Practical TCP/IP and Ethernet Networking- P62 docx

... > X.21 CCITT standard governing interface between DTE and DCE devices for synchronous operation on public data networks. X.25 CCITT standard governing interface between DTE and DCE device ... applied to a wire in conformance with standards of specifications. VSD Variable Speed Drive. VT Virtual Terminal. = WAN Wide Area Network. Word The standard number of bits that a p...

Ngày tải lên: 04/07/2014, 08:21

Ngày tải lên: 03/07/2014, 19:21

... 208 Practical TCP/IP and Ethernet Networking 13.6.4 Phone to phone Aplio Aplio offers a Voice over IP service by means of a small stand-alone box that inter- connects ... includes SNMP based management and configuration. It uses store and forward IP faxing based on the ITU and IETF standards, which allows fax-to-fax, fax to e-mail and e-mail to fax transmissions. ... ISDN...

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... 236 Practical TCP/IP and Ethernet Networking • Although devices like PLCs are designed to be extremely reliable, HMI and cell controllers are typically general-purpose computer systems, and ... legacy architectures and the factory of the future • Indicate the key elements of the modern Ethernet and TCP/IP architecture 15.1 Background In the past, supervisory control...

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... 256 Practical TCP/IP and Ethernet Networking When a satellite is used in a telecommunications link there is a ... is indicated for this section 18 Satellites and TCP/IP 18.1 Introduction There is a fairly vigorous debate at present over the merits of using TCP/IP over a satellite-based communications ... communications • Applications of satellite systems • Review of TCP...

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... analog communications channel 4 channel bandwidth 6 3dB bandwidth 6 maximum data transfer rate 7 mid-band frequencies 6 data channel 10 digital channel 9 practical channel 7 properties 4 PSTN ... data stream 50 Ethernet signals 50 Manchester encoding scheme 50 single pair Ethernet 176 sites 43 SQE signal 46–7 station 43 Thick Ethernet (10 Base 5) 18 thinwire Ethernet...

Ngày tải lên: 04/07/2014, 08:21

Ngày tải lên: 03/07/2014, 19:21

Ngày tải lên: 03/07/2014, 19:21

Ngày tải lên: 03/07/2014, 19:21

Ngày tải lên: 03/07/2014, 19:21