Lantronix Hub manual MSS4 Connectors, RS-232 DB9 Connector, RS-485 DB9 Connectors

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MSS User Guide

7: Pinouts

Figure 7-2: DB25 Serial Connector

The dual DB25 port can be used for either an RS-232 connection or an RS-485 connection. Do not attempt to connect both interfaces at the same time. The MSS-VIA drives TX on both interfaces simultaneously, but only enables RX on the selected interface.

For more information, see

RS-485Configuration.

RS-232 DB9 Connector

The MSS DB9 connector provides an RS-232 DTE serial port. The default serial port settings are 9600 baud, 8 bits, no parity, and 1 stop bit. Starting with firmware version 3.6/8, you can change these settings.

Figure 7-3: DB9 Serial Connector

MSS4 Connectors

Serial Connectors

The MSS4 has four serial ports. The MSS4 models have DB9 connectors.

The following sections show the pin connections of the MSS4 DB9 connectors, which provide dual RS-232/RS-485 serial ports.

RS-485 DB9 Connectors

The MSS4 DB9 connector provides an RS-485 serial port.

7-2

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Contents MSS User Guide Technical Support Lantronix Corporate HeadquartersSales Offices Disclaimer & Revisions Contents Configuration Using the MSS Compliance and Warranty Information Introduction to the MSS Family MSS Family FeaturesProtocols About The Documentation TermsMSS User Guide Introduction to the MSS Family MSS-VIA Installation InstallationComponents MSS-VIA LEDs MSS-VIA Rear PanelExample Wired Network Layout Installation ProcedureMSS User Guide Installation Pinging the MSS Power power cube adaptor MSS-VIA SpecificationsTemperature HumidityMSS4 Components MSS4 InstallationMSS Connected to a Serial Device and Network MSS4 LEDsMSS User Guide Installation MSS4 Specifications 10 MSS100 Front Panel MSS100 Installation12 MSS Network Layout MSS100 LEDs13 MSS Connected to Serial Device and Ethernet 14 Pinging the MSS MSS100 SpecificationsPrivileged User Status Getting StartedUsing EZWebCon IP Address ConfigurationUsing a Web Browser From the Action menu, select Assign IP AddressEntering ARP and Ping Unix Using ARP and PingUsing the Serial Console Using a DHCP, BOOTP, or Rarp ReplyLogin Password Incoming LoginsIncoming TCP/IP Logins Web Browser Login and ConfigurationEZWebCon Login and Configuration Serial Port LoginsRlogin TelnetRemote Console Logins Changing the Login PasswordIncoming LAT Logins Logout Outbound ConnectionsRebooting the MSS ConfigurationNormal Reboot OverviewFactory Defaults Protocol ConfigurationTCP/IP Configuration Name Server Specifying a Gateway for MSS-VIA and MSS4Supported Mibs IP SecurityConfiguring Snmp IPX NetWare ConfigurationSnmp Trap Support Routing and EncapsulationLoadhost Internal Network NumberService Groups LAT ConfigurationCircuit Timer Server IdentificationTwo-Wire Mode RS-485 Configuration22 Enabling Two-Wire RS-485 Mode for MSS4 Four-Wire ModeTermination TXDriveAccess Mode Serial Port ConfigurationAutostart Serial Data 36 Configuring an Autostart Character for MSS-VIA and MSS4Character Size, Parity, and Stop Bits Baud RateFlow Control Modems and Modem SignalingModem Control Signal CheckingDSRLogout DTRWait LogoutsPreferred Host ConfigurationDedicated Host Region Enabling 802.11 NetworkingMAC Address Extended Service Set ID EssidSetting the WEP Key and Index Number Network ModeChannel Modem Cards Formatting an ATA Flash CardEncrypted Traffic Outgoing Calls Incoming CallsIncoming Connections Using the MSSSocket Connections Outbound Connections Interactive ConnectionsTCP/IP Socket Connections Backward, Forward, and Switches Break Key and Local SwitchSession Control Disconnect and Resume Status DisplaysSession Limits ShowSerial Tunnel UDP Configuration TCP ConfigurationEnabling Multihost Mode Multihost ModeAdding Hosts Modem Emulation ModeRemoving Hosts 17. Enabling Modem Mode for MSS100 Modem Mode CommandsWiring Requirements Sequential Hostlist ModeCOM Port Redirector Power-up Troubleshooting TroubleshootingPower-up Problems and Error Messages Bootp Troubleshooting Dhcp TroubleshootingDhcp Troubleshooting Bootp TroubleshootingTftp Troubleshooting Rarp TroubleshootingModem Configuration Checklist Rarp TroubleshootingChange Bootp Enabled, Disabled Entering Commands at the Boot PromptInit Change Hardware Change Dhcp Enabled, Disabled Change Ipaddress ipaddress Change Loadhost ipaddressTechnical Support Europe, Middle East, and Africa Technical SupportMSS VIA Connectors Ethernet ConnectorSerial Connectors PinoutsRS-232 DB9 Connector MSS4 ConnectorsRS-485 DB9 Connectors DB25 Connector MSS100 ConnectorsRS-232 DB9 Connectors DSR Data Signal Ready versus CD Carrier Detect Modem WiringDTR Data Terminal Ready Obtaining Software Updating SoftwareReloading Software Via the Web Via FTPFTP Flash ROM Troubleshooting Troubleshooting Flash ROM UpdatesNetWare MSS User Guide Updating Software Compliance Information Compliance and Warranty InformationWarranty