Verilink AS2000: The Basics (880-502981-001) Product Manual - Manual (Page 162)

Acronyms and Definitions
Glossary-42 Verilink Access System 2000: Basics
repeater loopback (RLB) (local loopback) Connects a Channel Service Unit
(CSU) network output signal back
toward the equipment. It loops the
whole CSU (except the CSU
network input and output ports)
toward the equipment. This
loopback can have an automatic
time-out that releases the
loopback after a pre-selected time.
Use this loopback to test the
network-side repeater and the
network-side critical circuitry in the
CSU.
request to send A data terminal equipment
(DTE) signal used to indicate that
data is ready to transmit. If the
data circuit- terminating
equipment (DCE) is operative and
ready, it responds with CTS (clear
to send).
restoral time In the Verilink IMUX products, the
length of time that alarm
conditions must not occur before
the line is reestablished. Verilink
recommends a time period of
fifteen minutes.
RLB See repeater loopback (RLB)
(local loopback) .
ROM See read-only memory .
route The path that a message or signal
takes.
router A program or device used to
transfer LAN data to and from
other LAN segments or to and
from a WAN based on network
layer addresses.
RTS See request to send .