Tait TBCK4D Users Manual

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5Installation

This chapter provides information on the site requirements for your TB9300 equipment and also describes how to install the base station in a standard 19 inch rack or cabinet.

If this is your first time installing a TB9300 base station, we recommend that you read the entire chapter before beginning the actual installation.

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5.1 Before You Begin

5.1.1 Equipment Security

The security of your base station equipment is a high priority. If the site is not fully secure, the base station should at least be locked in a secure cabinet to prevent unauthorized access.

5.1.2 Grounding and Lightning Protection

Electrical Ground The base station modules are grounded by physical contact between the

module case and the subrack. To ensure a good ground connection you must tighten each module retaining clamp securely (refer to “Final

Reassembly” on page 106 for the correct torque).

A threaded grounding connector is provided on the rear of the subrack for connection to the site ground point (refer to “Connecting Up the Base

Station” on page 82 for more details).

Lightning Ground It is extremely important for the security of the site and its equipment that

you take adequate precautions against lightning strike. Because it is outside the scope of this manual to provide comprehensive information on this subject, we recommend that you conform to your country’s standards organization or regulatory body.

5.1.3 Equipment Ventilation

Always ensure there is adequate ventilation around the base station.

Notice Do not operate it in a sealed cabinet. You must keep the ambient temperature within the specified range, and we strongly recommended that you ensure that the cooling airflow is not restricted.

Notice The cooling fans are mounted on the front panel and will only operate when the panel is fitted correctly to the front of the subrack. To ensure adequate airflow through the base station, do not operate it for more than a few minutes with the front panel removed (e.g. for servicing purposes).

5.1.4 Ambient Temperature Sensor

The ambient temperature reading for the base station is provided by the temperature sensor located on the front panel circuit board.

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5.1.5 Cabinet and Rack Ventilation

The cooling airflow for the base station enters through the front panel and exits at the rear of the subrack. For optimum thermal performance, the heated air that has passed through a base station must not be allowed to reenter the air intakes on the front panel. Any space at the front of the cabinet not occupied by equipment should be covered by a blanking panel. Refer to Figure 5.1 on page 66.

To allow enough cooling airflow through a cabinet-mounted base station, we recommend the following:

■ an area of at least 23in

holes in front of the air intakes for the fans for each subrack; for example, thirty 0.25x3.3in (6x85mm) slots will allow the recommended airflow

■ a vent in the top of the cabinet with an area of approximately 23in

(150cm rear of the cabinet behind each subrack

■ a 2U gap at the top of the cabinet.

) per subrack, or a similar area of ventilation per subrack at the

(150cm2) of unrestricted ventilation slots or

Auxiliary Extractor Fans

Notice The ventilation opening must be unrestricted. If the slots or

holes are covered with a filter, mesh or grille, the open area must be increased to allow the same airflow as an unrestricted opening.

The maximum ambient temperature entering the cabinet must not exceed +140°F (+60°C).

If you are installing multiple subracks in a cabinet, ensure that there will be enough cooling airflow through the cabinet after the equipment has been installed. For example, the recommended maximum number of subracks in a 38U cabinet is five, as shown in Figure 5.1 on page 66.

If the base station is installed in a rack or cabinet with other equipment with different ventilation requirements, we recommend that the base station be positioned below this equipment.

The base station does not require auxiliary extractor fans mounted in the top of the cabinet. If your cabinet is already fitted with fans, the following procedures apply:

■ if there are six or more 4.75in (12cm) fans, each capable of extracting

■ if there are fewer than six fans, you must remove them and ensure the

94.2 ft

per minute (160m3 per hour), they must run continuously

vent in the top of the cabinet has an area of approximately 23in (150cm

) per subrack.

If you have any other configuration, the performance of your system will depend on how closely you comply with the base station airflow requirements described above.

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Figure 5.1 Typical cabinet ventilation requirements

8in (20cm)

side view front view

top view

≥7in (≥17.5cm)

ventilation slots

blanking panels

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airflow entry

airflow exit path

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5.2 Unpacking and Moving the Subrack

The subrack is packed in a strong corrugated cardboard carton with top and bottom foam cushions. To prevent personal injury and damage to the equipment, we recommend that two people unpack and move the subrack. To remove the subrack from the carton, follow the procedure illustrated in

Figure 5.2.

Caution A subrack complete with modules can weigh up to 62lb

(28kg), or up to 66lb (30kg) complete with packaging. We recommend

that you have another person help you unpack and move the equipment. The TBAA03-16 carrying handles will make it easier to move the equipment once it has been unpacked. If necessary, remove the modules from the subrack before moving it (refer to “Replacing Modules” on

page 95). In all cases follow safe lifting practices.

Figure 5.2 Unpacking the subrack

1. Cut the tape securing the flaps at the top of the carton and fold them flat against the sides

2. Rotate the carton carefully onto its side ensuring that none of the flaps is trapped underneath.

c and then onto its top d,

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3. Slide the carton upwards over the foam cushions and lift it away e.

4. Rotate the subrack and cushion carefully over the rear of the subrack

Remove the cushion from the bottom of the subrack

g so that it is the right way up with the cushion on top h. Remove

the cushion from the top of the subrack

Disposal of Packaging

If you do not need to keep the packaging, we recommend that you recycle it according to your local recycling methods. The foam cushions are CFCand HCFC-free and may be burnt in a suitable waste-to-energy combustion facility, or compacted in landfill.

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5.3 Identifying the Equipment

You can identify the model and hardware configuration of the TB9300 modules by referring to the product code printed on labels at the rear of each module. The meaning of each character in the product code is explained in the tables below.

This explanation of product codes is not intended to suggest that any combination of features is necessarily available in any one product. Consult your regional Tait office for more information regarding the availability of specific models and options.

Reciter Product Codes

PA Product Codes

Product Code Description

T01-01105-X

T01-01105-XXXX A = standard

T01-01105-XXX

T01-01105-XXXX

a. The actual frequency coverage in this band is:

Product Code Description

T01-01136-X

T01-01136-XXXX A = 50W

T01-01136-XXX

XXX Frequency Band and Sub-band

D = 148MHz to 174MHz (B3) N = 762MHz to 870MHz

X A = default

A = default

Transmit: 762MHz to 776MHz and 850MHz to 870MHz Receive: 792MHz to 824MHz

XXX Frequency Band

C = 136MHz to 174MHz (B band) N = 762MHz to 870MHz

B = 100W

X A = default

(K4)

(K2)

T01-01136-XXXX

a. The actual frequency coverage in this band when used with a K-band TB9300 re-

citer is 762MHz to 776MHz and 850MHZ to 870MHz.

A = default

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PMU Product Codes

Product Code Description

TBAX

XXX-XXXX 3 = PMU

TBA3X

XX-XXXX 0 = default

TBA3XX

TBA3XXX

TBA3XXX-X

TBA3XXX-XX

TBA3XXX-XXX

TBA3XXX-XXXX

X-XXXX 0 = AC module not fitted

A = AC module fitted

-XXXX 0 = DC module not fitted 1 = 12V DC module fitted 2 = 24V DC module fitted 4 = 48V DC module fitted

XXX 0 = standby power supply card not fitted

1 = 12VDC standby power supply card fitted 2 = 24VDC standby power supply card fitted 4 = 48VDC standby power supply card fitted

XX 0 = auxiliary power supply board not fitted

1 = 12VDC auxiliary power supply board fitted 2 = 24VDC auxiliary power supply board fitted 4 = 48VDC auxiliary power supply board fitted

X 0 = default

0 = default

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5.4 Initial Setting Up

Before putting the base station into service, you may want to carry out some basic functional testing, configuration, and tuning (if required). This section provides an overview of these procedures:

■ checking that the base station powers up correctly

■ checking the basic functionality of the base station by using the tests

available in the web interface

■ customizing the configuration for the intended installation and

verifying that the configuration is correct

■ changing the root password

■ tuning the base station (if required).

5.4.1 Confirming Operation

Notice Make sure that the RF output is connected to a suitable atten-

uator or dummy load. Do not remove the load while the PA is transmitting as this may damage the PA output stage.

Applying Power 1. Apply power by turning on the PMU.

2. Check that the base station powers up correctly:

■ The front panel display will show “Please wait...” while the base

station starts up (this may take up to two minutes). When the startup process is complete, the display will show the home screen.

■ The cooling fans in the front panel will run at full speed for a few

seconds, then run at low speed while the base station starts up, and then assume standard operation. One or more fans may operate, depending on the temperature of the modules.

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Tait TBCK4D Users Manual

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User Manual