Search Now

Part# 3540

(C4-104.ULTRA)

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


Be the first to review this product

Call For Price


Don't see what you need? Ask about a custom product.

Where to Buy | Email Sales |
Or call us at: 864.843.4343
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.
Host Interface(s) PC/104
# of Ports 4
Electrical Interface RS-232, RS-422, RS-485
Software Configurable Yes
UART Series 850 UART
Communications Chip 16C864
Max Data Rate 921.6K bps
Max Data Distance 4000 feet
Board Connector 40-Pin Header
Operating Temperature 0 - +70C
Extended Temperature Call for Options
Storage Temperature -50 - +105C
Humidity Range 10 - 90% Relative Humidity, Non-Condensing
• 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






40-Pin IDC to (4) DB9 Cable
Part#CA273
40-Pin IDC to (4) DB9 Cable

$19.95

DB9 207M SMPTE Cable
Part#CA190
DB9 207M SMPTE Cable

$19.95

DB9F to Opto 22 DB9F
Part#DB103
DB9F to Opto 22 DB9F

$9.95

40-Pin IDC to DB37 Cable
Part#CA110
40-Pin IDC to DB37 Cable

$8.95

PC/104 Adapter
Part#CF104
PC/104 Adapter

$90.00

Terminal Block
Part#TB02-KT
Terminal Block

$39.95

40-Pin IDE Ribbon Cable
Part#CA222
40-Pin IDE Ribbon Cable

$8.95

DB37F to (4) DB9M Cable
Part#CA143
DB37F to (4) DB9M Cable

$21.95

PC/104 Hard Drive Adapter
Part#HD104
PC/104 Hard Drive Adapter

$30.00

Terminal Block
Part#TB10
Terminal Block

$39.95

Proudly Made in the USA
© Copyright 1996 - 2017, Sealevel Systems, Inc. All rights reserved.