Configuration File SelectionUse the following steps to select a configuration file:1. Is your modem an IBM 7852-400?If Yes, use modem configuration file modem_m0.cfg and go to step 7.Note: The IBM 7852-400 modem has DIP switches on the right side of the unit. See “IBM 7852-400DIP Switch Settings” on page 437 for the correct switch settings.If No, continue with step 2.2. Is your modem an IBM 7857-017?If Yes, use modem configuration file modem_m1.cfg and go to step 7.Note: The IBM 7857-017 modem has two telephone line connections on the back of the unit. One ismarked LL (for Leased Line), and the other is marked PTSN (for Public Telephone SwitchedNetwork). The service processor expects to use the modem on the public network, so thetelephone line should attach to the PTSN connector.If No, continue with step 3.3. Does your modem respond to the extended command set (prefixed with &)?If Yes, go to step 5.If No, continue with step 4.4. Does your modem respond to:v ATZ reset commandorv ATZn reset commands, where n can be 0, 1, and so on?If ATZ, configuration file modem_z.cfg is recommended.If ATZn, configuration file modem_z0.cfg is recommended.Go to step 7.5. Does your modem command set include a test for V.42 error correction at the remote modem (oftencalled “Auto-Reliable Mode”)?If Yes, disable this test. You can use sample configuration files /usr/share/modem_m0.cfg or/usr/share/modem_m1.cfg as models to help you create a file for your particular modem. See“Customizing the Modem Configuration Files” on page 436 for more information. Go to step 7.If No, go to step 6.6. Does your modem respond to:v AT&F reset commandorv AT&Fn reset commands, where n can be 0, 1, and so on?If AT&F, configuration file modem_f.cfg is recommended.If AT&Fn, configuration file modem_f0.cfg or modem_f1.cfg is recommended, depending on whichprovides the hardware flow control profile.7. You have completed selection of the configuration file.If your modem configuration selection is not available in the Service Processor Modem ConfigurationMenu, you must access it through the Configure Remote Maintenance Policy Service Aid.If you find it necessary to adjust any of these configuration files, use the manual provided with yourmodem to accomplish that task. It is recommended you select settings that enable hardware flowcontrol and respond to DTR.Note: Some older modems do not respond to the X0 or &R1 commands. Edit out these commandsfrom the modem configuration file if yours is such a modem. See your modem manual for moreinformation.434 EserverpSeries 615 Service Guide
