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Cha p te r
F o u r
Custom Field Global Anywhere Time Critical
Devices, Low
Satellite Link
Cost, Long-Life Global Network Data – To
Business
Time
FIGURE 4.20 Global network data fl ow.
Globalstar gateway
FIGURE 4.21 Map indicates areas of potential coverage only. Actual availability in
any particular country may be subject to government verifi cation.
Further Reading
Ames, J. G., “Which Network Is the Right One,” Manufacturing Engineering, 56,
May 1988.
Borggraaf, P., “Semiconductor Factory Automation: Current Theories,” Semiconductor
International, 88, October 1985.
Bux, W., “Local Area Subnetworks: A Performance Comparison,” IEEE Trans.
Communications, COM-29(10):1465 (1981).
Campbell, J., The RS-232 Solution, Sybex, Inc., Alameda, Ca., 1984.
Kaminski, A. M., Jr., “Protocols for Communicating in the Factory,” IEEE Spectrum,
65, April 1986.
