User's Manual

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TB8100 Installation and Operation Manual Installation 69

5 Installation

This chapter describes how to install the TB8100 BSS in a standard 19 inch

rack or cabinet. It also provides some general information on safety

precautions and site requirements. We recommend that you read the entire

chapter before beginning the installation.

5.1 Personal Safety

5.1.1 Lethal Voltages

Warning!! The PMU contains voltages that may be lethal.

Refer to the ratings label on the rear of the

module.

The TB8100 BSS must be installed so that the rear of the PMU is located

in a service access area. The PMU must be connected to the mains supply

source by trained personnel in accordance with local and national

regulations.

Disconnect the mains IEC connector and wait for five minutes for

the internal voltages to self-discharge before dismantling. The AC

power on/off switch does not isolate the PMU from the mains. It

breaks only the phase circuit, not the neutral.

The PMU should be serviced only by qualified technicians. There are no

user-replaceable parts inside. If the PMU is damaged and does not function

properly, stop the module safely and contact your nearest Tait Dealer or

Customer Service Organisation immediately.

All servicing should be carried out only when the PMU is powered through

a mains isolating transformer of sufficient rating. We strongly

recommend that the mains power to the whole of the repair and test area

is supplied via an earth leakage circuit breaker.

5.1.2 Explosive Environments

Warning!! Do not operate TB8100 BSS equipment near

electrical blasting caps or in an explosive atmos-

phere. Operating the equipment in these envi-

ronments is a definite safety hazard.

Summary of content (14 pages)

PAGE 1
5 Installation This chapter describes how to install the TB8100 BSS in a standard 19 inch rack or cabinet. It also provides some general information on safety precautions and site requirements. We recommend that you read the entire chapter before beginning the installation. 5.1 Personal Safety 5.1.1 Lethal Voltages Warning!! The PMU contains voltages that may be lethal. Refer to the ratings label on the rear of the module.
PAGE 2
5.1.3 Proximity to RF Transmissions Do not operate the transmitter when someone is standing within 90cm (3ft) of the antenna. Do not operate the transmitter unless you have checked that all RF connectors are secure. 5.1.4 High Temperatures Take care when handling a PMU or PA which has been operating recently. Under extreme operating conditions (+60°C [+140°F] ambient air temperature) or high duty cycles the external surfaces of the PMU and PA can reach temperatures of up to +80°C (+176°F). 5.
PAGE 3
5.2.2 Antenna Load The TB8100 BSS equipment has been designed to operate safely under a wide range of antenna loading conditions. However, we strongly recommend that the transmitter should always be operated with a suitable load to prevent damage to the transmitter output power stage. 5.2.3 Equipment Grounding To ensure safe operation the TB8100 BSS equipment must be correctly grounded as described in these installation instructions. 5.2.
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5.3.4 Health, Safety and Electromagnetic Compatibility in Europe In the European Community, radio and telecommunications equipment is regulated by Directive 1999/5/EC, also known as the Radio and Telecommunications Terminal Equipment (R&TTE) directive. The requirements of this directive include protection of health and safety of users, as well as electromagnetic compatibility. Intended Purpose of Product This product is an FM radio transceiver.
PAGE 5
.5 Grounding and Lightning Protection 5.5.1 Electrical Ground The TB8100 BSS 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 97 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 “Connection” on page 99 for more details). 5.5.
PAGE 6
5.7 Ventilation Always ensure there is adequate ventilation around the TB8100 BSS. 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. Important 5.7.1 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.
PAGE 7
Figure 5.2 Typical cabinet ventilation requirements top view b 20cm (8in) side view front view 2U c c e d t17.
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To allow enough cooling airflow through a cabinet-mounted BSS, we recommend the following: ■ ■ ■ an area of at least 150cm2 (23in2) of unrestricted ventilation slots or holes in front of the air intakes for the fans for each subrack; for example, thirty 6x85mm (0.25x3.
PAGE 9
5.8 Installing the Base Station System Caution 5.8.1 Unpacking the Equipment Unpacking the TB8100 BSS Figure 5.3 A TB8100 subrack complete with modules can weigh up to 28kg (62lb), or up to 30kg (66lb) complete with packaging. We recommend that, once the equipment is out of the carton, you remove the modules from the subrack before moving the equipment again. Otherwise, have another person help you with the lifting. In all cases follow safe lifting practices.
PAGE 10
Slide the carton upwards over the foam cushions and lift it away e. Remove the cushion from the bottom of the BSS f . 4. Rotate the BSS and cushion carefully over the rear of the BSS g so that the BSS is the right way up with the cushion on top h. Remove the cushion from the top of the BSS i. If you do not need to keep the packaging, we recommend that you recycle it according to your local recycling methods.
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1. Remove the front panel, as described in “Preliminary Disassembly” on page 84. 2. Fit the subrack into the cabinet or rack and secure it firmly with an M6 (or 0.25in if you are using imperial fittings) screw, flat and spring washer in each of the four main mounting holes b, as shown in Figure 5.4 on page 78. Note 5.8.3 If you need extra mounting security, there are additional mounting holes c provided at the rear of the subrack for auxiliary support brackets.
PAGE 12
5.8.4 Optional Slide Mounting Rails You can also use TBA2141 slide mounting rails b when mounting the TB8100 BSS in a cabinet, as shown in Figure 5.6 below. These rails will support the BSS while you slide it into the cabinet. However, you must still secure the BSS to the cabinet with four M6 (0.25in) screws through the main mounting holes on the front of the subrack, as shown in Figure 5.4 on page 78. Figure 5.6 Optional slide mounting rail - rear view c b Important 5.8.
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Figure 5.7 below shows two recommended methods of securing these cables to prevent straining either set of terminals. Figure 5.