RAD Data comm Overview, General, ASM-10/8 standalone unit, Power Supply Versions

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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.

Overview 1-1

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Contents

International Headquarters RAD Data Communications Inc ASM-10/8Page Warranty Safety Status Ports Safety WarningsSupplementary Information SafetyPage Jumper Possible Settings Default Setting QS.1 Installing ASM-10/8Switch Jumper SettingsRPF OFF QS.2 Operating ASM-10/8 Quick Start Guide Operating ASM-10/8 Rqwhqwv +$3757528%/6+227,1*$1,$*1267,&6 Lvwriljxuhv LVWRI7DEOHV Versions Power Supply VersionsOverview GeneralASM-10/8 Point-to-Point Application ApplicationsFeatures Speed 19 AWG 24 AWG 26 AWG Transmission RangeASM-10/8 Standalone Unit Physical DescriptionFunctional Description Receiver Remote Power Failure RPF Indication Diagnostics 6shows the ASM-10/8 internal circuitry ASM-10/8 Block DiagramLine Technical SpecificationsEnvironment Site Requirements and Prerequisites Package ContentsInternal Jumpers Installation and SetupSetting To complete the installation of ASM 10/8Setting the Internal Jumpers and Switches Opening the ASM-10/8 CaseTo open the ASM-10/8 case Jumper Description Values Default Setting Dbm600 300 150 Msec Msec8 msec Data Rate Selects the data rate 14.4 300 HighConfiguration Considerations Setting AGC and CTS DelayNo of bits Setting the Async Character Length Setting the V.54 DelayStart Bit Data Bits Parity Stop Bit No of Bits Connecting the Power Connecting the DTE$60IURQWSDQHOLQGLFDWRUVDQGFRQWUROV Kdswhu 2SHUDWLRQVrxufh 2SHUDWLQJ,QVWUXFWLRQVKdswhu Lqwhuidfh LJXUH5HPRWHLJLWDO/RRSEDFN ³ 7RDFWLYDWHWKH5HPRWHLJLWDO/RRSEDFNLJXUH/RFDOLJLWDO/RRSEDFN ³ 7RSHUIRUPWKH/RFDOLJLWDO/RRSEDFN 6HFWLRQGHVFULEHVKRZWRLQVWDOO$605 Kdswhu DUG&DJH9HUVLRQ$605&DUG9HUVLRQ 3RZHU6XSSO\ Vkrxogerwkoljkwzkhqpdlqvsrzhulvsurylghg RU9$ 6XSSO\Rxwohw DQG7DEOHLQ&KDSWHUKDSWHU&DUG&DJH9HUVLRQ 7DEOH$7,QWHUIDFH3LQ$VVLJQPHQWV $SSHQGL$ Rqqhfwrululqj7HVW&RPPDQG 7DEOH$7,QWHUIDFH3LQ$VVLJQPHQWV&RQWDuqlqj Udfn LVFRQQHFW$&SRZHUEHIRUHRSHQLQJWKHXQLW³ 7RLQVWDOODVLQJOHXQLW UDFNVHHLJXUH% LJXUH%,QVWDOODWLRQRID6LQJOH8QLWVfuhzvvxssolhg LJXUH%,QVWDOODWLRQRI7ZR8QLWV ³ 7RLQVWDOOWZRXQLWVLJXUH%DVWHQLQJ7ZR8QLWV7RJHWKHU

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