Specifications

Overview 1-1
Chapter 1
Introduction
1.1 Overview
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-inch
modem rack, holding up to 14 cards.
Power Supply
• AC – 115 VAC or 230 VAC
• DC – 18 to 60 VDC.
Applications
The following diagrams illustrate the ASM-10/8 in a variety of configurations:
4-wire
Up to 55 km (34.1 miles)
ASM-10/8 ASM-10/8
Figure 1-1. Point-to-Point Application