![]() ![]() Routers R1 and R2 are connected with serial cable and PC is connected to R1 via ethernet. If the Tech2 responds with RS-232 Test: LoopBack Not Connected or ADDRESS ERROR - PROCESSOR HALT the chances are high that the MAX202 or the MAX232 is borked, which means replacing the SMD mountec RS-232 communications chip (SOIC type), noted as U202 on the main PCB. The problem with the first cable is when connected to a device on which hardware flow control is enabled software may hang when checking modem signal lines. Now the Tech2 should respond with the following: RS-232 Test: Passed bin file) you need to follow this procedure Insert the loop-back plug into the RJ-45 port. ![]() Depending on the software version there are various options to get to the RS-232 test menu. This topic discusses about the serial interfaces, and how to configure serial line protocol, serial clocking mode, serial signal handling, serial DTR circuit, serial signal polarities, serial loopback capability, and serial line encoding. With a USB to serial adapter, orient the adapter so that the 5 pins are on. Now plug your RJ-45 loop-back adapter into the Tech2 device and navigate to the RS-232 test. Use a paper clip (or other conductor) to perform loopback and jumper pins 2. Download a serial terminal application like RealTerm to diagnose the loop-back functionality. Test the plug by attaching it to the serial port of the Techline computer or into a certified Tech2 USB-2-serial adapter. Connect a 12vdc power source to the TECH2.Attach (p/n 3000109) loop back adapter to the other end of the cable.Attach (p/n 3000095) cable to the VCI in the bottom on the TECH2.For cable: Testing Serial Application with Virtual Ports Click the Open. Gold-plated connectors and contacts provide superior conductivity. Superior molded cables with foil-shielding offer maximum EMI/RFI protection. a Loop back connector is used to ascertain whether the serial port of the. (1.83 m) cable has a DB9 female connector on each end. A loopback connector usually consists of a connector without a cable and. Attach (p/n 3000112) RS232 eight-pin loop back connector to left side port of Tech2. You could also perform a similar (yet more The parallel loopback plug is a 25. Null modem cables and adapters connect two serial devices that require a null modem (cross-wired) configuration. ![]() Tech2 keyboard and RS232 loopback self test
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