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Specifications
- USB 2 compliant (full-speed (12 Mbps)).
- AUTO direction for RS485 (hardware, baud rate independent).
- Interface Connector: DB-9, Male (default mode RS485).
- Optional USB 5 V available on external pin.
- Internal load termination (enabled on connector).
- Data format supported: 8, 7, 6 and 5-bit.
- Stop bits: 1, 1.5 and 2.
- Standard baud rates available: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800 and 921600.
- On board FIFO: 576 bytes receive and 640 bytes transmit available.
- USB powered.
- Default transmitter/receiver driver is 3.3 volt, however it is capable of functioning on 5 volt networks.
- Serial number specifies a unique ID number that allows multiple units to be used on the same platform, thus registering N comports on the same host.
- Can be used on a USB hub to extend the number of serial links on the host.
- Transmit and receive activity is shown on LED's.
- Receiver is optically isolated, hence quasi opto isolated. Connect Two units for total isolation.
- Protection on both transmit and receive channels.
- User configurable (422/485 mode) with link on connector.
- Pin definition on hardware label.
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Special features available on request:
Virtual COM Port drivers:
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- Works with standard terminal programs (eg. Hyper Terminal).
- Drivers available for Windows 2000/XP, Mac OS-9, Mac OS-X.
- Drivers available for Linux 2.4, Linux ≥ 2.6.18 internal kernel driver.
- Special programs, dll's or libraries can be custom made for Linux and XP.
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Other
- Linux test program available (2.6.18) (QT source).
- Sniffer cables available (Manufactured on request).
DB-9 pin outs (Compatible with normal RS422/RS485 converters, direct replacement)
- 1. B-RS485 or TXB-RS422.
- 2. A-RS485 or TXA-RS422.
- 3. RXA-RS422.
- 4. GND.
- 5. GND.
- 6. RXB-RS422.
- 7. RS485 Termination (220 Ω), if required connect to pin 2.
- 8. Select RS422, default (RS485) open, for RS422 operation connect to pin 4.
- 9. RS422 Receive termination (220 Ω),if required connect to pin 6.
- Please note that no pre-bias is supplied on the unit.
- If required the user can populated his own termination and or bias inside the DB-9 shell.
Hardware Notes
- No pre-programming, build in hardware handshake, this version operate with hardware handshake enabled (National Instruments requirement).
- Direct replacement for the historically RS422/RS485 Converter.
Order Information Product Number:
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Immediate email quotes is send to registered users, if available.
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