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-XXX-AEN Page 21
Draft
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.
3.8 Grounding Requirement
Verify that the equipment has been well grounded (refer to the grounding lug on the bottom front panel of the MRU chassis. This
includes antennas and all cables connected to the system. Ensure lightning protection for the antennas is properly grounded.
See sections 4.2.3 for MRU grounding connection.
3.9 Manual Handling
During transportation and installation, take necessary handling precautions to avoid potential physical injury to the installation
personnel and the equipment.