Quatech DSE-410D manual Appendix a RS-232, RS-422 Loopback Connections

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10 Appendix A: RS-232, RS-422 Loopback Connections

For Transmit and Receive loopback, connect only those lines.

When Flow Control setting on the Serial device server is set for RTS/CTS, those lines must be looped. Usually DTR and DSR must also be looped. The Flow Control setting for the program must match the Server settings. The CD connection is needed by some terminal programs to simulate Carrier.

The RS-485 Connections are half duplex, either Receive or Transmit, so another half duplex device must be used to check operation.

Document Number: 940-0186-100 – DSE-410D Owner’s Manual

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Contents World Headquarters Model DSE-410DPage Table of Contents Server Name Password Searching LAN for DSE-410DMAC Address Installing Virtual Com Port Page Introduction FeaturesDirect IP Mode Virtual COM ModeCommunication Modes Quick Start Heart Beat ConnectionDhcp Default DSE-410D SettingsSpecifications Dimensions Optional AccessoriesConfiguration Options Light Indication Side View when vertically mountedHardware Ethernet ConnectionTop View Power ConnectionReset Button Mode Switches DSE-410D Server PortDefault Setting RS-485 ModeRS-422 Mode RS-232 ModeSerial Connections RS-232 Connections RS-422 Connections RS-485 Connections Page Install Quatech DSE-410D Software Page Page Page Searching LAN for DSE-410D Using DSE-410D ManagerSearching Server Firmware UpgradeVirtual COM Configuration Uninstall Virtual COMServer Properties Screen ProtocolCOM Name StatusNext chapter Server Properties Configuration Password Server NameIP Address, Netmask, and Gateway Properties Baud Rate Set for each port Link Status Shown in Telnet or Console mode onlyMAC Address Server Serial Port Select 1 orTCP/UDP Port Set for each port Connection Mode Set for each portFlow Control Set for each port TCP/UDP Protocol Set for each portUpdate Page Installing Virtual Com Port Page Page Use Device Manager to View New Ports Page Page Removing a Virtual Com Port Removing the Virtual COM Port using Device Manager Page Page Using Virtual COM or Serial Connections Upgrade ModePage Page Page Console Mode Setup Page Appendix a RS-232, RS-422 Loopback Connections Page DB9M Appendix B RS-232 ConnectionsRS-232 Connections cont’d Appendix C RS-422 Connections Signal Name Direction PinRS-422 Connections cont’d Appendix D RS-485 Connections Page Appendix E Warranty Date of Purchase Model Number