Permanent Applications - Avaya 6424D+M User Manual

DEFINITY Communications System
DEFINITY High Speed Link
User´s Guide
PERMANENT
APPLICATIONS
V.35
HSL
Front
End
Processor
V.35
HSL
In a permanent application, the switch establishes and maintains a
permanent connection between endpoints over dedicated (nailed-
up) DS0s on a private T1 or through a private line network service
such as ACCUNET Spectrum of Digital Services (ASDS).
Permanent applications include: Cluster Controllers (CC) to
Front-End Processor (FEP) connections and LAN bridging. An
example of a permanent application is shown in Figure D-4.
Cluster
Controller
Private
DS1
TN767
Network
DCP
TN754
Tone
TN756
Detector
DCP
DEFINITY G3
FIGURE D-4
Permanent (Private Line) Applications
There are two types of permanent connections:
PBX to PBX — In this configuration, a permanent connection is
established between two PBXs. The PBX may serve as a
tandem node or as a terminating node with HSLs connected to
each data endpoint. The PBX is also capable of monitoring the
DS0 for on/off hook signaling information to determine if the
connection has been dropped.
Appendix D: Applications and Switch Administration
V.35
Access
DSU
Endpoint
DDS56
DS1
Line
ANN11E
Tone
SN255
Detector
DCP
SN270
DEFINITY G2
Page D-29
V.35
Cluster
HSL
Controller