Glossary-33
XON, XOFF
Control characters used for flow control.
X.21 bis link
Commonly used in European countries, this is a
pay as you go
link. When a
signal is raised, the modem automatically establishes a link to the remote
side. This link is utilized for Integration unitstoMICOM mux connections.
Zero CIR
A service offered on some public frame relay networks providing no
committed information rate (CIR); you only pay for the bandwidth when
used. Since there is no commitment from the carrier provider, the risk is that
you may not be able to communicate at any time.