PRACTICAL PERIPHERALS, INC.
PM288HC II V.34
| 
 Modem Type  | 
 Data (synchronous/asynchronous)/Fax  | 
| 
 Maximum Data Rate  | 
 28.8Kbps  | 
| 
 Maximum Fax Rate  | 
 14.4Kbps  | 
| 
 Data Bus  | 
 8-bit ISA  | 
| 
 Fax Class  | 
 Class I & II  | 
| 
 Data Modulation Protocol  | 
 Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34 Rockwell V.FC  | 
| 
 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 out  | 
 CN1  | 
 Line in  | 
 CN2  | 
| 
 BASE I/O ADDRESS SELECTION  | ||
| 
 Address  | 
 E1  | 
 E3  | 
| 
 COM1: (3F8h)  | 
 Closed  | 
 Closed  | 
| 
 COM2: (2F8h)  | 
 Open  | 
 Closed  | 
| 
 COM3: (3E8h)  | 
 Closed  | 
 Open  | 
| 
 COM4: (2E8h)  | 
 Open  | 
 Open  | 
| 
 INTERRUPT SELECTION  | ||||
| 
 IRQ  | 
 E4  | 
 E5  | 
 E6  | 
 E7  | 
| 
 2  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 3  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | 
| 
 4  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 5  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
Proprietary AT Command Set
| 
 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.  |