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to “talk” to the modem on the correct COM port and IRQ setting (same COM port and IRQ setting as the modem). Your communication software must know which address your modem is using in the system in order to pass data to it. Similarly, IRQ settings must be set correctly to receive data from the modem.
2.Make sure that your modem is initialized correctly. Your modem may have been initialized to not display responses. You may factory-reset the modem by issuing AT&F and press ENTER. The factory default allows the modem to display responses after a command has been executed.
Modem does not dial.
1.Make sure the modem is connected to a working phone line. Replace the modem with a working phone to ensure that the phone line is working.
2.Make sure the phone line is connected to the jack marked “LINE.” Incorrect connection prevents the modem from operating properly. Refer to Section 2.3 for modem connection instructions.
Modem dials but does not connect.
1.Make sure the IRQ setting is identical on both the modem and the software. Modem and software must be configured identically.
2.Make sure the phone line is working properly. Replace the modem with a regular phone and dial the number. If the line sounds noisy, you may have difficulty connecting to the remote device.
Modem makes a connection but no data appears on your screen.
1.Make sure the correct data format (data bits, stop bits, and parity bits) and flow control (RTS/CTS) are being used.
2.Make sure the correct terminal emulation mode is being used (see communication software manual).
High pitch tone is heard whenever you answer the phone.
1.Make sure Auto-Answer is turned off. Your modem is factory configured to NOT auto-answer. Issue AT&F to factory reset your modem.
Modem experiences errors while communicating with a remote modem.
1.Make sure the DTE speed is the same as the modem connection speed when in Direct Mode.
2.Make sure the remote system and your modem use the same communication parameters (speed, parity, etc.).
3.Make sure RTS/CTS hardware flow control is enabled and XON/XOFF software flow control is disabled in the communication software.
4.Make sure the data speed is not faster than your computer's capability. Most IBM compatibles are capable of 19,200 bps under DOS and Windows 3.X. Operating at higher speeds under Windows requires a 486 or faster CPU or Windows 95.
Modem experiences bursts of errors or suddenly disconnects while communicating with a remote modem.
1.Make sure Call Waiting is turned off.
2. Make sure the phone line does not exhibit excess
noise.
Section Seven - Support and Service
In the unlikely event you experience difficulty in
the use of this product, we suggest you: (1) consult the
Troubleshooting section of this guide and (2) consult
with your dealer. To obtain service for this product,
follow the Return Merchandise Authorization Proce-
dure as outlined in the Warranty card.
Appendix A - Specifications
Communication Std. K56Plus (56Kbps), V.34,
V.32bis, V.32, V.29, V.27ter,
V.22bis, V.23, V.22, V.21, V.17,
Bell212/103
Data Compression: V.42bis/MNP5
Error Correction: V.42/MNP2-4
Host Interface: 16 bit PC bus