PC/104-Based Data Acquisition (DAQ) and Control Products

	104-AIO12-8	104-DIO-48S	104-IIRO-8	104-IIRO-16	104-ICOM-2S	CPUs

A small form factor embedded computer board, typically intended for use in small, space-constrained industrial control or vehicles systems. The standard size of these modules is just 3.550 × 3.775 inches (90 × 96 mm).

The name PC/104 comes from the original IBM computer known as the "PC", and the number of pins used to connect the cards together (104). PC/104 boards are typically stacked on top of each other using stackable bus connectors and four mounting holes at the corner of each module. This provides a much more rugged, embedded computer that can be used in harsh environments such as those found in military or industrial applications.

These rugged, self-stacking modules, allow for an expandable system without the burden of a motherboard or backplane with a fixed number of slots. Additionally, since PC/104 is basically a PC with a different form factor, most of the program development tools used for PCs can be used for a PC/104 system. This reduces the cost of purchasing new tools and also greatly reduces the learning curve for programmers and hardware designers.

Almost anything you can think of is available as a PC/104 module. This includes common functions like CPUs, Analog, Digital, and Serial I/O ports, and Video Controllers; in addition to more special function modules like GPS receivers, vehicle power supplies, and wireless communications. A PC/104 stack can be attached as a component of a larger circuit board, or simply put in a small enclosure for stand-alone operation.

Since PC/104 systems are small and usually have low power requirements, they are traditionally used in applications that simply don't have the space for a standard industrial computer or desktop PC. Some sample applications for this type of technology include the following: military applications, industrial control systems, vehicular systems, data loggers, aviation, vending machines, test equipment, medical instruments, and communications devices.

ACCES offers PC/104 I/O boards that include analog in, analog out, serial RS232, RS422, RS485, digital I/O, relay I/O and more. Additionally, ACCES has partnered with leading PC/104 CPU vendors to offer complete system solutions. By using PC/104, design and application engineers can easily and economically provide numerous configurations to customers requiring the strong and rugged characteristics of PC/104.

Digital I/O PC/104, PC/104-Plus, and PCI-104 DAQ Products

Products	# I/O	Buf	Prog	OPTOs	Relays	CTRS	COS	XT	RoHS
104-DIO-24S	24 I/O	Yes	Yes			Up to 3	Yes	Yes
104-DIO-24E	24 I/O	Yes	Yes			Up to 3		Yes
104-DIO-48S	48 I/O	Yes	Yes			Up to 3	Yes	Yes
104-DIO-48E	48 I/O	Yes	Yes			Up to 3		Yes
P104-DIO-48S PC/104-Plus	48 I/O	Yes	Yes				Yes	Yes
104I-DIO-48S PCI-104	48 I/O	Yes	Yes				Yes	Yes
P104-DIO-48 PC/104-Plus	48 I/O	Yes	Yes					Yes
104I-DIO-48 PCI-104	48 I/O	Yes	Yes					Yes
P104-DIO-96 PC/104-Plus	96 I/O	Yes	Yes				16	Yes
104I-DIO-96 PCI-104	96 I/O	Yes	Yes				16	Yes
104-IIRO-8	8 In/8 Out	Yes		Yes	8		Yes	Yes
104-IIRO-8E	8 In/8 Out	Yes		Yes	8			Yes
104-IIRO-16	16 In/16 Out	Yes		Yes	16		Yes	Yes
104-IIRO-16E	16 In/16 Out	Yes		Yes	16			Yes
104-II32-4RO	32 In/4 Out	Yes		Yes	4		Yes	Yes
104-II-16	16 In	Yes		Yes			Yes	Yes
104-RO-16	16 Out	Yes		Yes	16			Yes
104-IDIO-16	16 In/16 Out	Yes		Yes	16SS*		Yes	Yes
104-IDIO-16E	16 In/16 Out	Yes		Yes	16SS*			Yes
104-IDIO-8	8 In/8 Out	Yes		Yes	8SS*		Yes	Yes
104-IDIO-8E	8 In/8 Out	Yes		Yes	8SS*			Yes
104-IDO-16	16 Out	Yes		Yes	16SS*			Yes
104-IDO-8	8 Out	Yes		Yes	8SS*			Yes
104-IDI-48A	48 In	Yes		Yes				Yes
104-IDI-48AC	48 In	Yes		Yes			Yes	Yes
104-IDI-48B	48 In	Yes		Yes				Yes
104-IDI-48BC	48 In	Yes		Yes			Yes	Yes
BUF = buffered I/O   PROG = programmable I/O   COS = change of state detection XT = extended temperature option   * Solid State