MOTOROLA, INC.
MODEMSURFR 28800 INTERNAL
| 
 Card Type  | 
 Modem (asynchronous)/Fax  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 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.23, V.32, V.32bis, V.34  | 
| 
 Fax Modulation Protocol  | 
 ITU-T V.17, V.21CH2, V.27ter, V.29  | 
| 
 Error Correction/Compression  | 
 MNP5, V.42, V.42bis  | 

| 
 CONNECTIONS  | ||||||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | |||
| 
 Line out  | 
 CN1  | 
 Line in  | 
 CN2  | |||
| 
 SERIAL PORT ADDRESS  | ||
| 
 Setting  | 
 J1/A  | 
 J1/B  | 
| 
 COM1 (3F8h)  | 
 Closed  | 
 Closed  | 
| 
 COM2 (2F8h)  | 
 Closed  | 
 Open  | 
| 
 í COM3 (3E8h) | 
 Open  | 
 Closed  | 
| 
 COM4 (2E8h)  | 
 Open  | 
 Open  | 
| 
 INTERRUPT  | ||||
| 
 Setting  | 
 J1/C  | 
 J1/D  | 
 J1/E  | 
 J1/F  | 
| 
 2  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | 
| 
 3  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 4  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 í 5 | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 PLUG AND PLAY  | ||||
| 
 Setting  | 
 J2/A  | 
 J2/B  | 
 J2/C  | 
 J2/D  | 
| 
 í Disabled | 
 Closed  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 Enabled  | 
 Open  | 
 Open  | 
 Closed  | 
 Closed  | 
Proprietary AT Command Set
| 
 AUTO-RELIABLE FALLBACK CHARACTER  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %An [cmds]  | 
| 
 Default:  | 
 Unidentified  | 
| 
 Range:  | 
 1-127  | 
| 
 Unit:  | 
 ASCII  | 
| 
 Description:  | 
 Sets the character used as the auto-reliable fallback character  | 
| 
 Note: %A0 Auto-reliable fallback character disabled | |
| 
 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 | 
 Disabled auto-reliable buffer  | 
| 
 \C1  | 
 Data is buffered for 4 seconds or 200 characters  | 
| 
 \C2  | 
 Switch to normal mode and sends auto-reliable character to serial port  | 
| 
 AUTO FALL FORWARD/FALLBACK  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Gn [cmds]  | 
| 
 Description:  | 
 Selects auto fallback/fall forward  | 
| 
 Command  | 
 Function  | 
| 
 í %G0 | 
 Fallback/fall forward disabled  | 
| 
 %G1  | 
 Fallback/fall forward enabled  | 
| 
 AUTO FALLBACK CHARACTER  | |
| 
 Type:  | 
 Register  | 
| 
 Format:  | 
 AT [cmds] S43=n [cmds]  | 
| 
 Default:  | 
 13  | 
| 
 Range:  | 
 0-127  | 
| 
 Unit:  | 
 ASCII  | 
| 
 Description:  | 
 Set auto fallback character during MNP negotiation  | 
| 
 Note: S43=0 disabled S43=(1-127) enabled | |
| 
 COMPRESSION  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Cn [cmds]  | 
| 
 Description:  | 
 Selects 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 reliable mode enabled  | 
| 
 í \N3 | 
 LAPM, MNP, or normal mode enabled  | 
| 
 \N4  | 
 LAPM or MNP mode enabled  | 
| 
 DISPLAY CONNECT MESSAGE  | |
| 
 Type  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S41? [cmds]  | 
| 
 Description  | 
 Displays connect message  | 
| 
 Command  | 
 Function  | 
| 
 í S41=0 | 
 CONNECT/DTE to modem speed enabled  | 
| 
 S41=1  | 
 CONNECT/carrier, protocol, and compression enabled  | 
| 
 S41=2  | 
 CONNECT/modem to modem speed 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  | 
 XON/XOFF flow control enabled  | 
| 
 \Q2  | 
 CTS flow control by DTE enabled  | 
| 
 í \Q3 | 
 CTS/RTS 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  | 
| 
 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  | 
| 
 EXTENDED RESULT CODES  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Vn [cmds]  | 
| 
 Description:  | 
 Selects extended result codes  | 
| 
 Command  | 
 Function  | 
| 
 í \V0 | 
 Extended result codes disabled  | 
| 
 \V1  | 
 Extended result codes enabled  | 
| 
 V.32 RETRAIN  | |
| 
 Type:  | 
 Register  | 
| 
 Format:  | 
 AT [cmds] S42=n [cmds]  | 
| 
 Description:  | 
 Selects action the modem will take during bad line quality on V.32/32bis connection  | 
| 
 Command  | 
 Function  | 
| 
 S42=0  | 
 Auto-retrain disabled, hang up  | 
| 
 í S42=1 | 
 Auto-retrain on line quality problem enabled  | 
| 
 S42=2  | 
 Modem ignores line quality problems  | 
| 
 S42=3  | 
 Unidentified  | 
| 
 V.42 DETECTION PHASE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] -Jn [cmds]  | 
| 
 Description:  | 
 Controls V.42 detection  | 
| 
 Command  | 
 Function  | 
| 
 -J0  | 
 V.42 detection disabled  | 
| 
 í -J1 | 
 V.42 detection enabled  | 
| 
 V.42bis COMPRESSION CONTROL  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] "Hn [cmds]  | 
| 
 Description:  | 
 Controls V.42bis data compression  | 
| 
 Command  | 
 Function  | 
| 
 "H0  | 
 V.42bis disabled  | 
| 
 "H1  | 
 V.42bis when transmitting enabled  | 
| 
 "H2  | 
 V.42bis when receiving enabled  | 
| 
 í "H3 | 
 V.42bis when transmitting/receiving enabled  | 
| 
 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  |