PC/104 RS-232, RS-422, RS-485 (Software Selectable) Serial Interface

Part: 3540   Model: C4-104.ULTRA

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Description

The 3540 is the first PC/104 serial interface module to provide four software-selectable RS-232, RS-422, or RS-485 ports. RS-232, RS-422, or RS-485 mode may be selected independently via software command for each of the four ports, eliminating the need for setting jumpers or DIP switches. The board is designed using the XR16C864 UART, which provides a 128-byte FIFO, 8 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 C4-104.ULTRA offers automatic control of the RS-485 driver enable for trouble free network master arbitration. Additionally, the C4-104.ULTRA allows RS-485 network termination, critical to robust multi-drop communication, to be selectively added to the circuit via a simple software command.

Note: This item has a minimum order quantity (MOQ) of 25 units. Please contact your sales representative with any questions.

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Additional information

Board Connector

40-Pin Header

Communications Chip

16C864

Electrical Interface

RS-232, RS-422, RS-485

Extended Temperature

Call for Options

Humidity Range

10 – 90% Relative Humidity, Non-Condensing

Host Interface(s)

PC/104

Max Data Distance

4000 feet

Max Data Rate

921.6K bps

Operating Temperature

0°C to 70°C (32°F to 158°F)

# of Ports

4

Software Configurable

Yes

Storage Temperature

-50°C to 105°C (-58°F to 221°F)

UART Series

850 UART

Each port software selectable for RS-232, RS-422, or RS-485
16C864 buffered UART with 128-byte FIFOs
Data rates to 921.6K bps
Automatic RS-485 enable/disable
Termination, pull-ups, and pull-down resistors for each port are software selectable
Right-angle connector available for OEM opportunities, 40-pin vertical header connector standard

Windows Software

Software: SeaCOM - Windows

Linux Software

Software: SeaCOM - Linux

Manual

Manual: 3540

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