MERLIN LEGEND Communications System Release 5.0
Feature Reference
555-650-110
Issue 1
June 1997
Applications
Page I-73
Ascend Pipeline 25-Px
I
The access device can also be used in applications that require a user to dial into
a server located on a remote LAN, for example, at a branch site accessing
information on a service on the main-site LAN. The far-end device (in this
example, at the main site) must be able to terminate a digital connection and
establish a connection with the Pipeline 25-Px using industry-standard
Point-to-Point Protocol (PPP) and/or Multichannel PPP. Examples of such far-end
devices are remote-node LAN access servers such as those used by Internet
service providers and ISDN routers capable of answering incoming calls.
The Ascend Pipeline 25-Px includes the following components:
■
Pipeline 25-Px, model P25-1S-PX
■
10Base-T Ethernet crossover cable for connecting the access device to the
network card in a user’s PC
■
RJ-38C ISDN cable for connecting the access device to the MLX jack on
the system
■
DB-9 to DB-25 serial cable adapter for use when connecting the Pipeline
25-Px control port to a PC serial port
■
Power supply
Considerations and Constraints
9
One Pipeline 25-Px serves a single PC; it cannot serve multiple PCs or other
terminal equipment such as fax machines or telephones. For 2B data, it requires
both extensions of an MLX extension jack.
Feature Interactions
9
Data hunt groups are not practical where 2B data is required, because two calls
must arrive at the destination video system, and data hunt groups distribute the
two calls that make up a 2B data call to two different data hunt group members.
Account Code Entry
Account Code Entry can be entered for calls made by digital data
workstations.The account code must be entered before the telephone
number.
Authorization Code
Data calls can use authorization calls. If Account Code Entry is also used,
the authorization code must be entered after the account code.
Automatic Route
Selection
Data calls can be made using ARS. To make calls using ARS,
communications devices simply dial the ARS dial-out code (usually
9
)
followed by the telephone number. The data calls
must
be routed through
ARS pools that have only PRI, NI-1 BRI, and/or Switched 56 T1 data
lines. To make a 2B data call, the user must access two separate lines.
Barge-In
Data calls cannot be barged into.