Paradyne Compshere 3000 Series, Руководство по установке

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COMSPHERE 3000 Series Carrier
Glossary-8 July 1999 3000-A2-GA31-D0
SDCP Shared Diagnostic Control Panel. A feature that allows carrier-mounted devices to share the
same diagnostic control panel. Installed into one COMSPHERE 3000 Series Carrier, it
controls and monitors the devices in all the carriers in the cabinet. A single SDCP can
control up to 8 carriers, with a total of 128 devices.
SDU Shared Diagnostic Unit. A circuit card installed in Slot 0 of the COMSPHERE 3000 Series
Carrier that provides an interface between an optional SDCP and/or network management
system and the devices in the carrier.
Service Line An additional capability for DDD NIMs. This feature permits an extra dial line to be
connected to a COMSPHERE 3000 Series Carrier. It can be used for NIMs or as a backup
line when the primary line goes down.
SGRD signal ground Signal ground. Pin 7 of an EIA RS-232 interface.
6-port connector module See connector module.
slot The carrier contains seventeen slots for circuit card installation.
speaker panel An optional component that can be installed on the carrier to provide audio monitoring of
any dial/lease modem.
switched 56 kbps
digital service A service provided by Local Exchange and InterExchange Carriers (LECs and IECs) that
allow customers to use high-speed switched digital data capability without having to
subscribe to private network services.
System Controller A DATAPHONE II NMS that uses the DATAPHONE II protocol.
tail circuit See extended network.
TDM Time Division Multiplexer. A device that enables the simultaneous transmission of multiple
independent data streams into a single high-speed data stream by simultaneously sampling
the independent data streams and combining these samples to form the high-speed stream.
tributary A device that receives commands from other devices in the network.
T1 A term for a digital carrier facility used to transmit a DS1 formatted digital signal at
1.544 Mbps.
U-Interface Marks the demarcation line between the customer-provided equipment and the local
telephone company. Interface provides basic rate access.
UL Underwriters Laboratories, Inc. An organization which promotes product safety.
USOC Universal Service Ordering Codes. Generic telephone company service ordering codes.
Vac Volts alternating current.
VT-100 Terminal emulation mode used for asynchronous communications.
V.35 A CCITT standard for a high-speed, 34-position, DCE/DTE interface.