Contec Co. Ltd., a manufacturer of PC-based instrument interfaces and industrial computers, has developed and commenced sale of the [PIO-32/32RL(PCI)H and PIO-16/16RL(PCI)H PCI Bus, Opto-Isolated, Digital I/O Boards]. These new opto-isolated digital I/O boards for the PCI bus feature reverse-common (current source) I/O circuits and are suitable for use as components in PC-based instrument control systems.  The two new models are digital signal I/O interface boards for the PCI bus and can perform digital I/O of signals in the range 12 to 24VDC. The output circuits use current source (NP) transistor outputs with photo-coupler isolation. The input circuits also use photo-coupler isolation and can connect to current source outputs. The PIO-32/32RL(PCI)H has 32 input and 32 output channels. The PIO-16/16RL(PCI)H has 16 input and 16 output channels.  Although control systems typically use current-sink circuits for control signals because they are easier to use, current-source circuits (as used in these boards) are safer because inputs go to the "OFF state" if disconnected or shorted to common, and the output load goes to the "OFF state" if the output is disconnected or shorted. As a result, use of current source circuits is becoming more common in systems where safety is an important consideration. Also, as these boards are the PCI bus version of CONTEC's ISA bus boards [product code: PIO-32/32RL(PC), and others] with the same I/O specifications, they can be used in PCI bus systems that replace old ISA board based systems.  The two boards are sold complete with driver software for both Windows and Linux [product code: API-PAC(W32)] and application software can be developed using Visual Basic or Visual C++ on Windows, and gcc or Kylix on Linux. PCI Bus, Opto-Isolated, Reverse-Common Digital I/O Board PIO-32/32RL(PCI)H -> Larger image data [ 311KB ] 800 x 596 pix 350dpi

[ Features ] A different external power supply can be used for each common pin as it is shared by 16 channels. The PCI bus (personal computer) and the I/O interface are isolated from each other by an opto-coupler, offering good noise immunity. You can use 16 signal channels of the input signals as interrupt inputs. You can also select the interrupt trigger edge of the input signal. The board has a digital filter feature to prevent noise or chatter from causing erroneous inputs. Up to 35 VDC, 100 mA per signal, max. output. Zener diode connected to output transistors for protection from surge voltage. Overcurrent protective device provided for every eight channels of output transistors.

[ Specifications ]

Item			PIO-32/32RL(PCI)H	PIO-16/16RL(PCI)H
Input	Input format		Opto-isolated input (Compatible with current source output) (Negative logic *1)
	Number of input signal channels		32 channels (all available for interrupts) (One common)	16 channels (all available for interrupts) (One common)
	Input resistance		4.7kΩ
	Input ON current		2.0 mA or more
	Input OFF current		0.16 mA or less
	Interrupt		32 interrupt input signals are arranged into a single output of interrupt signal INTA. An interrupt is generated at the falling edge (HIGH-to-LOW transition) or rising edge (LOW-to-HIGH transition).	16 interrupt input signals are arranged into a single output of interrupt signal INTA. An interrupt is generated at the falling edge (HIGH-to-LOW transition) or rising edge (LOW-to-HIGH transition).
	Response time		200µsec within
Output	Output format		Opto-isolated open-collector output (Current source type)(Negative logic *1)
	Number of output signal channels		32 channels (One common)	16 channels (One common)
	Output rating	Output voltage	35 VDC (Max.)
		Output current	100 mA (par channel) (Max. )
	Residual voltage with output on		0.5 V or less (Output current ≤50 mA), 1.0 V or less (Output current ≤100 mA)
	Surge protector		Zener diode RD47FM(NEC) or the equivalence for it
	Response time		200µsec within
Common	I/O address		8 bits x 32 ports
	Interruption level		1 level use
	Max. board count for connection		16 boards including the master board
	Dielectric strength		500Vrms	1000Vrms
	External circuit power supply		12 to 24 VDC(±10%)
	Power consumption		5VDC 200mA(Max.)	5VDC 150mA(Max.)
	Operating condition		0 to 50®C, 10 to 90%RH (No condensation)
	Allowable distance of signal extension		Approx. 50 m (depending on wiring environment)
	PCI bus specification		32bit, 33MHz, Universal key shapes supported *2
	Dimension (mm)		176.41 (L) x 105.68(H)	121.69 (L) x 105.68(H)
	Weight		215g	130g

*1 Data ¡È0¡É and ¡È1¡É correspond to the High and Low levels, respectively. *2 This board requires power supply at +5 V from an expansion slot     (it does not work on a machine with a +3.3 V power supply alone).

[ Contact ]
U.S.A. (North & South America Sales) CONTEC Microelectronics U.S.A. Inc. 2161 O'Toole Ave., Suite I, San Jose, CA, 95131 TEL: (1)-408-954-7700  FAX: (1)-408-954-7710 E-mail: sales@contecusa.com Web Site: www.contecusa.com PHONE (800)888-8884   Toll Free in the USA	EUROPE CONTEC Microelectronics EUROPE B.V. Binnenweg 4, 2132 CT Hoofddorp, The Netherlands TEL: (31)-23-567-3030  FAX: (31)-23-567-3035 E-mail: sales@conteceu.nl Web Site: www.contec-europe.com
CONTEC GROUPS JAPAN (Headquarters) CONTEC Co., Ltd. 3-9-31, Himesato, Nishi-Yodogawaku, Osaka, 555-0025, TEL: +81-6-477-5219  FAX: +81-6-477-1692 E-mail: intsales@osaka.contec.co.jp Web Site: www.contec.com