Bull Escala, Installation & Configuration Manual, Page: 13 / 36

1-1 ISA Internal Modem – Overview
Chapter 1. ISA Internal Modem – Overview
The ISA Internal Modem is a ’modem adapter’. It allows asynchronous communications with
your Customer Service Center in a reliable way and at various speeds, via a connection to
the Public Switched Telephone Network (PSTN).
This modem is intended to be used for RSF (Remote Services Facilities) purposes. RSF not
only uses it, but also manages it. If RSF is used, the modem cannot be shared with another
application.
It can be delivered:
•
either with your system: in that case the software is pre-loaded and the modem is
pre-installed and pre-configured
•
or as an ”add-on”: in that case, the software is pre-loaded but the modem must be
physically installed and configured. This is described in ’Hardware Installation’, on page
2-1.
Modem Features
The ISA Internal Modem has the following features:
•
It may automatically adapt to the line conditions and capacities of the remote modem.
The communication is thus established with the optimum speed, error control and data
compression.
•
It is compliant with UIT–T V.34 standards and allows you to transfer data at
28.8–14.4 kbits/s through the public switched network. The connection to the phone line
is done via a RJ-11 cable provided with the modem.
Its technical specifications (data transmission rates, compatibility, error control...) are
described in Appendix A.
Modem Packaging
Software Components
The software part of the ISA Internal Modem has been
pre-loaded in your machine
. It
consists of one LPP composed of two OPPs:
1.
devices.isa.bullmodem2834I.diag
2.
devices.isa.bullmodem2834I.rte
These OPPs are installable and removable by using the AIX standard installation
procedure. Details about Software Packaging and Installation mechanism can be found in
the
AIX Installation Guide
. See Related Publications in ’About This Book’ of this document.
Hardware Components
The hardware part of the ISA Internal Modem is composed of:
•
the internal modem itself, equipped with a line jack,
•
a RJ-11 cable, to connect the modem to the PSTN,
As an option depending on the country:
•
a wall jack adapter.
The hardware components are shown on Figure 3, on page 2-4.