Tait TBDH3G Users Manual

TB7300 Installation and Operation Manual Installation 39
© Tait Limited November 2017

5 Installation

This chapter provides information on the site requirements for your
TB7300 equipment and also describes how to install the base station in a
standard 19inch rack or cabinet.

If this is your first time installing a TB7300 base station, we recommend
that you read the entire chapter before beginning the actual installation.

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,
ventilated cabinet to prevent unauthorized access.

5.1.2 Grounding and Lightning Protection

Electrical Ground

A threaded grounding connector is provided on the rear of the tray for
permanent connection to the site protective ground point (refer to

“Connecting the Base Station” on page 51 for more details). The minimum

wire gauge for this connection is 1.35mm²/16AWG.

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.

Norway and
Sweden

Norsk

Utstyr som er koplet til beskyttelsesjord via nettplugg og/eller via annet
jordtilkoplet utstyr - og er tilkoplet et kabel-TV nett, kan forårsake
brannfare. For å unngå dette skal det ved tilkopling av utstyret til kabel-TV
nettet installeres en galvanisk isolator mellom utstyret og kabel-TV nettet.

Svenska

Utrustning som är kopplad till skyddsjord via jordat vägguttag och/eller via
annan utrustning och samtidigt är kopplad till kabel-TV nät kan i vissa fall
medfõra risk fõr brand. Fõr att undvika detta skall vid anslutning av
utrustningen till kabel-TV nät galvanisk isolator finnas mellan utrustningen
och kabel-TV nätet.

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© Tait Limited November 2017

5.1.3 Equipment Ventilation

Always ensure there is adequate ventilation around the base station (refer
to “Cabinet and Rack Ventilation” on page 40).

Notice Do not operate equipment in a sealed cabinet. The ambient
temperature must stay within the specified range. We recommend
strongly that you ensure the cooling airflow is not restricted.

Notice The cooling fans are mounted behind the front panel. To
ensure adequate airflow through the base station, do not operate it for
more than a few minutes with the fans disconnected (such as when the
base station is being serviced).

5.1.4 Ambient Temperature Sensor

The ambient temperature reading for the base station is provided by the
temperature sensor located inside the chassis.

5.1.5 Cabinet and Rack Ventilation

The cooling airflow for the subrack enters through the front panel and exits
at the rear. For optimum thermal performance, the heated air that passes
through a base station must never 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. See

Figure 5.1 on

page 41

.

Equipment installation should observe the following guidelines:

■ The recommended maximum number of subracks in a 38U cabinet is

five, as illustrated in

Figure 5.1 on page 41.

■ 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 41.

■ Subrack placement in the cabinet should include a 2U gap at the top of

the cabinet.

■ To allow enough cooling airflow through a cabinet-mounted base

station, the cabinet should allow for 50 cu.ft/min for each subrack
(0.024 cu.m/s).

■ To ensure adequate ventilation, the cabinet should have a vent at the top

with an area of approximately 23in² (150cm²) per subrack, or a similar
area of ventilation at the rear of the cabinet behind each subrack.

■ The maximum ambient temperature at the base station front panels must

not exceed +140°F (+60°C).

TB7300 Installation and Operation Manual Installation 41
© Tait Limited November 2017

Figure 5.1 Typical cabinet ventilation requirements

b

ventilation slots

d

airflow entry

c

blanking panels

e

airflow exit

20cm
(8in)

2U

t10cm
(t4 in)

side view front view

top view

c

c

d

e

b

42 Installation TB7300 Installation and Operation Manual

© Tait Limited November 2017

5.2 Unpacking the Equipment

Unpacking the
Base Station

The base station is packed in a strong corrugated cardboard carton with top
and bottom cushions.

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 and then onto its top,
ensuring that none of the flaps are trapped underneath.

3. Slide the carton upwards over the cushions and lift it away. Remove
the cushion from the bottom of the base station.

4. Lift the base station clear of the remaining cushion.

Disposal of
Packaging

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

TB7300 Installation and Operation Manual Installation 43
© Tait Limited November 2017

5.3 Identifying the Equipment

You can identify the model and hardware configuration of the TB7300 by
referring to the product code printed on a label at the rear of the base
station. The meaning of each character in the product code is explained in
the table 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.

Product Code Description

TB73XX-XXXX-XXXX-XXXX-10 10 = single 40/50W base station/repeater

TB73XX-XXXX-XXXX-XXXX-10 Frequency Band

B3 = 148 MHz to 174MHz
H3 = 470MHz to 520MHz
H5 = 400 MHz to 470 MHz

TB73XX-XXXX-XXXX-XXXX-10 B = 40/50W

TB73XX-XXXX-XXXX-XXXX-10 0 = default

TB73XX-XXXX-XXXX-XXXX-10 0 = default

TB73XX-XXXX-XXXX-XXXX-10 0 = 13.8VDC (nominal) input

TB73XX-XXXX-XXXX-XXXX-10 0 = default

TB73XX-XXXX-XXXX-XXXX-10 Feature License

00 = None [Default: Analog (TBAS301)]
AC = DMR Express SFE License with TDMA
operation (TBAS302)
AD = DMR Access SFE License with TDMA
operation (TBAS303)
AE = DMR conventional (TBAS304)

TB73XX-XXXX-XXXX-XXXX-10 10 = default

44 Installation TB7300 Installation and Operation Manual

© Tait Limited November 2017

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 The RF output must be connected to a suitable attenuator 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 to the TB7300.

2. Check that the base station powers up correctly:

All LEDs turn on initially, then the transmit and receive LEDs turn
off, leaving the green power LED on, and the red alarm LED flash­ing. The alarm LED will turn off when the base station has finished
its start-up sequence.

Functional Tests The following table provides an overview of the tests available using the

web interface. Refer to the base station Help for full details of these tests.

Test Notes Menu

receiver operation requires a suitable RF source Diagnose > RF Interface > Receiver

transmitter operation requires connection to the

network

Diagnose > RF Interface > Transmitter

ping checks the IP connection to

another device with an IP address

Diagnose > Connection > Network

NTP query checks if the NTP-based time

synchronization is working