Avaya 6424D+M User Manual page 106

Appendix D: Applications and Switch Administration
Page D-32
Network Access
Requirements
Configuration and
Administration Example
signaling, network initiated loopbacks can not be performed
because the commands would be interpreted as an on-hook
signal and the switch will drop the connection.
In a PBX to an access endpoint connection, the ASDS
connection should be ordered as a 56 or 64 Kbps digital circuit.
This is a clear facility that passes the data transparently.
Because the switch does not monitor the signaling, this allows
the network to perform loopback tests on circuits and
endpoints. Note that signaling can only be disabled using
DSCs or ACs. A PSC can not be used since it does not support
access endpoints.
Access to ASDS can be accomplished using a dedicated DS0 or a
DS1 facility. For endpoints connected directly to the network,
individual DS0s are used and identified as an access endpoint. If a
switch is involved in the connection, a DS1 facility must be used
between the switch and the network. The entire DS1 facility,
however, is not dedicated to ASDS. Other DS0 channels can be
used to access other network services (for example, SDN, SDS).
This ability to split the DS1 access for dedicated and switched
services is known as M24 Office Function or Static Integrated
Network Access (SINA). Currently, SINA is only supported on
robbed-bit DS1 facilities. ISDN PRI facilities cannot have channels
split-off to access ASDS.
In this section, an example of a permanent application will be
presented to describe a typical HSL configuration and the steps
needed to administer this application. The application and
configuration presented here is not the only one available to the
HSL. The intent is to give the reader a basic understanding of
HSL permanent applications.
Application Description
In this application a Front End Processor (FEP) is connected to two
remote Cluster Controllers (CC) each communicating at 56 Kbps.
One CC is co-located with a Generic 2 and the other is at a site
where there is no switch. Rather than ordering a DDS 56 Kbps
private line at each of the switch locations, the DS1 that is in place
can be used. ASDS will be used to provide DS0 connectivity from
the Generic 3 to the Generic 2 and to the other CC via a DSU.
Implementation
The configuration of this FEP/CC application is shown in Figure
D-5. To implement this application, two HSLs (extensions 5000
DEFINITY Communications System
DEFINITY High Speed Link
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