Cabletron Systems CyberSWITCH CSX400 User Manual

Also see for CyberSWITCH HSIM-W6: Setup guide Configuration guide User guide Installation guide

Contents

Appendix D: Modem Settings for RS-232 Dial-up PPP BackupD-4Local Management User’s GuideCourier V.Everything Modem ConfigurationOriginate (Caller/backup) Side Modem ConfigurationThe caller side must be configured for the following:• DTR off to on transition causes modem to automatically dial previously stored phone number.• Data mode of operation set to call placed using the asynchronous call establishment commandset. Once the call connection is established switch to synchronous mode for transmission.• DSR follows/tracks CD.Use the Extended AT(tention) command set to configure the modem. Assume the default on allsettings that are not specified, including DIP switch settings. Use the following list to perform theconfiguration:To verify that the settings have been saved, power down the modem, power it back up, enter theATI5 command, then the ATI4 command.Command ActionDT The default dialing service setting is pulse. If your dialing service is tone, thiscommand is set to dial the backup site phone number using tone dial.&C1 Carrier on after link established (normally the default setting).&D2 Normal DTR operations. Normally the default setting.&M1 Selects asynchronous command mode/synchronous data mode.&R2 Send data to the DTE device on receipt of RTS (normally the default setting). Sameas h/w flow control enabled.&S4 Simultaneous DSR and CD.S13=8 Bit 3 on. Enables automatic dialing when DTR off-to-on transition. Auto dials thenumber stored in NVRAM at position 0, same as profile zero.&Z0=nnnStore the specified remote phone number including any dial command modifiers,such as the area code in user configuration profile number 1. Up to nine digits can beentered (n= 0 to 9).&W Save the above settings.I5 List the current NVRAM settings to verify the configuration.I4 List the current non-NVRAM settings to verify the configuration.