User's Manual
Table Of Contents
- Figures
- Tables
- Using This Guide
- Introduction
- Installation and Hardware
- XPress DR+W
- Using DeviceInstaller
- Configuration Using Web Manager
- Configuration Using Telnet or Serial Port (Setup Mode)
- Setup Mode: Server Configuration
- Setup Mode: Channel Configuration
- Channel 1 (Option 1) and Channel 2 (Option 2)
- Baudrate
- I/F (Interface) Mode
- Flow
- Port Number
- Connect Mode
- Send the Escape Sequence (+++) in Modem Mode
- Auto Increment Source Port
- Remote IP Address
- Remote Port
- DisConnMode
- Flush Mode (Buffer Flushing)
- Pack Control
- DisConnTime (Inactivity Timeout)
- Send Characters
- Telnet Terminal Type
- Channel (Port) Password
- WLAN Settings (XPress DR+W Only)
- Setup Mode: Advanced Settings
- Firmware Upgrades
- Monitor Mode
- Troubleshooting and Technical Support
- Technical Specifications
- Lantronix Cables and Adapters
- Alternative Methods of Assigning an IP Address
- Binary to Hexadecimal Conversions
- Compliance Information
- Warranty
Chapter 3: Installation and Hardware
XPress DR+ User Guide 22
Note: Termination resistors (R = 120 Ohm) are used to match impedance of a
node to the impedance of the transmission (TX) line. Termination resistors
should be placed only at the extreme ends of the data line, and no more than two
terminations should be placed in any single segment of an RS-485 network. The
terminator resistors may not be needed for your application.
Figure 3-5. Termination Resistor for 2-Wire Connection
9-Pin RS-232 to Serial RJ45 Cable (P/N 500-103)
The included Lantronix (P/N 500-103) RJ45-DB9F serial cable assumes you are
connecting a typical PC Com port to the XPress DR+ serial port. This cable is pinned to
provide full serial line control to an RS232 DTE device. Lantronix offers a
comprehensive list of cables and adapters to simplify device connectivity to the XPress
DR+. See Appendix B: Lantronix Cables and Adapters for a full listing.
Figure 3-6. 9-Pin RS-232 to Serial RJ45 (P/N 500-103) Pinout Table
8 CTS (In) 1 RTS (Out)
1 DCD (In) 2 DTR (Out)
6 DSR (In) 3 TXD
2 RXD (In) 4 Signal Ground
5 Signal Ground 5 Signal Ground
3 TXD (Out) 6 RXD
4 DTR (Out) 7 DSR (In )
7 RTS (Out) 8 CTS (In)
DTE, 9-Pin XPress DR+
Female Serial RJ45