16-03-00 15:51 Overview 1-1
Chapter 1Introduction
This chapter describes basic physical and functional features of the
ASMi-31 standalone 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 The ASMi-31 modem is a synchronous/asynchronous short-range modem
which is managed by a remote master modem. ASMi-31 operates
synchronously or asynchronously at full duplex over 2-wire twisted pair,
unconditioned lines. The ASMi-31 modem has a transmission range of 8 km
(5 miles) over 24 AWG wire and operates at user-selectable data rates from
1.2 kbps to 128 kbps.
Versions ASMi-31 is available in several versions:
• ASMi-31 standalone – the standalone slave unit features a blank panel
• ASMi-31/R – a plug-in card which may be installed in the ASM-MN-214
hub.
• ASMi-31C – a plug-in card which may be installed in the LRS-12 or
LRS-24 hub (see ASMi-31C Installation and Operation Manual for details).
Power Supply Versions
The power supply options are:
• AC power source: 115 VAC or 230 VAC
• DC power source: -48 VDC.
Order from: Cutter Networks
Ph:727-398-5252/Fax:727-397-9610
www.bestdatasource.com