Lucent Technologies DEFINITY Business Communications System And GuestWorks Instructions Manual

DEFINITY® Business Communications System and GuestWorks® Issue 6 
Overview  555-231-208  Issue 1
April 2000
Introduction 
2-15 Reliability and recoverability 
2
Reliability and recoverability
Much of the system’s reliability and recoverability can be attributed to the switch 
architecture and the power of the system software. The distributed processor 
architecture provides subsystem processors on each circuit pack. A standard 
maintenance routine is conducted automatically by the system, as are periodic...

DEFINITY® Business Communications System and GuestWorks® Issue 6 
Overview  555-231-208  Issue 1
April 2000
Introduction 
2-16 Reliability and recoverability 
2
Figure 2-7 shows an example of a high-reliability, directly-connected system.
Figure 2-7. High-Reliability, Directly-Connected System 1) Processor Port Network 3) Control Carrier
2) Expansion Port Network 4) Duplicate Control Carrier
1
22
3
4
cydfhire EWS 050699 

DEFINITY® Business Communications System and GuestWorks® Issue 6 
Overview  555-231-208  Issue 1
April 2000
Introduction 
2-17 Reliability and recoverability 
2
Figure 2-8 shows an example of a high reliability center stage system, where the 
Center-Stage Switch is connected to both the active and standby control carriers.
Figure 2-8. High-Reliability, Center Stage System1) Processor Port Network 4) Control Carrier
2) Expansion Port Network 5) Duplicate Control Carrier
3) Center-Stage Switch 

DEFINITY® Business Communications System and GuestWorks® Issue 6 
Overview  555-231-208  Issue 1
April 2000
Introduction 
2-18 Connections to the system 
2
Connections to the system
The system can be connected to communications paths that transmit voice and 
data signals between the system and a Central Office and/or other systems. The 
system can also be connected to public and private networks. Other possible 
connections are as follows:
nData Communications Equipment, such as a data module, which...

DEFINITY® Business Communications System and GuestWorks® Issue 6 
Overview  555-231-208  Issue 1
April 2000
Introduction 
2-19 Connections to the system 
2
Figure 2-9. System Connections1) Wireless System 8) Digital Facilities
2) Property Management System 9) Analog Facilities
3) Business Telephone 10) Data Terminals
4) Telephone with Data Module 11) Host Computer
5) Data Terminal 12) Data Terminal
6) Voice Messaging System 13) Management Terminal
7) Outside Private Line Data 
Transmission Equipment14)...

DEFINITY® Business Communications System and GuestWorks® Issue 6 
Overview  555-231-208  Issue 1
April 2000
Introduction 
2-20 Connections to the system 
2
Adjunct connections
In addition to station connections, the system includes many connections for 
adjunct (subordinate, related) equipment. The system provides a TCP/IP link 
adjunct interface. This interface supports a variety of adjuncts, including the 
I
NTUITY AUDIX Messaging System.
The system provides two Electronic Industries Association (EIA)...

DEFINITY® Business Communications System and GuestWorks® Issue 6 
Overview  555-231-208  Issue 1
April 2000
Introduction 
2-21 Connections to the system 
2
Telephone connections
All signals between analog telephones and the system are in analog form over a 
pair of wires. Digital telephones (such as the 6400-series telephones) using the 
Digital Communications Protocol (DCP) employ digital transmission for integrated 
voice and data signals and control signals. Transmission is over a connection...

DEFINITY® Business Communications System and GuestWorks® Issue 6 
Overview  555-231-208  Issue 1
April 2000
Introduction 
2-22 Connections to the system 
2
Power
Depending upon the cabinet style, the system can accept a variety of AC or DC 
power depending on your region. The system can operate without requiring a 
power transformer in almost any part of the world.
During a power outage, battery backup differs depending on the cabinet style. 
See the 
DEFINITY ECS System Description for more information. 

Industry Applications 
3-1 Overview 
3
DEFINITY® Business Communications System and GuestWorks® Issue 6 
Overview  555-231-208  Issue 1
April 2000
3
Industry Applications
Overview
The applications presented in this chapter explain how DEFINITY BCS and 
GuestWorks meets communications challenges in various industries. Though the 
specific requirements of the industries vary, the general information presented 
here can help to generate ideas. Even if none of the applications precisely match 
your...

DEFINITY® Business Communications System and GuestWorks® Issue 6 
Overview  555-231-208  Issue 1
April 2000
Industry Applications 
3-2 Education (K – 12 and small colleges) 
3
Education (K – 12 and small colleges)
Municipal school districts and small colleges seek to:
nEnsure reliable telephone service
nCoordinate information and services
nCommunicate easily with the outside world
nReduce costs but still serve student needs
nPlan for expansion and innovation.
Ensure reliable telephone service 
The system...