Rockwell Automation 1784-PCMK PCMK Communication Card Installation Manual - Manual (Page 13)

Publication 1784-UM519C-EN-P - September 2006
Chapter
1
About the PCMK/B Card
What’s in This Chapter?
Read this chapter to familiarize yourself with PCMCIA technology
and the PCMK card.
What is PCMCIA?
The Personal Computer Memory Card International Association (PCMCIA) is an
organization that defines standards for connecting peripherals to laptop or
notebook computers. The standard ISA, EISA, PCI, and VLB buses are too large for
laptop computers; the PCMCIA PC Card is an accepted notebook standard.
Rockwell Automation is a registered member of PCMCIA and developed the PCMK
Communication Card (cat. no. 1784-PCMK/B) under the PC card 95 standard –
February 1995.
What is a PC Card?
Since personal computers have become smaller, a need for smaller storage media
developed. The PC card is a small form-factor adapter that adds memory, storage,
and I/O capabilities to these smaller computers.
All PC cards measure the same length and width, 54.0 mm x 85.6 mm (2.13 in. x
3.37 in.), but differ in thickness at the center. The thickness at the connector end
and along the rails is the same for all types of PC cards.
Topic Page
What is PCMCIA? 1-1
What is a PC Card? 1-1
What’s the PCMK Card? 1-3
PC Card Architecture 1-2
Enhancements to the 1784-PCMK/ B Card 1-4