ZOOM TELEPHONICS, INC.
33.6K EXTERNAL V.34
| 
 Card Type  | 
 Modem, Fax  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 I/O Options  | 
 Line in (RJ-11), line out (RJ-11), DTE (25-pin serial connector)  | 
| 
 Maximum Modem Rate  | 
 33.6Kbps  | 
| 
 Maximum Fax Rate  | 
 14.4Kbps  | 
| 
 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  | 
 V.17, V.21, CH2, V.27ter, V.29, V.33  | 
| 
 Error Correction/Compression  | 
 MNP5, MNP10, V.42, V.42bis  | 
| 
 Fax Class  | 
 Class I & II  | 
| 
 Data Bus  | 
 External  | 

| 
 CONNECTIONS  | ||||||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | |||
| 
 Power jack  | 
 CN1  | 
 Line in  | 
 CN3  | |||
| 
 DTE connector (25-pin serial connector)  | 
 CN2  | 
 Line out  | 
 CN4  | |||
| 
 DIAGNOSTIC LED(S)  | |||
| 
 LED  | 
 Color  | 
 Status  | 
 Condition  | 
| 
 OH  | 
 Unidentified  | 
 On  | 
 Modem is off-hook  | 
| 
 OH  | 
 Unidentified  | 
 Off  | 
 Modem is on-hook  | 
| 
 AA  | 
 Unidentified  | 
 On  | 
 Auto-answer enabled  | 
| 
 AA  | 
 Unidentified  | 
 Off  | 
 Auto-answer disabled  | 
| 
 AA  | 
 Unidentified  | 
 Blinking  | 
 Phone is ringing  | 
| 
 RD  | 
 Unidentified  | 
 On  | 
 Modem is receiving data  | 
| 
 RD  | 
 Unidentified  | 
 Off  | 
 Modem is not receiving data  | 
| 
 TD  | 
 Unidentified  | 
 On  | 
 Modem is transmitting data  | 
| 
 TD  | 
 Unidentified  | 
 Off  | 
 Modem is not transmitting data  | 
| 
 TR  | 
 Unidentified  | 
 On  | 
 DTR signal is high  | 
| 
 TR  | 
 Unidentified  | 
 Off  | 
 DTR signal is low  | 
| 
 CD  | 
 Unidentified  | 
 On  | 
 Carrier signal detected  | 
| 
 CD  | 
 Unidentified  | 
 Off  | 
 Carrier signal not detected  | 
| 
 CS  | 
 Unidentified  | 
 On  | 
 CTS signal is high  | 
| 
 CS  | 
 Unidentified  | 
 Off  | 
 CTS signal is low  | 
| 
 EC  | 
 Unidentified  | 
 On  | 
 Error correction enabled  | 
| 
 EC  | 
 Unidentified  | 
 Off  | 
 Error correction disabled  | 
| 
 DC  | 
 Unidentified  | 
 On  | 
 Data compression enabled  | 
| 
 DC  | 
 Unidentified  | 
 Off  | 
 Data compression disabled  | 
| 
 14.4  | 
 Unidentified  | 
 On  | 
 Modem connected at 14.4Kbps  | 
| 
 14.4  | 
 Unidentified  | 
 Off  | 
 Modem not connected at 14.4Kbps  | 
| 
 V.34  | 
 Unidentified  | 
 On  | 
 Modem not connected in V.34 mode  | 
| 
 V.34  | 
 Unidentified  | 
 Off  | 
 Modem connected in V.34 mode  | 
| 
 FAX  | 
 Unidentified  | 
 On  | 
 Fax connection has been made to remote fax modem  | 
| 
 FAX  | 
 Unidentified  | 
 Off  | 
 Fax connection has not been made to remote fax modem  | 
| 
 MSG  | 
 Unidentified  | 
 On  | 
 Faxes are waiting  | 
| 
 MSG  | 
 Unidentified  | 
 Off  | 
 Faxes are not waiting  | 
| 
 MR  | 
 Unidentified  | 
 On  | 
 Power is on  | 
| 
 MR  | 
 Unidentified  | 
 Off  | 
 Power is off  | 
| 
 MR  | 
 Unidentified  | 
 Blinking  | 
 Modem is in self-test mode  | 
| 
 SUPPORTED COMMAND SET  | 
| 
 Basic AT Commands  | 
| 
 AT, A/  | 
| 
 A, B, E, H, M, O, P, Q, T, V, W, Y, Z  | 
| 
 &C, &K, &M, &T, &V, &W, &Y, &Z  | 
| 
 Extended AT Commands  | 
| 
 %C, %L, %Q  | 
| 
 \A, \B, \G, \L, \N  | 
| 
 )M  | 
| 
 *H  | 
| 
 -K, -Q  | 
| 
 :E  | 
| 
 +MS  | 
| 
 S Registers  | 
| 
 S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22, S23, S24  | 
| 
 S25, S26, S27, S28, S29, S31, S32, S33, S38, S40, S41  | 
| 
 Note: See MHI Help File for full command documentation. | 
For a full command summary, see ZOOM TELEPHONICS, INC. 28.8K EXTERNAL V.34