Introduction, Telecom, Telecom user guide user guide – ATL Telecom AM64/512 User Manual

Page 5

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User Guide

User Guide

High Speed Modems

High Speed Modems

5

1. Introduction

This manual applies to the AM64/384 – AM64/512 - AM64/768 – AM64/1024 High Speed Baseband
Modems. These modems are manufactured in the U.K. by Ascom Telecommunications Ltd.
The mnemonic BBM stands for Base Band Modem, and this should be understood (in all cases) to be the
BaseBand Modem itself.

There are six variations of interfaces available, each with a different physical data interface circuit. The
Ascom Telecommunications Ltd. part numbers are as follows:

AM64/384

V.11 : 1/226/011/100

AM64/384

V.24 :

1/226/012/100

AM64/384

V.35 : 1/226/013/100

AM64/384

V.36 : 1/226/014/100

AM64/384

RS530 : 1/226/015/100

AM64/384

G.703 (64kbps) 1/226/016/100

AM64/512

V.11 : 1/226/001/100

AM64/512

V.24 :

1/226/002/100

AM64/512

V.35 : 1/226/003/100

AM64/512

V.36 : 1/226/004/100

AM64/512

RS530 : 1/226/005/100

AM64/512

G.703 (64kbps) 1/226/006/100

AM64/768

V.11

1/226/111/100

AM64/768

V.24

1/226/112/100

AM64/768

V.35

1/226/113/100

AM64/768

V.36

1/226/114/100

AM64/768

RS530

1/226/115/100

AM64/1024

V.11 : 1/226/101/100

AM64/1024

V.24 :

1/226/102/100

AM64/1024

V.35 : 1/226/103/100

AM64/1024

V.36 : 1/226/104/100

AM64/1024

RS530 : 1/226/105/100

The units should have an identifying label carrying this number attached to the underside.

Separate interface modules can also be purchased in order to modify the units for operation with a
different DTE interface at a later date.

The BBM’s can provide synchronous communications at user data rates between 64kbps and 1024kbps
over twisted pair cable.

The BBM can easily be configured using the front panel keys in conjunction with the Liquid Crystal
Display (LCD). The display is operated in a menu type fashion with easy to understand mnemonics,
which should make constant reference to this handbook unnecessary.

Once configured the operation of the BBM is totally automatic, in the event of line disturbances the
data link will be restored without operator intervention.

Chapter 4 (Installation) describes the basic set up procedure and this should be read prior to setting up
any link.
Chapter 6 (Front Panel Features) is much more detailed, but should be read in full to gain an
understanding of the full range of menu facilities available.

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