Glossary

register

A part of the modem's memory that contains values that determine

 

the modem's operating characteristics.

Remote

A branch of the Top-Level menu that permits access to the DCP of

 

another modem.

remote loopback

A test that sends a signal to the remote modem to test the local

 

modem, the remote modem, and the circuit between them.

result code

An asynchronous message (in either numbers or words) that the

 

modem sends to the DTE after executing or trying to execute a

 

command.

Return to Dial

A function available when in Dial Backup mode that allows the

 

modem to switch to dial-line operation when currently on leased

 

lines.

RJ11

A type of 6-position jack normally used with permissive dial

 

networks and telephone sets.

RJ21

A type of 50-position jack normally used with permissive dial

 

networks providing the appropriate conductors for up to eight

 

telephone lines.

SDCP

Shared Diagnostic Control Panel. An optional user interface that

 

attaches to the front of a COMSPHERE 3000 Series Carrier. Its

 

functionality is very similar to that of the DCP. Installed in one

 

COMSPHERE 3000 Series Carrier, it controls and monitors

 

modems in all the carriers in the cabinet. A single SDCP can

 

control up to 8 carriers, with a total of 128 modems.

SDU

Shared Diagnostic Unit. A circuit card that plugs into a dedicated

 

slot in the COMSPHERE 3000 Series Carrier to provide the SDCP

 

and network management interfaces to the modems in the carrier.

 

It translates the network management protocol to the devices in the

 

carrier and routes incoming messages to the appropriate slots.

secondary channel

A data transmission channel with a lower signaling rate than the

 

primary channel. It is mostly used for modem diagnostics.

Select key

An SDCP key that allows the selection of a specific card slot in the

 

COMSPHERE 3000 Series Carrier.

serial transmission

A way of transmitting data in which bits are sent sequentially one

 

at a time.

S-Registers

Registers that contain information affecting the modem

 

parameters. All S-Registers must be preceded by the AT prefix.

SubHS

Sub-Network Health and Status. A display of alarm occurrences in

 

downstream modems.

synchronous transmission

Data transmission that is synchronized by timing signals.

 

Characters are sent at a fixed rate. This type of transmission is

 

more efficient than asynchronous transmission.

3910-A2-GN32-30

November 1996

GL-9

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Paradyne 3910 Remote loopback, Result code, Return to Dial, RJ11, RJ21, Secondary channel, Select key, Registers