ACCULINK 316x DSU/CSU
Glossary-8 January 1997 3160-A2-GB21-50
RLB Repeater Loopback. Loops the signal being sent to the network back to the DTE
Drop/Insert and data ports after it has passed through the framing circuitry of the
DSU/CSU.
Rlpbk branch Remote Loopback branch of the DSU/CSU menu tree.
router A device that connects LAN segments.
RS-232 An EIA standard for a low-speed, 25-position, DCE/DTE interface.
RS-232-like MIB Defines objects for managing RS-232-type interfaces and supports synchronous
data ports and management communication ports on the DSU/CSU.
RS-449 An EIA standard for a general-purpose, 37-position, DCE/DTE interface.
RTS Request-to-Send. V.24 circuit 105.
RX Receive. To obtain signals that have been transmitted.
RXC Receive Clock. V.24 circuit 115.
RXD Receive Data. V.24 circuit 104.
SDCP Shared Diagnostic Control Panel.
self-test A test that checks most hardware components when power is applied to the device
or a reset is initiated.
server A device that offers a specific service, such as database management, to a client.
SES Severely Errored Seconds. For T1 data, seconds with 320 or more CRC6 errors or
errored frame alignment signals.
Set command (SNMP) Write access to SNMP MIB objects.
SLIP Serial Line Internet Protocol. A link layer protocol used by SNMP.
SNMP Simple Network Management Protocol. A generic network management system
that allows the device to be managed by any industry-standard SNMP manager.
Stat branch Status branch of the DSU/CSU menu tree.
STest branch Self Test Health branch of the DSU/CSU menu tree.
StEvnt Status Event Register. Records the occurrence of certain alarm conditions.
subnet An IP addressing standard in which a portion of the host address can be used to
create multiple network addresses that are logically a subdivision of the network
address.
subnet mask An integer used with the IP address of the host to determine which bits in the host
address are used in the subnet address.
synchronous data Data transmission that is synchronized by timing signals. Characters are sent at a
fixed rate.
TCP/IP Transmission Control Protocol/Internet Protocol. The dominant protocol in the
worldwide Internet.
Telnet A TCP/IP protocol that allows you to access a remote device as if you were
connected locally to that device.
time slot The allocated DS0 channel slot when DS0 channels are combined to form an
aggregate bit stream.
trap (SNMP) A notification message to the SNMP manager when an unusual event occurs on a
network device, such as a reinitialization.
TStat branch Test Status branch of the DSU/CSU menu tree.
TX Transmit. To send signals from a device.