
| 2 | » 0 1 | Do not respond to ring type C. |
| | | |
| | | Respond to ring type C. |
|-----------+---------+--------------------------------------|
| 3 | » 0 1 | Do not respond to ring type D. |
| | | |
| | | Respond to ring type D. |
|-----------+---------+--------------------------------------|
| 4 | » 0 1 | Do not respond to ring type E. |
| | | |
| | | Respond to ring type E. |
|-----------+---------+--------------------------------------|
| 5 | » 0 1 | Do not respond to ring type F. |
| | | |
| | | Respond to ring type F. |
|-----------+---------+--------------------------------------|
| 6 | » 0 1 | Do not respond to ring type G. |
| | | |
| | | Respond to ring type G. |
|-----------+---------+--------------------------------------|
| 7 | » 0 1 | Report RING for all ring types. |
| | | |
| | | Report RING n where n is the ring |
| | | type. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HELP SCREENS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] $H |
|--------------+---------------------------------------------|
| Example: | AT $H<CR> |
|--------------+---------------------------------------------|
| Description: | Shows modem help screens. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LCD DISPLAY STRING ECHO |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %LCD? [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %LCD?<CR> |
|--------------+---------------------------------------------|
| Description: | Returns the first two lines of text on the |
| | modem’s LCD display. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LCD DISPLAY STRING SET |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %LCD="xxxx" [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %LCD="Preparing the fnord..."<CR> |
|--------------+---------------------------------------------|
| Description: | Displays up to 24 characters on the first |
| | two lines of the modem’s LCD display. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LCD SCROLL RATE - LINE 1 |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S118=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS118=20<CR> |
|--------------+---------------------------------------------|
| Default: | 10 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | .1 second |
|--------------+---------------------------------------------|
| Description: | Sets the length of time that each message |
| | will be displayed on line 1 of the front |
| | panel LCD if there are more messages |
| | pending. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LCD SCROLL RATE - LINE 2 |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S119=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS119=5<CR> |
|--------------+---------------------------------------------|
| Default: | 10 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | .1 second |
|--------------+---------------------------------------------|
| Description: | Sets the length of time that each message |
| | will be displayed on line 2 of the front |
| | panel LCD if there are more messages |
| | pending. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REDIAL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] DL |
|--------------+---------------------------------------------|
| Example: | AT M1 DL<CR> |
|--------------+---------------------------------------------|
| Description: | Redials the last number dialed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Example: | AT I1 &W<CR> |
|--------------+---------------------------------------------|
| Description: | Displays modem properties. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports modem model and speed. |
|--------------+---------------------------------------------|
| I1 | Reports checksum number. |
|--------------+---------------------------------------------|
| I2 | Reports checksum result. |
|--------------+---------------------------------------------|
| I3 | Reports firmware version. |
|--------------+---------------------------------------------|
| I4 | Reports current command settings. |
|--------------+---------------------------------------------|
| I6 | Reports current connection’s statistics. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TIME MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %HOUR=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %HOUR=24<CR> |
|--------------+---------------------------------------------|
| Description: | Sets the modem’s clock to display in 12- or |
| | 24-hour mode |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » %HOUR=12 | Normal 12-hour mode selected. |
|--------------+---------------------------------------------|
| %HOUR=24 | Military 24-hour mode selected. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TIME SET |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %TIME=hhmmss [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %TIME=160401<CR> |
|--------------+---------------------------------------------|
| Description: | Sets the modem’s clock. |
|--------------+---------------------------------------------|
| Note: | Time given must be six digits long and in |
| | military format. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Tn |
|--------------+---------------------------------------------|
| Example: | AT &T6<CR> |
|--------------+---------------------------------------------|
| Description: | Performs and configures test modes. |
|--------------+---------------------------------------------|
| 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 | Request remote digital loopback |
|--------------+---------------------------------------------|
| &T7 | Request remote digital loopback and |
| | self-test. |
|--------------+---------------------------------------------|
| &T8 | Begin local analog loopback and self-test. |
|--------------+---------------------------------------------|
| &T19 | Begin RTS/CTS cable test. |
|--------------+---------------------------------------------|
| &T99 | Begin front panel LCD display test. |
+------------------------------------------------------------+