Description
• Compliant with RoHS and WEEE directives
• Each port individually configurable for RS-232, RS-422, or RS-485
• 16C864 buffered UARTs with 128-byte FIFOs
• Data rates to 921.6K bps
• Universal Bus compatible (3.3V and 5V signaling)
• Requires 3.3V power on PCI bus
• Automatic RS-485 enable/disable
• Included 36″ cable terminates to eight DB9M connectors (Item# CA145)
The 7804 is a multi-interface, eight port, Universal Bus (3.3V or 5V) compatible PCI adapter. Offering eight individual field-selectable RS-232, RS-422, or RS-485 channels, the 7804 delivers ultimate flexibility for expanding serial communications.
The 7804 supports standard PC data rates and boasts a top speed of 921.6K bps. The board is designed using the XR16C864 UART, which provides a 128-byte FIFO, eight times larger than boards designed with 16C550 compatible parts. The larger buffers allow error free operation even in high-speed applications. In RS-485 mode the board provides automatic control of the RS-485 driver enable for trouble free network master arbitration. Additionally, RS-485 network termination, critical to robust multi-drop communication, can be selectively added to the circuit via DIP-switches.
Specification
- Communications Chip
- 16C864
- Electrical Interface
- RS-232, RS-422, RS-485
- Humidity Range
- 10 – 90% Relative Humidity, Non-Condensing
- Host Interface(s)
- PCI
- Max Data Distance
- 4000 feet
- Max Data Rate
- 921.6K bps
- Operating Temperature
- 0°C to 70°C (32°F to 158°F)
- PC Bracket
- Standard Height
- # of Ports
- 8
- RoHS Compliant
- Yes
- Serial Connector(s)
- DB9M
- Storage Temperature
- -50°C to 105°C (-58°F to 221°F)
- UART Series
- 850 UART
Filter criteria
- Card Type
- Serial
- Card Form Factor
- PCI
- Target Interface
- Serial
- RS-232
- 08
- RS-422
- 08
- RS-485
- 08
- Manufacturer
- SEALEVEL
- Status
- Standard
- Customs Tariff Number
- 84733020
- WEEE Number
- DE76344510