Rad-data-comm ASM-10/8 Bedienungsanleitung PDF herunterladen (Seite 15)

09/10/00 16:26 Overview 1-1

Chapter 1

Introduction

This chapter describes the basic physical and functional features of the

ASM-10/8 short-range modem, as well as some typical applications. It

discusses the following topics:

•

An overview of the modem

•

Physical description

•

Functional description

•

Technical specifications.

1.1 Overview

General

ASM-10/8 is a short-range modem, which operates over unconditioned

lines. It can function in full or half-duplex mode with synchronous or

asynchronous transmission format. ASM-10/8 has an extended range of up

to 28 km (17.4 miles) on 24 AWG wire, and more depending on wire gauge

and data rate (see Table 1-1). It operates at eight selectable rates ranging

from 1.2 kbps to 19.2 kbps.

Versions

The following versions of the modem available:

•

ASM-10/8 standalone unit

•

ASM-10/8/R: a plug-in card for installation in the ASM-MN-214

19" hub, holding up to 14 cards.

Power Supply Versions

The power supply options are:

•

For the standalone power supply: 100 VAC, 115 VAC; or 230 VAC.

•

For the rack main power supply: 100 VAC, 115 VAC; or 230 VAC; or

-48 VDC, or 24 VDC.

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