Glossary

Supplemental Alert See SAA.

Adapter

switchhook flash Momentary (320 ms to 1 second) on-hook signal used as a control signal. May be directed either to the control unit or to a host switch outside the system. Also called "Recall” or “timed flash.”

synchronous data Method of transmitting a continuous digital data stream in

transmissionwhich the transmission of each binary bit is synchronized with a master clock. See also asynchronous data transmission.

system acceptance test

System Access buttons

Test of all trunks, telephones, data terminals, and features after installation to ensure that they are working correctly.

See SA buttons.

system date and

Date and time that appear on MLX display telephones and

time

SMDR reports.

system programming

Programming of system functions and features that affect

 

most users, performed from an MLX-20L telephone or a

 

PC using SPM. See also extension programming and

 

centralized telephone programming.

System

See SPM.

Programming and

Maintenance

system renumbering Procedure used to change the numbers assigned to telephones, adjuncts, calling groups, paging groups, park zones. remote access, and lines/trunks.

T

T1

Type of digital transmission facility that in North America

 

transmits at the DS1 rate of 1.544 Mbps.

GL–30Maintenance and Troubleshooting

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AT&T 3.0 manual Supplemental Alert See SAA Adapter, System acceptance test System Access buttons, System date, Time