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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
General Information
2-19Data Terminals
2
Data Terminals
A data terminal is a workstation at which data is entered and retrieved; it
communicates through lines, trunks, switches, and data modules with data
endpoints such as computers and other data terminals. Some data terminals
contain built-in voice capabilities similar to digital voice terminals. For detailed
information on buttons, lights, and tones, refer to the general information about
voice terminals at beginning of this section.
The following data terminals are available with System 75, System 85, and
DEFINITY G1 and G2:
■ Personal Terminal 510A (no longer manufactured)(DA)
■ Personal Terminal 510D (no longer manufactured)(DA)
■ Model 513 Business Communications Terminal (BCT) (no longer
manufactured)(DA)
■ Model 515 BCT (no longer manufactured)(DA)
■ Model 610 BCT
■ Model 615 MT
The 513 BCT, 610 BCT, and 615 MT, in addition to being optional units of
peripheral equipment, are used in DEFINITY G1 and System 75 as System
Access Terminals (SATs). The SAT is dedicated to system administration and
maintenance and is located in or nearby the equipment room with the DEFINITY
G1 or System 75. This manual does not cover the 513, 610, or 615 as an SAT but
only as peripheral data terminals used for sending and receiving data calls.
Technical Specifications
Technical specifications are provided for the call progress tones, external ringing
tones, and indicator light signals that are used with a DEFINITY G1, G2, and G3,
a DEFINITY ECS, System 75, and System 85.
Call Progress Tones
The following call progress tones are generated by the system:
Table 2-3. Call Progress Tones
Tone Frequency Pattern (In ms)
Ringback Tone 440 Hz + 480 Hz 1000 on, 3000 off; repeated
Bridging Warning
Tone
*
440 Hz 500 on, 15000 off; repeated
Busy Tone 480 Hz + 620 Hz 500 on, 500 off; repeated