Manufacturer/Support deltaComm Development, Inc. 507 Airport Boulevard, Suite 109 Morrisville, NC 27560 (919) 460-4556 - Technical Support (919) 460-4531 - FAX (919) 467-1143 - Sales & Info (800) 859-8000 - Sales & Info (919)481-9399 - BBS support@delta.com - Email Support Telix v3.15/v3.21/v3.22 for DOS: DIP Switches: 3, 5 and 8 DOWN (ON) All program options are selected by first hitting "Alt-O" in terminal mode. The below options are then available on a setup menu: CHANGE PORT: Select "Terminal Options", then click "A" to change the COM Port, baud rate and line settings. CHANGE IRQ: Select "Com Port Setup". From here you can modify the port address and IRQ level for each COM Port, from 1-8. INIT STRING: Select "Modem and Dialing", then click "A" to change the init string. Set the init string to ~AT&F&B1&H1&R2&A3&K3X4S11=40^M. Also make sure that option M, "Auto baud detect", is turned OFF. TERMINAL MODE: The program starts in terminal mode. When first installing Telix, you will be prompted for a modem type. All U.S. Robotics high speed modems are listed, so select your model, or the one closest to it. If you are having problems, try re- installing your software, re-selecting your modem type. Note: If you are using Telix v3.21, update to version 3.22. We have found problems with v3.21 dropping DTR and closing the port with 16550 UARTs.