Installation Manual

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15741-1000 Rev. 0.09 03/31/00

AirStar User Guide for Release 2.1.4

AirStar User Guide for Release 2.1.4 AirStar User Guide for Release 2.1.4

AirStar User Guide for Release 2.1.4

4.1

Base Station Outdoor Installation (BRU)

This section describes the procedures for installing a 26 GHz, 39 GHz, and a 10 GHz Base

Radio Unit (BRU).

A BRU Installation Kit is included with the BRU. The BRU Installation Kit contains

connectors for LMR coax cable, self-amalgamating tape, an extra jam nut for the

grounding/lightning protection lug, and a short 1.5m length of LMR240 cable as explained

below.

The location, height, elevation angle and azimuth direction of the BRU to be installed is

determined by the network configuration you have selected. Table Error! No text of

specified style in document.-1 shows the operating range for the BRU.

Table Error! No text of specified style in document.-1 BRU Operating Environmental

Specifications

Type Item Specifications

Storage temperature

-40

°C to +70°C

Environmental

Operating temperature

-35

°C to +55°C

Characteristi cs

Wind loading Operational 145 km/hr

Survival 200 km/hr

Altitude 0 m to 4500 m

The 26 GHz and 39 GHz BRU antenna is vertically polarized. To preserve the correct

polarization, mount the BRU with the same orientation as shown in the installation figures.

The BRU will not function properly if the polarization is not correct. For proper

polarization the BRU must be within 3

° of vertical.

The 10 GHz BRU can be ordered either vertically polarized or horizontally polarized.

4.1.1

4.1.14.1.1

4.1.1

Wind Loading

Wind LoadingWind Loading

Wind Loading

For the pole mount, the coordinate origin is set in the centerline of the pole, located on

middle of the two bolts in Z axis (not the base of the mounting bracket).

The appendix contains a complete Wind Load analysis report for the BRUs.

Summary of content (4 pages)

PAGE 1
Error! Reference source not found. 4.1 Base Station Outdoor Installation (BRU) This section describes the procedures for installing a 26 GHz, 39 GHz, and a 10 GHz Base Radio Unit (BRU). A BRU Installation Kit is included with the BRU. The BRU Installation Kit contains connectors for LMR coax cable, self-amalgamating tape, an extra jam nut for the grounding/lightning protection lug, and a short 1.5m length of LMR240 cable as explained below.
PAGE 2
Error! Reference source not found. 4.1.2 Mounting the 26 GHz or 39 GHz BRU Mount the BRU on a support pole (2 to 4.5 in or 50 to 114 mm in diameter). The only tool required to mount the BRU is a 17mm wrench. An Installation Kit is provided with the unit. One or more BRUs may be mounted on the same pole. Use the following procedure to mounting the BRU on the pole: 1. Refer to Figure Error! No text of specified style in document.
PAGE 3
Error! Reference source not found. 3. Install the BRU onto the Mounting Plate as follows (see Figure Error! No text of specified style in document.-2): a) Insert the two studs with the o-ring, flat washer, lock washer and hex nut through the clearance holes on the mounting plate. b) Slide the BRU to the left until the Rotation Pin on the BRU/BRU Mounting Bracket assembly aligns with the Pilot Hole of the Mounting Plate and the two studs are in the elevation adjustment slots.
PAGE 4
Error! Reference source not found. 1. Install the right-angle TNC-TNC adapter onto the coaxial connector. Ensure that the connector is dry and free of corrosion. Even a small amount of corrosion or dampness can cause signal degradation. 2. Connect the coaxial cable to the TNC connector on the BRU. When an LMR400 coaxial cable is used, a one meter section of LMR240 coaxial cable with a male TNC and female N-type connector is required. 3.