DocumentCode :
1450875
Title :
10 base-T transmission over existing telephone wire within homes
Author :
Kerpez, Kenneth J.
Author_Institution :
Bellcore, USA
Volume :
44
Issue :
4
fYear :
1998
fDate :
11/1/1998 12:00:00 AM
Firstpage :
1250
Lastpage :
1260
Abstract :
Existing in-home telephone wire can be used to create a 10Base-T (10 Mbps Ethernet) customer premises network (CPN) that may be used to connect consumer electronic devices to a hub or to a residential gateway (RG). This paper presents measurements of attenuation and crosstalk performance at 10Base-T frequencies made on four different types of in-home telephone cables, including quad and twisted-pair. Computer simulations use the measured response of the cables to determine the performance of 10Base-T transmitted over them. Simulations are verified by experimental transmission tests using a LAN analyzer. It is found that some of the in-home telephone cables have good performance, which actually exceeds that of the Category 3 wiring specified for 10Base-T use. Some of the cables are not so good and do not even come close to meeting Category 3 specifications. Even so, 10Base-T was able to transmit error-free over 100 meters (328 ft) of the worst cable tested here with no bridged taps. Tree-and-branch wiring has unterminated branches connected to the cable between the transmitter and receiver. These branches are called bridged taps. It was found that 10 Base-T can function with bridged taps shorter than about 8 ft, but bridged taps longer than about 12 ft generally cause 10 Base-T to fail
Keywords :
crosstalk; local area networks; telephone lines; twisted pair cables; 0 to 100 m; 10 Mbit/s; 10Base-T transmission; Category 3 wiring; LAN; attenuation; consumer electronic devices; crosstalk performance; customer premises network; homes; hub; in-home telephone cables; performance; quad; residential gateway; telephone wire; tree-and-branch wiring; twisted-pair; Attenuation measurement; Cables; Consumer electronics; Ethernet networks; Frequency measurement; Roentgenium; Telephony; Testing; Wire; Wiring;
fLanguage :
English
Journal_Title :
Consumer Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0098-3063
Type :
jour
DOI :
10.1109/30.735824
Filename :
735824
Link To Document :
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