User's Manual
Table Of Contents
- Corning
- Mid-Power Remote Unit (MRU)
- Preface Material
- About This Manual
- Hardware
- Software Warranty
- Returns
- Limitations of Liabilities
- Reporting Defects
- Warnings and Admonishments
- Regulatory Compliance Information
- RF Safety
- Laser Safety
- Care of Fiber Optic Connectors
- Company Certification
- Licensee Contact Information
- Table of Contents
- 1 Introduction
- 2 MRU Interfaces
- 3 Installation Guidelines
- 4 Installation
- 5 Appendix A: Specifications
- Supported Services
- Coupling Specifications
- Physical Specifications
- 6 Appendix B: Ordering Information
Installation Guidelines CMA-438-AEN Page 22
Draft
• Broadband frequency: 300 – 3000 MHz
• -20 dB coupling (SMA coupling port)
• Max. VSWR/return loss:12 dB
• Max. insertion loss (dB): 0.2
• Number of antennas that can be connected (with cables/splitters) – it is not recommended to connect more than one
antenna per connector since 1:1 connectivity is reduced with each split.
• Types of couplers/splitters – depends on number of splits (not recommended)
3.6.2 General Installation Guidelines
• The MRU should be installed at a convenient location, free of metallic obstruction (can also be installed in plenum spaces).
• Install the MRU at the designated height and tune it roughly toward the service coverage area.
• Installation of this antenna must provide a minimum separation distance of 100 cm from any personnel within the area.
• Cable and jumper loss is at least 2 dB.
3.7 Fiber Optic Requirements
3.7.1 Authorized Optic Cables
The following specified optic cables are authorized for use with the MRU product:
• Composite plenum tether assemblies
• Fiber: LC APC, 2 – 24 fibers
• Cu: 16 AWG, 14 AWG, 12 AWG; 2 – 12 Conductors
• Armored, non-armored
3.7.2 Fiber Optic Rules
• Use only LC APC connectors
• UniCam
®
connectors can be used for field termination
• Use only
fusion splice for connecting two fibers
• Use minimum splicing/connectors to achieve minimum losses on the fibers (< 0.5 dB)
• Use precaution while installing, bending, or connecting fiber optic cables:
• Fiber optic cable is sensitive to excessive pulling, bending and crushing forces. Consult the cable specification sheet for
the cable you are installing.
• Do not bend cable more sharply than the minimum recommended bend radius.
• Do not apply more pulling force to the cable than specified.
• Do not crush the cable or allow it to kink. Doing so may cause damage that can alter the transmission characteristics of
the cable. The cable may have to be replaced.
• Use an optical power meter and light source for checking the fiber optic cables
• Make sure the environment is clean while connecting/splicing fiber optic cables
• All fiber optic connectors should be cleaned prior to connecting to the system
• Fiber connector protective caps should be installed on all non-terminated fibers and removed just before they are
terminated.
• Pay special attention while connecting the LC APC connectors – ensure that you hear a “click”, indicating a secure
connection
• Never look directly into the end of a fiber that may be carrying laser light. Laser light can be invisible and can damage your
eyes.