Installation Instructions

ManualsBrandsEnsemble Communications ManualsElectronicsLMDS Base Station Transceiver

Table Of Contents

Preinstallation

Ensemble Communications Inc.

Preinstallation 3

This chapter gives checklists and guidelines for preinstallation

of Fiberless System hardware.

Note When updating or building facilities to accommodate Ensemble

equipment, observe all building codes and regulations.

Chapter Topics Ancillary Equipment 3-10

Antenna Screening 3-5

Antenna Separation for Asynchronous Transmission 3-6

Antenna Separation for Synchronous Transmission 3-6

Installation Requirements 3-3

Installation Tips 3-4

Licenses and Permits 3-2

Location Guidelines 3-2

Multiple Antenna Configuration 3-6

ODU Guidelines 3-4

Power Requirements 3-3

Roof Penetration 3-5

Site Preparation 3-2

Summary of content (10 pages)

PAGE 1
Preinstallation 3 3 This chapter gives checklists and guidelines for preinstallation of Fiberless System hardware. Note Chapter Topics When updating or building facilities to accommodate Ensemble equipment, observe all building codes and regulations.
PAGE 2
3-2 Operator’s Guide to the Fiberless System Site Preparation Site preparation time varies, depending on the particular site. For example, installation in a new location may require building modifications, while an existing building would not. Licenses and Permits Verify all licensing and permit issues. Such issues may include: • Import/export licenses for the site country • Radio licenses, both station license and frequency license Other permits may also be required, depending on location.
PAGE 3
Preinstallation Installation Requirements 3-3 Size and access The base station chassis mounts in a standard 19-inch (48-cm) rack or cabinet and requires 10 rack units (RUs) of space (17.5 inches (44 cm)), 24 inches (60 cm) deep. Allow adequate clearance around the base station to permit access for installation of cards, assemblies, and modules. Verify there is sufficient room to route and attach cables to the rear of the unit.
PAGE 4
3-4 Operator’s Guide to the Fiberless System Installation Tips Installers are responsible for determining the proper attachment method. The following are suggestions regarding cabinet and rack installations. WARNING Do not place any equipment in the cabinet or rack without first securing it to the floor. ODU Guidelines Ensemble Communications Inc. • For concrete floors, use threaded rods with washers and nuts or the proper length and diameter machine bolts with concrete insert anchors.
PAGE 5
Preinstallation • 3-5 For safety and performance, mount ODUs at least seven feet (2.1 meters) above the roof so people are able to walk on the roof without interfering with the antenna’s beam.
PAGE 6
3-6 Operator’s Guide to the Fiberless System Multiple Antenna Configuration In multiple antenna configurations, each sector must be separated by a prescribed space to prevent interference from adjacent sectors. The size of this space depends primarily on the amount of interference a sector’s receiver can tolerate and whether the sectors are operating synchronously or nonsynchronously.
PAGE 7
3-7 Preinstallation Table 3-1: Minimum Horizontal Spacing for Nonsynchonous Sectors Antenna Beam Width in Degrees 90 Angular Separation in Degrees 180 N+1 Spacing (Meters/ Feet) 20.33 N+2 Spacing (Meters/ Feet) N+3 Spacing (Meters/ Feet) 3.57 0.36 N+4 Spacing (Meters/ Feet) 0.36 Figure 3-1, Figure 3-2, and Figure 3-3 show recommended spatial separation for various multiple-antenna mounting scenarios.
PAGE 8
3-8 Operator’s Guide to the Fiberless System Channel N Channel N+2 D Assumptions: Antennas pointed in parallel Minimum of two channels separation Spacing dependent on modulation rate and antenna beam width ·See Table 3-1 for horizontal separations for nonsynchronous transmission. Separation for synchronous transmission is 0.5 m (1.65 ft). Figure 3-2.
PAGE 9
Preinstallation 3-9 Table 3-2: Minimum Roof Clearance Frequency D1 (meters) Minimum R (cm) 41 10 0.85 41 100 2.70 D1 ODU R Parapet Building Roof or Support Surface Figure 3-4. Roof-mount Clearance Requirements Ensemble Communications Inc.
PAGE 10
3-10 Operator’s Guide to the Fiberless System Ancillary Equipment Note Although Ensemble recommends manufacturers, the Fiberless System supports most standard-manufactured ancillary equipment. Table 3-3: Ancillary Equipment Requirements Equipment Required ODU cables Manufacturer and Part Number Standard cable – RG-6 Part No. Belden 9248 Plenum Cable – RG-6 Not suitable for outside use Part No. Belden 82248 TNC crimp connector for Belden 9248 cable Trompeter Electronics Part No.