ZOOM TELEPHONICS, INC.
14400BPS FAXMODEM (INTERNAL)
| 
 Card Type  | 
 Fax, Modem (asynchronous)  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Maximum Data Rate  | 
 14.4Kbps  | 
| 
 Maximum Fax Rate  | 
 14.4Kbps  | 
| 
 Data Bus  | 
 8-bit ISA  | 
| 
 Fax Class  | 
 Class I & II  | 
| 
 Data Modulation Protocol  | 
 Bell 103/212A ITU-T V.21, V.22A/B, V.22bis, V.23, V.32, V.32bis  | 
| 
 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 in  | 
 CN1  | 
 Line out  | 
 CN2  | |||
| 
 SERIAL PORT ADDRESS/INTERRUPT SELECTION  | |||
| 
 Setting  | 
 IRQ  | 
 JP1  | 
 JP2  | 
| 
 COM1 (3F8h)  | 
 4  | 
 Pins 3 & 5, 4 & 6 closed  | 
 Pins 1 & 3 closed  | 
| 
 COM2 (2F8h)  | 
 3  | 
 Pins 2 & 4, 3 & 5 closed  | 
 Pins 2 & 4 closed  | 
| 
 COM3 (3E8h)  | 
 4  | 
 Pins 1 & 3, 4 & 6 closed  | 
 Pins 1 & 3 closed  | 
| 
 í COM4 (2E8h) | 
 3  | 
 Pins 1 & 3, 2 & 4 closed  | 
 Pins 2 & 4 closed  | 
| 
 COM5 (3E8h)  | 
 2  | 
 Pins 1 & 3, 4 & 6 closed  | 
 Pins 4 & 6 closed  | 
| 
 COM6 (2E8h)  | 
 2  | 
 Pins 1 & 3, 2 & 4 closed  | 
 Pins 4 & 6 closed  | 
| 
 COM7 (3E8h)  | 
 5  | 
 Pins 1 & 3, 4 & 6 closed  | 
 Pins 3 & 5 closed  | 
| 
 COM8 (2E8h)  | 
 5  | 
 Pins 1 & 3, 2 & 4 closed  | 
 Pins 3 & 5 closed  | 
Proprietary AT Command Set
| 
 AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %En [cmds]  | 
| 
 Description:  | 
 Controls auto-retrain mode and fallback/fall-forward  | 
| 
 Command  | 
 Function  | 
| 
 í %E0 | 
 Auto-retrain disabled  | 
| 
 %E1  | 
 Auto-retrain enabled  | 
| 
 %E2  | 
 Auto-fallback/fall-forward enabled  | 
| 
 %E3  | 
 Auto-fallback/fall-forward with fast hang-up enabled  | 
| 
 BIT MAPPED REGISTERS  | |
| 
 Register  | 
 Default  | 
| 
 S14  | 
 Unidentified  | 
| 
 S16  | 
 Unidentified  | 
| 
 S21  | 
 Unidentified  | 
| 
 S22  | 
 Unidentified  | 
| 
 S23  | 
 Unidentified  | 
| 
 S27  | 
 Unidentified  | 
| 
 S28  | 
 Unidentified  | 
| 
 S31  | 
 Unidentified  | 
| 
 S40  | 
 Unidentified  | 
| 
 S41  | 
 Unidentified  | 
| 
 BREAK SEND  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Bn [cmds]  | 
| 
 Default:  | 
 3  | 
| 
 Range:  | 
 1-9  | 
| 
 Unit:  | 
 .1 second  | 
| 
 Description:  | 
 Sends break to modem  | 
| 
 BREAK TYPE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Kn [cmds]  | 
| 
 Default:  | 
 Unidentified  | 
| 
 Range:  | 
 Unidentified  | 
| 
 Description:  | 
 Configures action of break signal  | 
| 
 DIAL  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] D<#> [cmds]  | 
| 
 Description:  | 
 Dials telephone number according to any modifiers included in the string  | 
| 
 Note:  | 
 Any combination of modifiers can be used to produce the desired dial functions in sequence.  | 
| 
 Modifier  | 
 Function  | 
| 
 L  | 
 Re-dial last number  | 
| 
 P  | 
 Pulse dialing enabled  | 
| 
 R  | 
 Command accepted, not acted upon.  | 
| 
 S=n  | 
 Dial stored telephone number n (n=0-3)  | 
| 
 T  | 
 Tone dialing enabled  | 
| 
 W  | 
 Dialing resumed following dial tone detection  | 
| 
 ,  | 
 Dialing paused for amount of time specified in S8 register  | 
| 
 @  | 
 Wait for 5 seconds of silence  | 
| 
 ;  | 
 Modem returned to command state after dialing  | 
| 
 !  | 
 Modem commanded to go off-hook for specified time before returning on-hook.  | 
| 
 ^  | 
 Calling tone enabled  | 
| 
 COMPRESSION  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Cn [cmds]  | 
| 
 Description:  | 
 Selects data compression  | 
| 
 Command  | 
 Function  | 
| 
 %C0  | 
 Data compression disabled  | 
| 
 %C1  | 
 MNP5 enabled  | 
| 
 %C2  | 
 V.42bis enabled  | 
| 
 í %C3 | 
 MNP5 and V.42bis enabled  | 
| 
 CONNECT MODE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Nn [cmds]  | 
| 
 Description:  | 
 Controls the type of connection the modem will operate in  | 
| 
 Command  | 
 Function  | 
| 
 \N0  | 
 Normal mode enabled  | 
| 
 \N1  | 
 Direct mode enabled  | 
| 
 \N2  | 
 Reliable mode enabled  | 
| 
 í \N3 | 
 Auto-reliable mode enabled  | 
| 
 \N4  | 
 V.42 reliable mode enabled  | 
| 
 \N5  | 
 MNP reliable mode enabled  | 
| 
 FLASH DIAL MODIFIER TIME  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S29=n [cmds]  | 
| 
 Default:  | 
 0  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 .01 second  | 
| 
 Description:  | 
 Time the modem will go on-hook upon receiving the ! dial modifier in dial string. S29=0 will disable.  | 
| 
 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:  | 
 Read-only Register  | 
| 
 Format  | 
 AT [cmds] S39? [cmds]  | 
| 
 Description:  | 
 Displays the current flow control  | 
| 
 Value  | 
 Meaning  | 
| 
 0  | 
 Flow control disabled  | 
| 
 í 3 | 
 RTS/CTS flow control enabled  | 
| 
 4  | 
 XON/XOFF flow control enabled  | 
| 
 5  | 
 Transparent XON flow control enabled  | 
| 
 6  | 
 Transparent XON/XOFF flow control enabled  | 
| 
 FLOW CONTROL CHARACTER - XOFF  | |
| 
 Type:  | 
 Register  | 
| 
 Format:  | 
 AT [cmds] S33=n [cmds]  | 
| 
 Default:  | 
 19  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 ASCII  | 
| 
 Description:  | 
 Sets the character used to represent XOFF  | 
| 
 FLOW CONTROL CHARACTER - XON  | |
| 
 Type:  | 
 Register  | 
| 
 Format:  | 
 AT [cmds] S32=n [cmds]  | 
| 
 Default:  | 
 17  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 ASCII  | 
| 
 Description:  | 
 Sets the character used to represent XON  | 
| 
 INACTIVITY TIMER  | |
| 
 Type:  | 
 Register  | 
| 
 Format:  | 
 AT [cmds] S30=n [cmds]  | 
| 
 Default:  | 
 0  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 10 seconds  | 
| 
 Description:  | 
 Sets the length of time that the modem does not receive information before it disconnects. S30=0 will disable timer.  | 
| 
 LINE SIGNAL LEVEL  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] %L [cmds]  | 
| 
 Description:  | 
 Returns a value which indicates the received line signal level (-dBm)  | 
| 
 LINE SIGNAL QUALITY  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] %Q [cmds]  | 
| 
 Description:  | 
 Returns a value which indicates line signal quality  | 
| 
 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  | 
| 
 í \A1 | 
 MNP block size is 128 characters  | 
| 
 \A2  | 
 MNP block size is 192 characters  | 
| 
 \A3  | 
 MNP block size is 256 characters  | 
| 
 MNP - STREAM/BLOCK MODE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Ln [cmds]  | 
| 
 Description:  | 
 Selects the transfer mode for MNP link  | 
| 
 Command  | 
 Function  | 
| 
 í \L0 | 
 Stream mode for MNP enabled  | 
| 
 \L1  | 
 Block mode for MNP enabled  | 
| 
 REPORT INFORMATION  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] In [cmds]  | 
| 
 Description:  | 
 Displays information requested  | 
| 
 Command  | 
 Function  | 
| 
 I0  | 
 Reports 3-digit product code  | 
| 
 I1  | 
 Reports ROM checksum  | 
| 
 I2  | 
 Tests and reports ROM checksum  | 
| 
 I3  | 
 Reports firmware revision code  | 
| 
 I4  | 
 Reports faxmodem identifier string  | 
| 
 I5  | 
 Reports country code  | 
| 
 I6  | 
 Reports data pump model and revision code  | 
| 
 SLEEP TIMER  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S24=n [cmds]  | 
| 
 Default:  | 
 0  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 1 second  | 
| 
 Description:  | 
 Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode.  |