Paradyne Comsphere 3510 User Manual page 80

COMSPHERE 3500 Series Data Service Units
Line Signal Detect
(LSD)
Local Area Data Set
(LADS)
Local Loopback
(LL)
modular DSU
network interface
Network Management
System (NMS)
Out-of-Frame (OOF)
Out-of-Service (OOS)
rear connector plate
Received Data (RXD)
Regional Bell Operating
Company (RBOC)
remote (REM)
Remote Digital Loopback
(RL)
Request-to-Send
(RTS)
streaming terminal condition
(STR)
Test Pattern
(TP)
Transmitted Data (TXD)
Universal Service
Ordering Codes (USOC)
Glossary-2
A signal issued by the DSU that indicates that it is connected to a functional digital
network.
A mode of operation where the control and tributary DSUs are directly connected
via 4-wire, non-loaded metallic pairs rather than via a digital (DDS) network; they
do not pass data through a DDS network.
A type of diagnostic test in which data is looped through a DSU from the DTE
interface and back to the DTE.
A carrier-mounted circuit card that contains "gold finger" contacts that plug into a
rear connector plate. This circuit card type is easily removed from the front of the
carrier without having to disconnect cables. The Model 3511 is a modular DSU.
The digital network vendor's termination device (modular jack, terminal block,
etc).
A generic term for the proprietary network management system associated with
3500 Series DSUs. Includes the DATAPHONE II diagnostic console (DC), network
controller (NC), system controller (SC), and 6800 Series NMS.
A digital network trouble signal that indicates that frame alignment has been lost.
A digital network trouble signal that indicates the terminal or the access line is out
of order.
A plate with two DTE connectors that is used with a Model 3511 DSU (a modular
DSU). The rear connector plate is mounted onto the rear of the carrier. It allows
removal of a Model 3511 DSU without first disconnecting the DTE cables at the
rear of the carrier.
A serial stream of digital information that is received by the DTE.
A Bell Operating Company in a particular geographic area.
Refers to a data service unit (DSU) that is at the other (far) end of a DDS network.
A digital loopback of a remote DSU initiated at the local DSU.
A signal generated by a data terminal equipment (DTE) to indicate that it has data
ready to transmit.
A condition that occurs when a multipoint network tributary DTE holds the RTS
lead on too long.
A test that generates a digital test pattern and verifies that the DSU is receiving the
same pattern.
A serial stream of digital information that is transmitted by a DTE.
Generic telephone company service ordering codes.
July 1999 3510-A2-GN32-70