Glossary
TSB-67
C
C-11
TSB-67
Technical Service Bulletin 67. TSB-67 defines the requirements for field testing of
installed, unshielded twisted pair cable links. It describes test configurations, required
tests, pass/fail criteria, accuracy requirements, and other test parameters. TSB-67 is drafted
by a Telecommunications Industry Association (TIA) task force.
Twisted Pair
A cable pair made of two wires that are twisted together to minimize crosstalk to other
cable pairs. The twisting minimizes crosstalk because it causes cancellation of the
electromagnetic fields generated by each wire in the twisted pair.
Unshielded Twisted Pair (UTP)
Twisted pair cable that is not shielded. UTP cable is more susceptible to crosstalk than
shielded twisted pair (STP) cable.
XON/XOFF Flow Control
Transmitter ON/transmitter OFF. A software method of controlling data flow between two
devices. The receiving device tells the sending device to start or stop data transmission by
sending commands over the data transmission line.
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