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104-COM-8S 104-COM-4S 104-COM-2S
PC/104 SERIAL COMMUNICATION
8-, 4-, or 2-Port RS-422/485
K E Y F E AT U R E S :
8, 4 or 2 independent asynchronous serial COM ports Field selectable RS-422 and RS-485,
Programmable individual non-volatile base addresses
and IRQs simplifies installation
Operates as a standard COM port in all operating systems
independent for each port
Auto-RTS feature makes half-duplex RS-485
FAC T ORY OP T IONS:
16850 UARTS with 128-byte FIFO 0 to 70C and -40 to +85C versions available
communications effortless
Speeds up to 921.6K Fixed bias and jumper selectable termination provided
on each transmit and receive channel simplifies cabling
Low power required: +5VDC at 80mA typical
The 104-COM-8S Series are eight, four, or two-port, asynchronous, serial communication boards that support both RS-485 and RS-422 communications. Ideal for POS, gaming systems, machine monitoring, military, and high-density networking applications, these boards may be installed in any system with PC/104 support. Ports are accessed via a 50-pin IDC type right angle connector. This board may be operated in two modes. In the Default Mode, the base address for the board is selected by jumpers and all of the channel addresses are sequential. Alternately, the addresses and interrupts of the individual channels may be stored in non-volatile memory on the board and loaded into programmed logic when the board is initially powered. Individual
interrupts for each channel are programmed into the non-volatile memory in both modes. The boards include a convenient AutoRTS feature, which makes half-duplex RS-485 communications effortless. The 104COM-8S Series offer optional type 16850 UARTS with 128-byte transmit/receive FIFO buffers to protect against lost data in multitasking systems while maintaining 100% compatibility with all operating system COM port drivers. A jumper selection on the board permits baud rate capability up to 921.6K. ADL offers the 104-COM-8S Series in both standard and extended temperature versions ideal for outdoor applications or harsh industrial surroundings.
S O F T WA R E
The 104-COM-8S Series is supported for use in all operating systems and include a free DOS, Linux and Windows 95/98/Me/ NT/2000/XP/2003 compatible software package. This includes sample programs and source code in "C" and Pascal for DOS, and Visual Basic, Delphi, C++ Builder, and Visual C++ for Windows. Also included is a graphical setup program in Windows. Embedded OS support includes Windows XPe and CE. An easy-to-use Windows terminal program simplifies verification of proper operation.
Advanced Digital Logic, Inc. 4411 Morena Blvd. Suite 101 San Diego, CA 92117 Email: sales@adlogic-pc104.com Website: www.adlogic-pc104.com Tel: (858) 490-0597 Fax: (858) 490-0599
104-COM-8S 104-COM-4S 104-COM-2S
PC/104 SERIAL COMMUNICATION
8-, 4-, or 2-Port RS-422/485
Block Diagram & Pin Configuration
RS-422 Functions
GND PORT0 TxPORT0 Rx+ GND PORT1 TxPORT1 Rx+ GND PORT2 TxPORT2 Rx+ GND PORT3 TxPORT3 Rx+ GND PORT4 TxPORT4 Rx+ GND PORT5 TxPORT5 Rx+ GND PORT6 TxPORT6 Rx+ GND PORT7 TxPORT7 Rx+ GND 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 02 04 06 08 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 PORT0 Tx+ GND PORT0 RxPORT1 Tx+ GND PORT1 RxPORT2 Tx+ GND PORT2 RxPORT3 Tx+ GND PORT3 RxPORT4 Tx+ GND PORT4 RxPORT5 Tx+ GND PORT5 RxPORT6 Tx+ GND PORT6 TxPORT7 Tx+ GND PORT7 RxGND
RS-485 Functions
GND PORT0 Tx/RxNC GND PORT1 Tx/RxNC GND PORT2 Tx/RxNC GND PORT3 Tx/RxNC GND PORT4 Tx/RxNC GND PORT5 Tx/RxNC GND PORT6 Tx/RxNC GND PORT7 Tx/RxNC GND 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 02 04 06 08 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 PORT0 Tx/Rx+ GND NC PORT1 Tx/Rx+ GND NC PORT2 Tx/Rx+ GND NC PORT3 Tx/Rx+ GND NC PORT4 Tx/Rx+ GND NC PORT5 Tx/Rx+ GND NC PORT6 Tx/Rx+ GND NC PORT7 Tx/Rx+ GND NC GND
Specifications Ser ial Por ts
Number of serial ports Protocol Maximum baud rate Character length Parity Receiver input sensitivity Common mode voltage range Transmitter output drive capability Base address options Interrupts 8, 4, or 2 RS-422 and RS-485, independent for each port 921.6K 5, 6, 7, or 8 data bits Even, odd, or none 200mV differential input. Lines include factory bias and jumper selectable termination. +12V to -7V 60mA with thermal shutdown. Lines include factory bias and jumper selectable termination. Programmable Individual IRQs for each channel are stored onboard in non-volatile memory Short circuit protection Power required Operating temperature Operating humidity PC/104 bus
Gener al
I/O connections Via a 50 pin IDC type right angle connector. There are four pins per port plus common grounds. All outputs protected against continuous short circuit +5VDC at 80mA typical, all outputs open -40 to +85C optional, all versions 5% to 95% RH, non-condensing 8-bit and 16-bit bus headers are used
Ordering Guide
104-COM-8S 104-COM-4S 104-COM-2S 8-port RS-422/485 4-port RS-422/485 2-port RS-422/485
Advanced Digital Logic, Inc. 4411 Morena Blvd. Suite 101 San Diego, CA 92117 Email: sales@adlogic-pc104.com Website: www.adlogic-pc104.com Tel: (858) 490-0597 Fax: (858) 490-0599
(c) Copyright 2006 Advanced Digital Logic, Inc.
Specifications subject to change without notice.

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