User's Manual

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TB8100 Installation and Operation Manual Installation 59

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

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.

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. 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.

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.

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.

Summary of content (23 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 Lethal Voltages Warning!! The PMU contains voltages that may be lethal. Refer to the ratings label on the rear of the module.
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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). 5.2 Equipment Safety ESD Precautions Important This equipment contains devices which are susceptible to damage from static charges.
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Equipment Grounding To ensure safe operation the TB8100 BSS equipment must be correctly grounded as described in these installation instructions. Installation and Servicing Personnel The TB8100 BSS should be installed and serviced only by qualified personnel. 5.3 Regulatory Information Distress Frequencies The 406 to 406.1MHz frequency range is reserved worldwide for use by Distress Beacons. Do not program transmitters to operate in this frequency range.
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Dust and Dirt For uncontrolled environments, the level of airborne particulates must not exceed 100µg/m3. 5.5 Grounding and Lightning Protection 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 81 for the correct torque setting).
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You can also obtain the TBA0ST2 tool kit from your nearest Tait Dealer or Customer Service Organisation. It contains the basic tools needed to install, tune and service the TB8100 BSS. 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.
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Cabinet and Rack Ventilation Refer to Figure 5.2 on page 65. The cooling airflow for the TB8100 BSS 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 BSS must not be allowed to re-enter 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.
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Figure 5.2 Typical Cabinet Ventilation Requirements top view b 20cm (8in) side view front view 2U c c e d t 17.
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5.8 Installing the Base Station System Caution 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. Unpacking the Equipment Unpacking the TB8100 BSS Figure 5.
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Disposal of Packaging 3. 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 71. 2. Fit the subrack into the cabinet or rack and secure it firmly with an M6 screw, flat and spring washer in each of the four main mounting holes b, as shown in Figure 5.4 on page 67. Note If you need extra mounting security, there are additional mounting holes c provided at the rear of the subrack for auxiliary support brackets.
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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 screws through the main mounting holes on the front of the subrack, as shown in Figure 5.4 on page 67. Figure 5.
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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.
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7 Connection Once the TB8100 BSS hardware is installed, you need to connect the individual modules to each other, and to any ancillary equipment required in your system. This chapter provides information on all the inputs and outputs available on the TB8100 BSS. 7.1 Overview of Inputs and Outputs This section identifies the main input and output connections for the TB8100 BSS. Figure 7.1 below identifies the connections at the front of a dual base station, and Figure 7.
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Figure 7.
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Figure 7.3 Dual 5 or 50W Base Station Inputs and Outputs - Rear View b c b c j 1) i j reciter 2 b c d e f d i reciter 1 d h PA 2 system interface connector external reference frequency input RF output –VDC input +VDC input Figure 7.
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Figure 7.5 Power Save Control Panel Outputs b c b DC outputs for fans mounted on front panel; also used for fan rotation detectors (if fitted) 7.2 c RS-232 programming port Power Supply Connections AC Power The TB8100 PMU is designed to accept a mains input of 88 to 264VAC at 45 to 65Hz. We recommend that a standard 3-wire grounded outlet is used to supply the AC power. The socket-outlet must be installed near the equipment and must be easily accessible.
PAGE 17
Terminate and insulate the DC input leads so they are protected from accidentally shorting to the subrack if the PMU is removed before the leads are disconnected. Figure 7.6 Recommended DC Power Connection Circuit Breaker or Fuse PMU Battery Reciter Auxiliary DC Input The system interface PCB in the reciter has an auxiliary DC input connector.
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Pin 5 6 7 8 1 2 3 4 rear view 7.3 Description 1 +V output 2 +V output 3 +V output 4 +V output 5 ground 6 ground 7 ground 8 ground Links RF Connections The RF input to the TB8100 BSS is via the lower BNC connector on the rear panel of the reciter. The RF output is via the N-type connector on the rear panel of the PA (refer to Figure 7.3 on page 85). We recommend that you use dual-screened coaxial cable such as RG223 for the BNC connections, and RG214 for the N-type connections.
PAGE 19
7.4 System Connections The reciter can be fitted with an optional system interface PCB which provides the links between the reciter’s internal circuitry and external equipment. This PCB is securely mounted to the reciter’s chassis and is connected to the control PCB with a flexible connector. The system interface PCB is fitted with industry-standard connectors and several standard types are available for different applications.
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digital I/O. ■ It is fitted with a 25-way female D-range connector and an auxiliary DC input connector. The pin allocations are listed in the table below.
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Isolated This system interface PCB is fitted to reciters bearing the product code TBA4xxx-0B0x or TBA5xxx-0B0x. If purchased separately, it has the product code TBA10B0. It is the same as the standard model, except that the balanced audio interfaces are galvanically isolated. Isolated E&M This system interface PCB is fitted to reciters bearing the product code TBA4xxx-0C0x or TBA5xxx-0C0x. If purchased separately, it has the product code TBA10C0.
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This system interface PCB is fitted to reciters bearing the product code TBA4xxx-0T1x or TBA5xxx-0T1x. If purchased separately, it has the product code TBA10T1. It is designed for use with MPT trunking systems. It is fitted with a 15-way female D-range connector and an auxiliary DC input connector. The pin allocations are listed in the table below. TaitNet Pin B C D E F G H I J 1) 1! 1@ 1# 1$ 1% rear view 7.
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7.6 Microphone Connection You can connect a microphone to the TB8100 BSS via the standard RJ45 socket on the control panel. If a standard TB8100 microphone has not been supplied with your BSS, you should use an electret microphone. The pin allocations for the microphone socket are given in the following table.