User's Manual
Table Of Contents
- Warranties
- Hardware
- Software Warranty
- Returns
- Limitations of Liabilities
- Reporting Defects
- Warnings and Admonishments
- RF Safety
- Compliance with RF safety requirements:
- Power requirements for DC Inputs
- Laser Safety
- Care of Fiber Optic Connectors
- Regulatory Compliance Information
- Standards and Certifications
- Licensee Contact Information
- About this Guide
- Additional Relevant Documents
- List of Acronyms
- Table of Contents
- 1 Introduction
- 2 Installation Guidelines
- 3 Physical Installation
- Appendix A: System Specifications
- RF Parameters
- Supported Services
- RF Parameters per Service Antenna Port
- RF Adjustment
- OverPower Protection Mechanism
- Power Down Mechanism
- RF Parameters for External Wideband and WCS Input Ports
- Physical Specifications
- Standards and Approvals
- Appendix B: Ordering Information
Corning Restricted - Draft for public release
Installation Guidelines
CMA-XXX-AEN
Page 24
• 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.
2.5 RF Coaxial Cable Guidelines
2.5.1 General Cable Installation Procedures
Note: The installer should be familiar with the ANSI/TIA/EIS-568 Cabling Standard guidelines.
Observe the general cable installation procedures that meet with the building codes in your area. The building code
requires that all cabling be installed above ceiling level (where applicable). The length of cable from the risers to each
antenna may need to be concealed above the ceiling.
The cable must be properly supported and maintained straight using velcro cable ties, cable trays and clamps or
hangers every 10 feet (where practical above ceiling level). Where this is not practical, the following should be
observed:
• The minimum bending radius of the supplied ½-in coax cable should be 7-in.
• Cable that is kinked or has a bending radius smaller than 7-in must be replaced.
• Cable runs that span less than two floors should be secured to suitably located mechanical structures.
• The cables should be supported only from the building structure.
• All cables shall be weather-resistant type
.
• Cable length - determined by the system installation plan. When calculating the cable length, take into account
excess cable slack so as not to limit the insertion paths.
2.5.2 RF Rules
• Use coax RG-223, 50 ohm, for RF connections between HX units and DAS antennas.
• When using the Corning system in an environment in which other indoor coverage systems are installed, it is
recommended (where possible) that the antennas are placed at least two meters apart
• When bending coax cables, verify that the bending radius does not exceed the coax specifications.
• Use wideband antennas supporting a range of 700 MHz to 2600 MHz
• Terminate all unused HX RF ports with a 50 ohm load
• Make sure that the VSWR measured at the coax cable meets the product specification The VSWR must be
measured prior to terminating the HX RF ports in the remote communication rooms.
2.5.3 Coax Cable Lengths and Losses
Use the compatible jumper to connect the coax connector to the external antenna.
Note: The required distance between the antennas (installed in the ceiling) depends on the infrastructure and
calculated path-loss.
Coax
Length
Coax Loss
(900 MHz)
Connector
Loss
Total Loss
30 0.7 1.5 2.2
40 0.9 1.5 2.4
50 1.1 1.5 2.6