Raymar Telenetics MIU14.4L User manual

0049-0867-01X 2nd Generation MIU14.4L – USER’S GUIDE 6/22/2011
Rev. A
MIU14.4L
Industrial Grade Leased Line Modems
User’s Guide

0049-0867-01X 2nd Generation MIU14.4L – USER’S GUIDE 6/22/2011
Rev. A Page ii
Raymar Information Technology, Inc.
7325 Roseville Road
Sacramento, California 95842
[phone]
Fax [phone]

0049-0867-01X 2nd Generation MIU14.4L – USER’S GUIDE 6/22/2011
Rev. A Page iii
The products and programs described in this User’s Guide are licensed products
of Raymar-Telenetics. This User’s Guide contains proprietary information
protected by copyright, and this User’s Guide and all accompanying hardware
and documentation are copyrighted.
Raymar-Telenetics does not warrant that the hardware will work properly in all
environments and applications, and makes no warranty and representation,
either implied or expressed, with respect to the quality, performance,
merchantability, or fitness for a particular purpose.
Information in this User’s Guide is subject to change without notice and does not
represent a commitment on the part of Raymar-Telenetics. Raymar-Telenetics
assumes no responsibility for any inaccuracies that may be contained in this
User’s Guide.
Raymar-Telenetics makes no commitment to update or keep current the
information in this User’s Guide, and reserves the right to make changes to this
User’s Guide and/or product without notice.
No part of this manual may be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photocopying, recording, or
information storage and retrieval systems, for any purpose other than the
purchaser's personal use, without the express written permission of Raymar-
Telenetics.
©Copyright 2011 Raymar Information Technology, Inc.
7325 Roseville Road
Sacramento, California 95842
Tel: [phone] Direct: 916-783-1951
Fax: [phone]
Web site: www.raymarinc.com

0049-0867-01X 2nd Generation MIU14.4L – USER’S GUIDE 6/22/2011
Rev. A Page iv
TABLE of CONTENTS
1. STANDARDS......................................................Page 1
2. PRODUCT OVERVIEW.....................................Page 2
3. GENERAL PRODUCT SPECIFICATIONS.......Page 3
4. MODEM SPECIFICATIONS..............................Page 4
5. ANALOG INTERFACE SPECIFICATIONS.....Page 6
6. ANALOG MICROWAVE INTERFACE............Page 7
7. POWER CONNECTIONS.................................. Page 9
8. SERIAL DATA PORT PIN-OUTS ....................Page 10
9. LED INDICATOR..............................................Page 11
10.OUTLINE DRAWING & MOUNTING ............Page 12
11.MODEM CONFIGURATION............................Page 13
12.FACTORY CONFIGURATION ........................Page 15
13.AT COMMAND SET & S-REGISTERS...........Page 17
14.DIAGNOSTICS ..................................................Page 27

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Rev. A Page 1 of 39
1. STANDARDS
Meets FCC Rules Part J, Subpart 15, Class A for radiated emissions.

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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.

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3. GENERAL PRODUCT SPECIFICATIONS
Dimensions: 5.0 x 4.25 x 1.25 inches
Weight: 1 lb
Voltage Supply: Standard Model: 40 to 270VDC
40 to 270VAC, 50/60Hz
LV Model (Suffix “-LV”): 9 to 36VDC
MIU14.4L:
12VDC 24VDC 125VDC 120VAC 220VAC
160mA 69mA 14mA 12mA 9mA
Surge Protection: Power Supply: 8kVrms
Analog Line: 5kVac (MIU2.4 & 9.6)
3.75kVac (MIU14.4 & 28.8)
Digital Line: ESD ± 10kV
Operating Temperature: -40 to +85 deg C
Operating Humidity: 0 to 90% (non-condensing.)
Storage Temperature: -55 to 100 deg C

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4. MODEM SPECIFICATION5
The MIU14.4L design is based on Rockwell modem chipsets. Modem control is through the
industry standard 'AT' command set. The MIU14.4L provides all popular error correction and data
compression capabilities. The MIU14.4L provides the following modem features.
Data Command Set
Rockwell AT command set (See Section 11)
Data Modulations and Speeds
Modem Modulation Type Sync/Async Data Rate
(bps)
MIU14.4L V.32bis TCM Async 14400, 1200,
9600, 7200
MIU14.4L V.32 TCM Async 9600, 4800
MIU14.4L V.33/V.17 TCM Sync 14400, 1200,
9600, 7200
MIU14.4L V.29 QAM Sync 9600, 7200,
4800
MIU14.4L V.27 QAM Sync 4800, 2400
MIU14.4L V.22bis QAM Async 2400, 1200
MIU14.4L V.22 PSK Async 1200, 600
MIU14.4L V.21 FSK Async 0 – 300
MIU14.4L Bell212A PSK Async 1200
MIU14.4L Bel103J FSK Async 0 - 300
Data Modulation Connectivity:
95% or better with Receive Signal Level at –40dBm and Signal/Noise Ratio 20dB (MIU14.4L)
Error Correction and Data Compression:
Error Correction: MNP Class 2-4, MNP 10, V.42.
Data Compression: MNP 5, V.42bis.
Serial Formats and Flow Control:
Serial Speeds: 57600, 38400, 19200, 14400, 9600, 4800, 2400, 1200, 300bps
Serial Formats: 8N1, 8E1, 801, 7E1, 7O1, 7N2

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Flow Control: RTS/CTS (hardware);
XON/XOFF (software);
None
Telephone Analog:
Tx Output Level: -10 dBm +/- 1.0 dB
Rx Sensitivity: - 43dBm
Termination: 2 wire switched line network
Line Impedance: 600 / 900 ohms balance
Other Features:
Receiver Equalization Automatic Adapter and Compromise Equalization with 18 to 32 receiver
Tap Coefficients.
Remote Commands Through MNP or Sequenced modes
Self Test Diagnostics Local Analog Loopback (LALB), Local Digital Loopback (LDLB), Remote
Digital Loopback (RDLB) and Self Test in LALB & RDLB

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5. ANALOG INTERFACE SPECIFICATIONS
The MIU14.4L contains analog circuitry for connection to the public conditioned or unconditioned,
Bell type 3002, 2 or 4-wire, full duplex voice grade lines. The MIU14.4L will also interface to
Power Line Carrier or Microwave radio voice channel networks.
The MIU14.4L has an RJ-11 terminated connector. The following lists the MIU14.4L analog
interface.
Analog Line Type:
Conditioned or unconditioned, Bell type 3002, 2 or 4-wire, full duplex voice grade leased lines or
better.
Analog Line Specifications:
Bandwidth 300 Hz to 3400 Hz (±3dB)
Impedance 600 / 900 ohms, balanced
Frequency Response 400 to 3000Hz (±2dB)
Receiver Input Level -16dBm max.
Output Level +7 dBm
Noise Signal Level -48 dBmO
Polarity: None. The MIU14.4L’s analog circuitry is insensitive to the analog
line’s polarity.