PRACTICAL PERIPHERALS, INC.
PC144MT II/MC144MT II
|
Modem Type |
Data (synchronous/asynchronous)/Fax |
|
Maximum Data Rate |
14.4Kbps |
|
Maximum Fax Rate |
14.4Kbps |
|
Data Bus |
External |
|
Fax Class |
Class I & II |
|
Data Modulation Protocol |
Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis |
|
Fax Modulation Protocol |
ITU-T V.17, V.27ter, V.29 |
|
Error Correction/Compression |
MNP5, V.42, V.42bis |

|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Line in |
CN1 |
RS-232/422 |
CN4 |
|
Line out |
CN2 |
Power switch |
SW1 |
|
DC Power |
CN3 | ||
|
DIAGNOSTIC LED(S) | |||
|
LED |
Color |
Status |
Condition |
|
AA |
Red |
On |
Auto-answer enabled |
|
AA |
Red |
Off |
Auto-answer disabled |
|
AA |
Red |
Blinking |
Line is ringing |
|
RX |
Red |
On |
Modem is receiving data |
|
RX |
Red |
Off |
Modem is not receiving data |
|
TX |
Red |
On |
Modem is transmitting data |
|
TX |
Red |
Off |
Modem is not transmitting data |
|
CD |
Red |
On |
Carrier signal detected |
|
CD |
Red |
Off |
Carrier signal not detected |
|
CD |
Red |
Blinking |
Modem is retraining |
|
OH |
Red |
On |
Modem is off-hook |
|
OH |
Red |
Off |
Modem is on-hook |
|
HS |
Red |
On |
Modem connected at 4800bps or faster |
|
HS |
Red |
Off |
Modem connected at less than 4800bps |
|
TR |
Red |
On |
DTR signal is high |
|
TR |
Red |
Off |
DTR signal is low |
|
MR |
Red |
On |
Power on |
|
MR |
Red |
Off |
Power off |
Proprietary Command Set
|
COMMAND SET DISABLE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] %DUMBn [cmds] |
|
Example: |
AT %DUMB0 &W <CR> |
|
Description: |
Stops modem from responding to commands. |
| Command |
Function |
| » %DUMB0 |
Command set enabled. |
| %DUMB1 |
Command set disabled. |
|
REDIAL | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] DL |
|
Example: |
AT M0 DL <CR> |
|
Description: |
Redials the last number called. |
|
REPORT INFORMATION | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] In [cmds] |
|
Example: |
AT IO <CR> |
|
Description: |
Commands modem to display information requested. |
|
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. |