Raymar Telenetics MIU14.4L, User Manual

Page: 6 / 43

0049-0867-01X 2
nd
Generation MIU14.4L – USER’S GUIDE 6/22/2011
Rev. A Page 2 of 39
2. PRODUCT OVERVIEW
The MIU14.4L is an industrial grade V.32bis modem for connection to unconditioned and
conditioned, voice grade, type 3002 two or four-wire leased lines. It can be powered from a wide
range of AC and DC power supplies, is internally surge protected on both the power and analog
lines, and will operate in temperatures from -40 to +85 deg C.
Internally, the unit consists of a baseboard and a communication module . The baseboard
includes the power supply regulation and surge protection. The communication module is a
Raymar-Telenetics Pony Express Leased Line Modem Module.
The MIU is packaged specifically for the harsh environments found in utility substations and
industrial facilities. Though functionally similar to commercial modems, the MIU includes special
features that make it particularly well suited for utility and industrial applications.
Environment: The MIU has been designed specifically for use in harsh environments. In
addition to an extended temperature range (-40 to +85º C), the MIU includes
surge, shock, vibration, and safety features superior to those of conventional
commercial modems.
Power Supply: The MIU can be powered from a broad range of AC and DC power supplies, such
as an auxiliary supply (eg; 12VDC) from another piece of equipment, 125VDC
from a station battery or a standard 120VAC.
Industrial: The MIU is packaged in a rugged, compact, non-metallic (ABS) enclosure.
Designed for unmanned locations, the MIUs do not include the array of
pushbuttons and LEDs normally associated with consumer-type modems.
Configuration is by dip switches and/or software (“AT”) commands. Standard
industrial connectors for data, analog and power interfaces allow reliable
interconnection to other industrial components.