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Chapter 1
Introduction
1.1 Introduction
1.2 The BX 3000 Board
1.3 Software Components
1.3.1 CT Access
1.3.2 The CT Access DPNSS Service
1.3.3 The CT Access Switching Service
1.4 Installation Summary
1.1 Introduction
This chapter:
Describes the BX 3000 board
Lists and describes the software components you require to build an application using DPNSS dedicated BX 3000 boards
Summarizes the installation procedure
1.2 The BX 3000 Board
A BX 3000 board interfaces one or two E1 carriers of 30 channels with the DPNSS protocol in a PC. You can use these boards as the basis for powerful applications which handle calls on a DPNSS network.
Two families of BX 3000 boards are available (see
Figure 1
):
BX 3000-1E boards each have one E1 trunk interface.
BX 3000-2E boards each have two E1 trunk interfaces.
Each board type is available with:
120 Ohm RJ45 trunk interface connectors, or
75 Ohm BNC connectors.
Each board is designed to reside in a single 16-bit ISA bus slot, for communication with the PC.
Figure 1. BX 3000-1E and BX 3000-2E Boards (RJ45 Connectors)
The BX 3000 can connect to other boards via the
MVIP bus
. The MVIP bus is a high-speed, time-division multiplexed digital telephony "highway" between BX 3000 and AG boards, which allows the boards to share digital voice and data via a 40-conductor ribbon cable strung between them. For example, you can connect two or more BX 3000 or AG-E1 boards for applications that perform trunk-to-trunk switching. You can add analog station interfaces or loop start line interfaces using other AG boards or board sets. You can also use MVIP-compatible products from other manufacturers with the BX 3000 board.
1.3 Software Components
To build a DPNSS application based on BX 3000, you will need the following software components:
The NMS telephony API: CT Access version 2.1 or later
The CT Access DPNSS service
The CT Access Switching service
Each of these components is described briefly in the following sections.
Figure 2
shows how these components interwork with BX 3000 boards:
Figure 2. DPNSS Application Architecture
Natural Media extensions are also available from NMS to support various telephony tasks: NaturalFax, NaturalRecognition, NaturalText. For more information, contact NMS.
1.3.1 CT Access
Your application controls the protocols using function calls from the Natural MicroSystems CT Access application programming interfaces (APIs). These products communicate with all protocol in the same way, making applications protocol-independent.
CT Access is a complete development environment for telephony applications. It provides a standard set of telephony functions grouped into logical services, each having a standard API. CT Access services include call control functions, tone and DTMF generation/detection, voice playing/recording, etc. A powerful MVIP switching service is also provided (see
Section 1.3.3
).
For general information about installing and using CT Access, see your CT Access documentation.
1.3.2 The CT Access DPNSS Service
The CT Access DPNSS service manages BX 3000 boards and DPNSS protocol tasks. To create DPNSS applications that interface with this service, you use the NMS DPNSS service API. This API is very similar to
ADI
, the common CT Access API for managing call control using AG boards. It provides a subset of "ADI equivalent" functions which allow you to manage call control operations and implement DPNSS features. For further information about the CT Access DPNSS service, refer to the
DPNSS Service Developer's Reference Manual
.
1.3.3 The CT Access Switching Service
CT Access includes a service which controls switching on MVIP-compliant devices. You can use this service to make or break connections, send patterns, sample data, etc. This service supports both MVIP-95 and MVIP-90 standards. (For details, see your CT Access documentation.)
1.4 Installation Summary
The following table summarizes the procedure for installing BX 3000 hardware and software, and verifying that the installation is operational.
Step
Description
For details, see
1.
Select a base I/O address for each BX 3000 board.
Section 2.4.1
of this manual.
2.
Select an MVIP clock master, if necessary.
Section 2.4.2
of this manual.
3.
Insert each board into one of your computer's ISA slots.
Section 2.4.3
of this manual.
4.
Create a test network configuration.
Section 2.7
of this manual.
5.
Install CT Access.
The
CT Access Installation Manual
.
6.
Install the DPNSS service for CT Access
Section 3.2
of this manual.
7.
Configure the BX 3000/DPNSS software.
Section 3.3
of this manual.
8.
Verify that your installation is operational.
Chapter 4
of this manual.
9.
Develop your application.
The
DPNSS Service Developer's Reference Manual
and your CT Access documentation.
10.
If application development is complete, connect the board to the E1 network.
Section 2.6
of this manual.
11.
Run your application.
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Figure 1. BX 3000-1E and BX 3000-2E Boards (RJ45 Connectors)
Figure 2. DPNSS Application Architecture (Page 1 of 1 in this chapter) Version