3Com VCX V7111 VoIP SIP Gateways User Manual 125Detailed self-test mode is invoked when initialization of the Gateway is completed and if theconfiguration parameter EnableDiagnostics is set to 1 (this parameter can be configuredthrough the INI file). In this mode, the Gateway tests all the hardware components (such asmemory and DSP), outputs the status of the test results, and ends the test. To continueoperational running, reset the Gateway again but this time configure the EnableDiagnosticsparameter to 0.RS-232 TerminalThe VCX V7111 status and error messages can be viewed using a terminal connected to theRS-232 management port.To connect VCX V7111 to a HyperTerminal using a standard RS-232 straight cable (not across-over cable) with DB-9 connectors, connect the VCX V7111 RS-232 port (it is markedRS232) to either COM1 or COM2 RS-232 communication port on the PC. The connectorpinout and gender are shown in Figure 58.Figure 58 RS-232 Cable Wiring235235RDTDGNDTo configure the HyperTerminal, follow these steps:1 On a PC running a Windows operating system, openStart>Programs>Accessories>Communications>HyperTerminal. The ConnectionDescription dialog opens.2 Enter a name for the new connection in the Name field and click OK; the Connect Todialog opens.3 In the Connect To dialog, enter COM1 or COM2, depending on the physical connectionyou performed when connecting the VCX V7111 to the PC with the RS-232 cable; theCOM1/2 Properties dialog opens.4 In the COM1/2 Properties dialog, enter the following settings for the serialcommunication port: Baud Rate: 115,200 bps Data bits: 8 Parity: None Stop bits: 1 Flow control: HardwareDB-9 female for PC DB-9 male for VCX V7111
