Tait TB7100, TBA0STU, TB9100, TB8100, TBA0STP Operation Manual

TB7100 base station
TB8100 base station
TB9100 base station

TBA0STU / TBA0STP

Calibration and Test Unit

Operation Manual

MBA-00013-01

Issue 1

September 2005

2 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Tait Contact Information

Tait Radio Communications
Corporate Head Office

Tait Electronics Ltd
P.O. Box 1645
Christchurch
New Zealand

For the address and telephone number of
regional offices, refer to the TaitWorld
website:

We bs i te : http://www.taitworld.com

Technical Support

For assistance with specific technical issues,
contact Technical Support:

E-mail: [e-mail]
We bs i te : http://support.taitworld.com

To our European customers:

Tait Electronics Limited is an environmentally responsible company which
supports waste minimization and material recovery. The European Union’s
Waste Electrical and Electronic Equipment Directive requires that this
product be disposed of separately from the general waste stream when its
service life is over. Please be environmentally responsible and dispose
through the original supplier, your local municipal waste “separate collec­tion” service, or contact Tait Electronics Limited.

TBA0STU/TBA0STP CTU Operation Manual 3
© Tait Electronics Limited September 2005

Contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Enquiries and Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Updates of Manual and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Associated Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Publication Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Modification History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Using the CTU with a TB7100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Using the CTU with a TB8100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5 Using the CTU with a TB9100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Appendix A - CTU Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Appendix B - CTU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Preface

Scope of Manual

This manual provides information on using the TBA0STU/TBA0STP base
station Calibration and Test Unit (CTU) with a Tait base station. It
describes the input and output connectors and controls available on the
CTU, and includes a description of the accessories supplied with the CTU.
A block diagram is also provided.

Enquiries and Comments

If you have any enquiries regarding this manual, or any comments,
suggestions and notifications of errors, please contact Technical Support
(refer to “Tait Contact Information” on page 2).

Updates of Manual and Equipment

In the interests of improving the performance, reliability or servicing of the
equipment, Tait Electronics Ltd reserves the right to update the equipment
or this manual or both without prior notice.

Copyright

All information contained in this manual is the property of Tait Electronics
Ltd. All rights are reserved. This manual may not, in whole or in part, be
copied, photocopied, reproduced, translated, stored, or reduced to any
electronic medium or machine-readable form, without prior written
permission from Tait Electronics Ltd. All trade names referenced are the
service mark, trademark or registered trademark of the respective
manufacturers.

Disclaimer

There are no warranties extended or granted by this manual. Tait
Electronics Ltd accepts no responsibility for damage arising from use of the
information contained in the manual or of the equipment and software it
describes. It is the responsibility of the user to ensure that use of such
information, equipment and software complies with the laws, rules and
regulations of the applicable jurisdictions.

TBA0STU/TBA0STP CTU Operation Manual 5
© Tait Electronics Limited September 2005

Document Conventions

Within this manual, four types of alerts are given to the reader: Warning,
Caution, Important and Note. The following paragraphs illustrate each type
of alert and its associated symbol.

Warning!! This alert is used when there is a potential risk

of death or serious injury.

Caution This alert is used when there is a risk of minor or

moderate injury to people.

Important This alert is used t o warn about the risk of equipment dam-

age or malfunction.

Note This alert is used to highlight information that is required to

ensure procedures are performed correctly.

Associated Documentation

TB7100 Calibration Application online Help.
TB7100 Programming Application online Help.
TB7100 Installation and Operation Manual.
TB7100 Specifications Manual.

TB8100 Calibration Kit User’s Manual and online Help.
TB8100 Service Kit and Alarm Center User’s Manuals and online Help.
TB8100 Installation and Operation Manual.
TB8100 Specifications Manual.
TB8100 Service Manual.

TB9100 Calibration Software User’s Manual and online Help.
TB9100 Customer Service Software User’s Manual and online Help.
TB9100 Installation and Operation Manual.
TB9100 Specifications Manual.
TB9100 Network Installation Guide.

Technical notes are published from time to time to describe applications for
Tait products, to provide technical details not included in manuals, and to
offer solutions for any problems that arise.

All available product documentation is provided on the Product CD
supplied with the base station. Updates may also be published on the Tait
Technical Support website (http://support.taitworld.com).

6 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Publication Record

Issue Publication Date Description

1 September 2005 First release

TBA0STU/TBA0STP CTU Operation Manual Introduction 7
© Tait Electronics Limited September 2005

1Introduction

The base station calibration and test unit (CTU) is designed to make it easier
to connect a Tait base station to standard test equipment, and to a PC
running the appropriate programming and calibration software. The CTU
can be used with TB7100, TB8100 and TB9100 base stations, and comes
with a selection of connection cables, tuning tools and other accessories
(refer to “Appendix A - CTU Accessories” on page 35).

Note Some features of the CTU are used with only one base station,

while others serve different functions with different base stations.
Any differences in function are explained in each chapter.

This manual describes both the TBA0STU and TBA0STP CTUs. The
only difference between the units is that the TBA0STP was not supplied
with the TB7100 CTU adaptor board. For information on the earlier
TBA0ST1 CTU which was introduced with the TB8100 base station, refer
to TN-778.

8 Introduction TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

TBA0STU/TBA0STP CTU Operation Manual Modification History 9
© Tait Electronics Limited September 2005

2 Modification History

This chapter provides details about any production modifications made to
the CTU that may affect its performance, or the way in which it interacts
with the TB7100, TB8100 or TB9100 base stations.

AC Coupled
Unbalanced Audio
Input

The unbalanced input on the CTU was changed from DC to AC coupled
in August 2005. This modification (fitting a capacitor) was necessary
because the unbalanced input on TB8100 TaitNet and TaitNet RS-232
system interface boards was changed at that time from AC to DC coupled.
This change was made for paging, and the version of these boards was
changed from 0 to 1. If your reciter is fitted with a version 1 TaitNet or
TaitNet RS-232 board, you must use a CTU that is AC coupled. If the
CTU and system interface board are both DC coupled, and the test
equipment is not AC coupled, the DC signal will directly pull the modulator
carrier frequency.

CTUs with the serial number 18012507 and higher incorporate the change
on the PCB, but earlier CTUs must be modified as described in TN-1082.
To check if your CTU has been modified, use a multimeter to check the
continuity between the centre pin of the unbalanced input BNC connector
(UB INPUT) and pin 6 of the 15-way system interface connector (or pin 5
of the 25-way connector). An open circuit indicates the capacitor is fitted,
a short circuit indicates the capacitor is not fitted.

To check the version of a system interface board, run the Service Kit and
select Monitor > Module Details > Reciter. In the Versions area, the
System Interface field displays the version number.

10 Modification History TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB7100 11
© Tait Electronics Limited September 2005

3 Using the CTU with a TB7100

The CTU provides a selection of input and output connectors that allow the
TB7100 base station to be connected to standard test equipment. These
inputs, outputs and associated controls are identified in Figure 3.1 on

page 12, and their functions are explained in the paragraphs which follow.

Some items are not used with the TB7100, and others serve one function
with the TB7100 and another with the TB8100 or TB9100. Any
differences in function are described in the table that accompanies

Figure 3.1. A block diagram of the CTU is provided in Figure B.1 on
page 40.

The CTU is designed to make it easier to tune or calibrate TB7100
modules. It also allows a user to monitor and control the inputs and outputs
available on the TB7100 system interface connector.

Note Digital/programming input switch 6 is used to control Rx Inhibit

in the TB7100. Setting this switch to active will prevent any audio
output from the base station. Be careful not to set this switch by
accident.

Figure 3.2 on page 16 shows a typical connection setup between the CTU

and a TB7100 base station. Refer to the TB7100 Calibration Application
online Help for details on tuning and calibrating TB7100 modules. Refer
also to the TB7100 Installation and Operation Manual for information on
using the CTU to set up the TB7100 for various modes of operation.

12 Using the CTU with a TB7100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Figure 3.1 CTU connections and controls

b

1!

c d efghij

1@1#1$1%1&1*

1(

2)

2!

2@

2#

top view

rear view

1^

1)

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB7100 13
© Tait Electronics Limited September 2005

TB7100 TB8100 TB9100

b

not used programming port serial port

b

c

power LED power LED power LED

c

d

not used noise source output and on/off

switch

noise source output and on/off
switch

d

e

balanced line input balanced line input analog line input

e

f

speaker audio selection switch speaker audio selection switch speaker audio selection switch

f

g

unbalanced line input unbalanced line input not used

g

h

unbalanced line output unbalanced line output not used

h

i

balanced line output balanced line output analog line output

i

j

600Ω load on/off switch 600Ω load on/off switch 600 Ω load on/off switch

j

1)

not used not used system interface connectors

1)

1!

system interface connector

a

system interface connectors not used

1!

1@

digital input switches

b

digital input switches digital input switches

1@

1#

speaker speaker speaker

1#

1$

speaker volume control speaker volume control speaker volume control

1$

1%

RSSI output RSSI output digital output 0

1%

1^

not used digital output LEDs not used

1^

1&

ground connector ground connector ground connector

1&

1*

Tx Relay output and LED Tx Relay output and LED;

digital out 3 (TaitNet)

digital input 4

1*

1(

keying switch for the transmitter keying switch for the transmitter keying switch for the transmitter

1(

2)

Tx Key input Tx Key input Tx Key input

2)

2!

Rx Gate output and LED Rx Gate output and LED Rx Gate output and LED

2!

2@

not used DC input DC input

2@

2#

not used system control bus connector not used

2#

a. The TB7100 uses the 25-way connector with the TB7100 CTU adaptor board (refer to “The TB7100 CTU Adaptor

Board” on page 17).

b. Switches 1 to 4 can be configured as digital inputs or channel select. Switch 6 is used for Rx inhibit. The other switches

are not used. Refer to “DIGITAL/PROGRAMMING INPUTS” on page 15 for more information.

14 Using the CTU with a TB7100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

IOIOI

Not used with TB7100.

POWER The POWER LED is lit when the CTU is powered up. The TB7100

system interface provides power to the CTU over the 25-way system
interface connector

1! (see also Figure 3.2 on page 16) . This supply powers

the noise source, speaker, LEDs, and RS-232 communications.

Connecting power directly to the DC input connector

2@ on the CTU is

unnecessary, but will not damage the CTU.

Note You do not need to provide power to the CTU at all in order to

make audio level measurements or to use the digital inputs and
outputs. Lack of power will not affect these interfaces.

NOISE Not used with TB7100.

LINE INPUT The CTU makes audio at this input available to the TB7100 transmitter (it

connects LINE INPUT to the balanced line input on the system interface
connectors).

UNBALANCED/OFF/
BALANCED

This switch directs either the balanced or unbalanced receiver output audio
to the CTU speaker. When set to “OFF”, no audio is present on the
speaker.

UB INPUT This input is connected to the unbalanced line input on the system interface

connectors.

UB OUTPUT This output is connected to the unbalanced line output on the system

interface connectors. Audio on this line can be monitored on the CTU
speaker.

LINE OUTPUT The CTU makes audio from the TB7100 receiver available on this

connector (it connects LINE OUTPUT to the balanced line output on the
system interface connector). LINE OUTPUT is connected directly to pins
1 & 2 on the connector (i.e. it is not grounded). The audio on LINE
OUTPUT can be monitored on the CTU speaker.

600Ω LOAD This switch connects or disconnects the 600Ω load across the balanced

LINE OUTPUT. This allows the output to be terminated correctly for
calibration procedures. Turn the switch on if the LINE OUTPUT is not
otherwise terminated.

SYSTEM INTERFACE Not used with TB7100.

SYSTEM INTERFACE The 25-way connector is used with the TB7100 CTU adaptor board to

connect to the 25-way connector on the rear of the TB7100.

b

c

d

e

f

g

h

i

j

1)

1!

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB7100 15
© Tait Electronics Limited September 2005

DIGITAL/
PROGRAMMING
INPUTS

These switches let you set the digital inputs into the TB7100 high or low,
and are connected to the digital inputs on the system interface connector.
Switches 1 to 4 can be used for channel selection, and switch 6 is used to
control Rx Inhibit. The remaining switches are not used with the TB7100.

The active state of the digital inputs is defined by the setting in the
Programming Application software (Channel Setup > Programmable I/O >
Digital tab: AUX_GPI1, AUX_GPI2, AUX_GPI3, AUX_GPIO4). The
default setting is non-inverted: 0 = active, 1 = inactive.

Speaker The CTU is fitted with a 0.5W 16 Ω speaker. Audio from LINE OUTPUT

or UB OUTPUT can be connected to this speaker.

VOLUME This controls the volume of the speaker. Rotate clockwise to increase the

volume, and anticlockwise to decrease the volume.

RSSI This output is used to monitor the RSSI output from the 25-way system

interface connector.

DIGITAL OUTPUTS Not used with TB7100.

GND This banana socket can be used as ground with RX GATE, TX KEY and

RSSI. It is connected to the CTU and system interface connector ground.

TX RELAY This output is connected to the Tx Relay output on the 25-way system

interface connector. The LED is lit when the output is activated.

TX KEY Switch Set this switch to “ON” to key the transmitter. When the switch is in the

“OFF” position, applying a signal to the TX KEY banana socket will
control the state of the transmitter.

TX KEY socket Ground this input to key the transmitter. Alternatively, turn on the TX KEY

switch (

1().

RX GATE This output is connected to the Rx Gate output on the system interface

connectors. The adjacent LED is lit when the receiver gate is open.

POWER Not used with TB7100.

SYSTEM CONTROL
BUS

Not used with TB7100.

1@

1#

1$

1%

1^

1&

1*

1(

2)

2!

2@

2#

16 Using the CTU with a TB7100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Figure 3.2 Example CTU connection to a TB7100

25-way cable

TB7100 CTU
adaptor board

Power

System Interface

To PC running

Programming or

Calibration Application

T2000-A19 programming lead

plus TMAA20-04 adaptor

(recommended)

TB7100

CTU

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB7100 17
© Tait Electronics Limited September 2005

The TB7100 CTU
Adaptor Board

You must use the TB7100 CTU adaptor board when connecting a TB7100
base station to the CTU. The CTU adaptor board plugs into the 25-way
system interface connector on the CTU. It is designed to make the I/O of
the TB7100 system interface compatible with the I/O of the CTU system
interface. The LEDs and test points on the adaptor board are described
below.

Figure 3.3 LEDs and test points on the TB7100 CTU adaptor board

b

This red LED indicates the state of the isolated Rx Gate. It can be lit when the gate is open or closed,
depending on the setting of link J401 on the TB7100 system interface board (refer to “Relay Polarity”
in the “Preparation for Operation” chapter in the Installation and Operation Manual).

c

This green LED indicates the status of Rx digital in/out 1 (pin 19 on the TB7100 system interface
connector). It is lit when the line is pulled low.

d

TP2 provides an opto-key input (common ground when using the CTU adaptor board).

e

This green LED indicates the status of Rx digital in/out 2 (pin 22 on the TB7100 system interface
connector). It is lit when the line is pulled low.

f

This orange LED indicates the status of Tx digital in/out 1 (pin 10 on the TB7100 system interface
connector). It is lit when the line is pulled low.

g

This orange LED indicates the status of Tx digital in/out 2 (pin 12 on the TB7100 system interface
connector). It is lit when the line is pulled low.

h

TP4 provides a 13.8V output test point.

b

c

d

e

f

g

h

18 Using the CTU with a TB7100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Note You can also use the TB7100 CTU adaptor board with the earlier

TBA0ST1 and TBA0STP CTUs (using the supplied 25-way
cable). As the adaptor board was not supplied with these CTUs,
you can order it separately under the product code
TBB0STU-TBB. Contact your nearest Tait Dealer or Customer
Service Organisation for more information.

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB8100 19
© Tait Electronics Limited September 2005

4 Using the CTU with a TB8100

The CTU provides a selection of input and output connectors that allow the
TB8100 base station to be connected to standard test equipment, and also
to a PC running the Service Kit or Calibration Kit software. These inputs,
outputs and associated controls are identified in Figure 4.1 on page 20, and
their functions are explained in the paragraphs which follow. Some items
are not used with the TB8100, and others serve one function with the
TB8100 and another with the TB7100 or TB9100. Any differences in
function are described in the table that accompanies Figure 4.1. A block
diagram of the CTU is provided in Figure B.1 on page 40.

The CTU is designed to make it easier to program, tune or calibrate
TB8100 modules. It also allows a user to monitor and control the inputs
and outputs available on the reciter’s system interface connector.

Figure 4.3 on page 26 shows a typical connection setup between the CTU

and a TB8100 base station. Refer to the TB8100 Calibration Kit
documentation for details on how to use the CTU for tuning and calibrating
TB8100 modules.

Important Do not power the CTU from a PMU fitted with a 48V

auxiliary power supply board. The maximum supply volt­age for the CTU is 32VDC. Use either a PMU 12VDC or
24VDC auxiliary output, or an external power supply.
Note that the auxiliary output can be supplied to the CTU
via the system interface connector on the reciter if the aux­iliary DC power cable is fitted, as well as via a direct con­nection to the PMU auxiliary output.

20 Using the CTU with a TB8100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Figure 4.1 CTU connections and controls

b

1!

c d efghij

1@1#1$1%1&1*

1(

2)

2!

2@

2#

top view

rear view

1^

1)

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB8100 21
© Tait Electronics Limited September 2005

TB7100 TB8100 TB9100

b

not used programming port serial port

b

c

power LED power LED power LED

c

d

not used noise source output and on/off

switch

noise source output and on/off
switch

d

e

balanced line input balanced line input analog line input

e

f

speaker audio selection switch speaker audio selection switch speaker audio selection switch

f

g

unbalanced line input unbalanced line input not used

g

h

unbalanced line output unbalanced line output not used

h

i

balanced line output balanced line output analog line output

i

j

600Ω load on/off switch 600Ω load on/off switch 600 Ω load on/off switch

j

1)

not used not used system interface connectors

1)

1!

system interface connector

a

system interface connectors not used

1!

1@

digital input switches

b

digital input switches digital input switches

1@

1#

speaker speaker speaker

1#

1$

speaker volume control speaker volume control speaker volume control

1$

1%

RSSI output RSSI output digital output 0

1%

1^

not used digital output LEDs not used

1^

1&

ground connector ground connector ground connector

1&

1*

Tx Relay output and LED Tx Relay output and LED;

digital out 3 (TaitNet)

digital input 4

1*

1(

keying switch for the transmitter keying switch for the transmitter keying switch for the transmitter

1(

2)

Tx Key input Tx Key input Tx Key input

2)

2!

Rx Gate output and LED Rx Gate output and LED Rx Gate output and LED

2!

2@

not used DC input DC input

2@

2#

not used system control bus connector not used

2#

a. The TB7100 uses the 25-way connector with the TB7100 CTU adaptor board (refer to “The TB7100 CTU Adaptor

Board” on page 17).

b. Switches 1 to 4 can be configured as digital inputs or channel select. Switch 6 is used for Rx inhibit. The other switches

are not used. Refer to “DIGITAL/PROGRAMMING INPUTS” on page 15 for more information.

22 Using the CTU with a TB8100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

IOIOI

This is an RS-232 serial port. Connect it to a PC running the Service Kit
or Calibration Kit software when calibrating or tuning the base station. You
must also connect a system control bus cable between the CTU (via
connector

2#) and the reciter for this interface to work.

POWER The POWER LED is lit when the CTU is powered up. You can supply

power to the CTU in the following ways (see Figure 4.3 on page 26):

■ connect power directly using the DC input socket 2@

■ let the reciter provide power over the system control bus connector 2#

■ let the reciter’s system interface provide power over the system interface

connector

1!. This requires that you connect power to the reciter’s

auxiliary DC input connector adjacent to the system interface.

You can safely connect power to two or more of these connectors at the
same time.

Note You do not need to provide power to the CTU at all in order to

make audio level measurements or to use the digital inputs and
outputs. Lack of power will not affect these interfaces.

Important Do not power the CTU from a PMU fitted with a 48V

auxiliary power supply board. The maximum supply volt­age for the CTU is 32VDC. Use either a PMU 12VDC or
24VDC auxiliary output, or an external power supply.
Note that the auxiliary output can be supplied to the CTU
via the system interface connector on the reciter if the aux­iliary DC power cable is fitted, as well as via a direct con­nection to the PMU auxiliary output.

NOISE The CTU’s internal, wide bandwidth noise source is available on this

output. You can connect the NOISE socket to the RF input on the reciter
and use it to tune the receiver’s front end. The adjacent switch turns the
noise on and off. The bandwidth of the noise source is approximately
50MHz to 1GHz, and the output level is approximately – 130dBm/Hz.
This output level is equivalent to –91dBm typical for a narrow bandwidth
receiver, –89 dBm typical for mid bandwidth, and – 88 dBm typical for wide
bandwidth.

LINE INPUT The CTU makes audio at this input available to the TB8100 transmitter (it

connects LINE INPUT to the balanced line input on the system interface
connectors).

UNBALANCED/OFF/
BALANCED

This switch directs either the balanced or unbalanced receiver output audio
to the CTU speaker. When set to “OFF”, no audio is present on the
speaker.

b

c

d

e

f

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB8100 23
© Tait Electronics Limited September 2005

UB INPUT

This input is connected to the unbalanced line input on the system interface
connectors.

Note In August 2005, the unbalanced input on the CTU was changed

from DC to AC coupled. Refer to “AC Coupled Unbalanced

Audio Input” on page 9 for more details.

UB OUTPUT This output is connected to the unbalanced line output on the system

interface connectors. Audio on this line can be monitored on the CTU
speaker.

LINE OUTPUT The CTU makes audio from the TB8100 receiver available on this

connector (it connects LINE OUTPUT to the balanced line output on the
system interface connectors). LINE OUTPUT is connected directly to pins
1 & 2 on the connectors (i.e. it is not grounded). The audio on LINE
OUTPUT can be monitored on the CTU speaker.

600Ω LOAD This switch connects or disconnects the 600Ω load across the balanced

LINE OUTPUT. This allows the output to be terminated correctly for
calibration procedures. Turn the switch on if the LINE OUTPUT is not
otherwise terminated.

SYSTEM INTERFACE Not used with TB8100.

SYSTEM INTERFACE These connect to the 25-way or 15-way system interface connector on the

rear of the reciter.

DIGITAL/
PROGRAMMING
INPUTS

These switches let you set the digital inputs into the TB8100 high or low.
The switches are connected to the digital inputs on the system interface
connectors, as described in the table below. The standard switch settings are
as follows:

1 = high, inactive, 5V (10 k Ω pull-up to 5V)
0 = low, active, 0V

The CTU is a generic test unit, so not all digital I/O lines can be exercised
or monitored. This applies in particular to the ability to monitor
bidirectional I/O lines, as these are connected only to switches, not LEDs
(see also DIGITAL OUTPUTS

1^).

g

h

i

j

1)

1!

1@

24 Using the CTU with a TB8100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Note The complete lists of pin allocations for each system interface

board are provided in the Installation Guide, Installation and
Operation Manual, or Service Kit (Configure > Base Station >
System Interface).

External Channel Selection

Digital inputs can be used for external channel selection. The active state
of the digital inputs, when used for channel selection, is defined by the
setting in the Service Kit software (Configure > Base Station > System
Interface > Channel Selection > Invert). The default setting is non­inverted: 0 = active, 1 = inactive. Refer to the Service Kit documentation
for details on how to configure external channel selection.

Bidirectional Inputs/Outputs

Bidirectional signals (e.g. digital in/out 3) can operate as either digital inputs
or digital outputs, based on how Task Manager is configured. Bidirectional
signals use the same Task Manager processes to set and read the status of
digital inputs and outputs. When a bidirectional pin has its output activated,
reading the input status of that pin will reflect the current status on that line.
Thus, it is possible to use a bidirectional pin for input-only or output-only
actions, if only that specific action is configured for that digital pin number
in Task Manager.

CTU
Switch

System Interface Board

Pin Isolated Isolated E&M

Ta it N e t/
Tai t Ne t R S- 23 2

1 14 digital in 1 digital in 1 digital in 1

2 15 digital in 2 digital in 2 –––

3 16 digital in/out 3 digital in/out 3 –––

4 17 digital in/out 4 digital in/out 4 –––

5 18 digital in/out 5 digital in/out 5 –––

6 19 digital in/out 6 digital in/out 6 –––

7 20 digital in 7 ––– –––

8 21 digital in 8 ––– –––

9 22 digital in 9 ––– –––

10 23 digital in 10 ––– –––

Figure 4.2 System interface bidirectional inputs/outputs

Task Manager

Bidirectional I/O Line

System Interface
Connector

Task Manager

Output

Input

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB8100 25
© Tait Electronics Limited September 2005

Speaker

The CTU is fitted with a 0.5W 16Ω speaker. Audio from LINE OUTPUT
or UB OUTPUT can be connected to this speaker.

VOLUME This controls the volume of the speaker. Rotate clockwise to increase the

volume, and anticlockwise to decrease the volume.

RSSI This output is used to monitor the RSSI output from the 25-way system

interface connector. (Not available if the system interface connector is
15-way.)

DIGITAL OUTPUTS These LEDs indicate the status of the digital output lines on the system

interface connectors, as described in the table below. They are lit when the
digital output lines are active. Note that the table only shows the digital
outputs which can be monitored by the LEDs.

GND This banana socket can be used as ground with RX GATE, TX KEY and

RSSI. It is connected to the CTU and system interface connector ground.

TX RELAY This output is connected to the Tx Relay output on the 25-way system

interface connector, and to digital output 3 on the 15-way system interface
connector. The LED is lit when the output is activated.

TX KEY Switch Set this switch to “ON” to key the transmitter. When the switch is in the

“OFF” position, applying a signal to the TX KEY banana socket will
control the state of the transmitter.

TX KEY socket Ground this input to key the transmitter. Alternatively, turn on the TX KEY

switch (

1().

RX GATE This output is connected to the Rx Gate output on the system interface

connectors. The adjacent LED is lit when the receiver gate is open.

POWER Connect a 10 to 32VDC power supply to this input. This supply powers

the noise source, speaker, LEDs, and RS-232 communications.

This DC input connector is not used if power is supplied via the system
control bus or system interface connectors.

1#

1$

1%

1^

CTU
LED

System Interface Board

Isolated Isolated E&M

Ta it N e t/
Tai t Ne t R S- 23 2

1 pin 11 - digital out 1 pin 11 - digital out 1 pin 12 - digital out 1

2 pin 12 - digital out 2 pin 12 - digital out 2 pin 13 - digital out 2

1&

1*

1(

2)

2!

2@

26 Using the CTU with a TB8100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Important Do not power the CTU from a PMU fitted with a 48V

auxiliary power supply board. The maximum supply volt­age for the CTU is 32VDC. Use either a PMU 12VDC or
24VDC auxiliary output, or an external power supply.
Note that the auxiliary output can be supplied to the CTU
via the system interface connector on the reciter if the aux­iliary DC power cable is fitted, as well as via a direct con­nection to the PMU auxiliary output.

SYSTEM CONTROL
BUS

This connects to the system control bus connector on the front of the reciter
for tuning, calibration and programming. You can also calibrate a PA when
it is linked to a reciter and CTU via the system control bus.

Note If you need to make your own system control bus cable, the rec-

ommended maximum length of the cable is one metre (39 inches).

2#

Figure 4.3 Example CTU connection to a TB8100 reciter

Power

25-way cable

16-way cable

15-way cable (TaitNet)

RS-232

Power

System Interface

Auxiliary Power
from PMU

(12 or 24V Only)

To PC running

Service Kit or

Calibration Kit

System Control Bus

CTU

Reciter

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB9100 27
© Tait Electronics Limited September 2005

5 Using the CTU with a TB9100

The CTU provides a selection of input and output connectors that allow the
TB9100 base station to be connected to standard test equipment, and also
to a PC running the Customer Service Software or Calibration Software.
These inputs, outputs and associated controls are identified in Figure 5.1 on

page 28, and their functions are explained in the paragraphs which follow.

Some items are not used with the TB9100, and others serve one function
with the TB9100 and another with the TB7100 or TB8100. Any
differences in function are described in the table that accompanies

Figure 5.1. A block diagram of the CTU is provided in Figure B.1 on
page 40.

The CTU is designed to make it easier to program, tune or calibrate
TB9100 modules. It also allows a user to monitor the digital output and
control the digital inputs on the reciter’s 9-way DIG D-range connector.

Figure 5.2 on page 33 shows a typical connection setup between the CTU

and a TB9100 base station. Refer to the TB9100 Calibration Software
documentation for details on how to use the CTU for tuning and calibrating
TB9100 modules.

28 Using the CTU with a TB9100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Figure 5.1 CTU connections and controls

b

1!

c d efghij

1@1#1$1%1&1*

1(

2)

2!

2@

2#

top view

rear view

1^

1)

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB9100 29
© Tait Electronics Limited September 2005

TB7100 TB8100 TB9100

b

not used programming port serial port

b

c

power LED power LED power LED

c

d

not used noise source output and on/off

switch

noise source output and on/off
switch

d

e

balanced line input balanced line input analog line input

e

f

speaker audio selection switch speaker audio selection switch speaker audio selection switch

f

g

unbalanced line input unbalanced line input not used

g

h

unbalanced line output unbalanced line output not used

h

i

balanced line output balanced line output analog line output

i

j

600Ω load on/off switch 600Ω load on/off switch 600 Ω load on/off switch

j

1)

not used not used system interface connectors

1)

1!

system interface connector

a

system interface connectors not used

1!

1@

digital input switches

b

digital input switches digital input switches

1@

1#

speaker speaker speaker

1#

1$

speaker volume control speaker volume control speaker volume control

1$

1%

RSSI output RSSI output digital output 0

1%

1^

not used digital output LEDs not used

1^

1&

ground connector ground connector ground connector

1&

1*

Tx Relay output and LED Tx Relay output and LED;

digital out 3 (TaitNet)

digital input 4

1*

1(

keying switch for the transmitter keying switch for the transmitter keying switch for the transmitter

1(

2)

Tx Key input Tx Key input Tx Key input

2)

2!

Rx Gate output and LED Rx Gate output and LED Rx Gate output and LED

2!

2@

not used DC input DC input

2@

2#

not used system control bus connector not used

2#

a. The TB7100 uses the 25-way connector with the TB7100 CTU adaptor board (refer to “The TB7100 CTU Adaptor

Board” on page 17).

b. Switches 1 to 4 can be configured as digital inputs or channel select. Switch 6 is used for Rx inhibit. The other switches

are not used. Refer to “DIGITAL/PROGRAMMING INPUTS” on page 15 for more information.

30 Using the CTU with a TB9100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

IOIOI

This is an RS-232 serial port. Connect it to a PC running the calibration
software when calibrating or tuning the base station.

POWER The POWER LED is lit when the CTU is powered up. Power to the CTU

is supplied using the POWER socket (see

2@ below).

Note You do not need to provide power to the CTU at all in order to

make audio level measurements, or to use the digital inputs and
outputs. Lack of power will not affect these interfaces.

Important Do not power the CTU from a PMU fitted with a 48V

auxiliary power supply board. The maximum supply volt­age for the CTU is 32VDC. Use either a PMU 12VDC or
24VDC auxiliary output, or an external power supply.

NOISE The CTU’s internal, wide bandwidth noise source is available on this

output. You can connect the NOISE socket to the RF input on the reciter
and use it to tune the receiver’s front end. The adjacent switch turns the
noise on and off. The bandwidth of the noise source is approximately
50MHz to 1GHz, and the output level is approximately – 130dBm/Hz.
This output level is equivalent to –91dBm typical for a narrow bandwidth
receiver, –89 dBm typical for mid bandwidth, and – 88 dBm typical for wide
bandwidth.

LINE INPUT The CTU makes audio at this input available to the TB9100 transmitter (it

connects LINE INPUT to the analog RJ45 connector).

UNBALANCED/OFF/
BALANCED

Selects which audio output is sent to the CTU speaker. Select
“BALANCED” to direct the audio on LINE OUTPUT to the speaker. If
you select “OFF”, no audio is present on the speaker.

UB INPUT Not used with TB9100.

UB OUTPUT Not used with TB9100.

LINE OUTPUT The CTU makes audio from the TB9100 receiver available on this

connector (it connects LINE OUTPUT to the balanced line output on the
analog RJ45 system interface connector). LINE OUTPUT is connected
directly to pins 1 & 2 (i.e. it is not grounded). The audio on LINE
OUTPUT can also be monitored on the CTU speaker.

b

c

d

e

f

g

h

i

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB9100 31
© Tait Electronics Limited September 2005

600Ω LOAD

This switch connects or disconnects the 600Ω load across the LINE
OUTPUT. This allows the output to be terminated correctly for calibration
procedures. Turn the switch on if the LINE OUTPUT socket is not
otherwise terminated.

SYSTEM INTERFACE The RJ45 connector is used for the analog line and the 9-way connector is

used for digital I/O. Connect the RJ45 to the RJ45 AUD connector on the
reciter and the 9-way connector to the 9-way DIG connector on the reciter.

SYSTEM INTERFACE Not used with TB9100.

DIGITAL/
PROGRAMMING
INPUTS

These switches let you set the digital inputs into the TB9100 high or low.
Only the first four are used with TB9100. These switches are connected to
the digital input lines on the 9-way system interface connector. Digital
inputs can be used for external channel selection. Refer to the Customer
Service Software documentation for details on how to configure this.

Note The TB9100 digital inputs are numbered 0 to 4 on the CSS,

which correspond to digital inputs 1 to 4 and TX RELAY on the
CTU.

Set the switch to position “1” to set the digital input high. Set the switch to
position “0” to set the digital input low.

Speaker The CTU is fitted with a 0.5 W 16Ω speaker. Audio from LINE OUTPUT

can be connected to this speaker.

VOLUME This controls the volume of the speaker. Rotate clockwise to increase the

volume, and anticlockwise to decrease the volume.

RSSI This banana socket is used as digital output 0 by the TB9100.

DIGITAL OUTPUTS Not used with TB9100.

j

1)

1!

1@

TB9100 Digital Input CTU Digital Input

0Switch 1

1Switch 2

2Switch 3

3Switch 4

4 TX RELAY (see

1*)

1#

1$

1%

1^

32 Using the CTU with a TB9100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

GND

This banana socket can be used as ground with RX GATE, TX KEY, RSSI,
and TX RELAY. It is connected to the CTU and system interface connector
ground.

TX RELAY This banana socket is used by the TB9100 as digital input 4. Ground this

input to set the input low. The LED alongside is not used by the TB9100.

TX KEY switch Set this switch to “ON” to key the transmitter. When the switch is in the

“OFF” position, applying a signal to the TX KEY banana socket will
control the state of the transmitter.

TX KEY socket Ground this input to key the transmitter. Alternatively, turn on the TX KEY

switch (

1().

RX GATE This LED is lit when the base station puts audio on the analog line. The

adjacent socket is connected to the Rx Gate output (E & M output) on the
analog RJ45 SYSTEM INTERFACE connector.

POWER Connect a 10 to 32VDC power supply to this input. This supply powers the

noise source, speaker, LEDs, and RS-232 communications.

Important Do not power the CTU from a PMU fitted with a 48V

auxiliary power supply board. The maximum supply volt­age for the CTU is 32VDC. Use either a PMU 12VDC or
24VDC auxiliary output, or an external power supply.

SYSTEM CONTROL
BUS

Not used with TB9100.

1&

1*

1(

2)

2!

2@

2#

TBA0STU/TBA0STP CTU Operation Manual Using the CTU with a TB9100 33
© Tait Electronics Limited September 2005

Figure 5.2 Example CTU connection to a TB9100 reciter

Power

AUD

ETH

RJ45

RS-232

Ethernet

RS-232

DIG

Power

Audio/Signalling

RS-232/Signalling

To PC running

Calibration Software

To PC running Customer Service Software
(Refer to the TB9100 CSS User’s Manual
or Installation and Operation Manual for
more details on this connection.)

CTU

Reciter

34 Using the CTU with a TB9100 TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

TBA0STU/TBA0STP CTU Operation Manual Appendix A - CTU Accessories 35
© Tait Electronics Limited September 2005

Appendix A - CTU Accessories

The TBA0STU base station CTU is supplied with the following accessories:

■ a selection of cables which allow the CTU to be connected to a TB7100,

TB8100, or TB9100 base station

■ an adaptor board for connecting the CTU to a TB7100 base station

■ DC power cables

■ a DC power connector for use with the PMU auxiliary DC output (refer

to “Using a PMU to Power the CTU” on page 37)

■ tuning tools.

These accessories are described and identified in Figure A.1 on page 36.

36 Appendix A - CTU Accessories TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Figure A.1 Accessories supplied with the TBA0STU base station CTU

Part Number Description

TB7100

TB8100

TB9100

b

219-03003-00 RJ45 cable ✓

c

219-02893-00 SMA-to-N-type cable ✓✓

d

219-02892-00 BNC-to-BNC cable ✓✓✓

e

TBB0STU-TBB TB7100 CTU adaptor board for use with 25-way cable ✓

f

240-00022-11 power connector for PMU auxiliary DC output ✓✓

g

219-02888-00 25-way cable (D-range) ✓✓

h

219-02889-00 15-way cable (TaitNet D-range) ✓

i

219-02890-00 16-way cable (system control bus) ✓✓

j

219-02891-00 DC power cables ✓✓

1)

937-00012-00 tuning tool (Murata ceramic) ✓✓✓

1!

937-00013-00 tuning tool (Johanson 8777) ✓✓

b

c

d

e

f

g

h

i

j

1)

1!

TBA0STU/TBA0STP CTU Operation Manual Appendix A - CTU Accessories 37
© Tait Electronics Limited September 2005

Using a PMU to
Power the CTU

The CTU can be powered from the auxiliary DC output at the rear of the
PMU

1

. Connect the CTU to the PMU using one of the supplied DC

power cables

j fitted with the supplied power connector f (as shown in

Figure A.1).

The pin allocations for the 2-way auxiliary DC output connector on the
PMU

2

are given in the following table.

Important Do not power the CTU from a PMU fitted with a 48V

auxiliary power supply board. The maximum supply volt­age for the CTU is 32VDC. Use either a PMU 12VDC or
24VDC auxiliary output, or an external power supply.
Note that the auxiliary output can be supplied to the CTU
via the system interface connector on the reciter if the aux­iliary DC power cable is fitted, as well as via a direct con­nection to the PMU auxiliary output.

1. The PMU must be fitted with an optional auxiliary power supply board.

2. This type of connector is fitted to PMUs manufactured from August 2004
onwards .

Pin Description

1 +V output

2 ground

2-way connector - external view

b

c

38 Appendix A - CTU Accessories TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

TBA0STU/TBA0STP CTU Operation Manual Appendix B - CTU Block Diagram 39
© Tait Electronics Limited September 2005

Appendix B - CTU Block Diagram

A block diagram of the CTU is provided on following page.

40 Appendix B - CTU Block Diagram TBA0STU/TBA0STP CTU Operation Manual

© Tait Electronics Limited September 2005

Figure B.1 CTU Block Diagram

Power
Supply

Noise

Source

Buffer

600Ω

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

14 14 4

6

7

8

15

16

17

18

19

20

21

22

23

11 12

12 13

10

System
Control Bus

Rx Gate Output

Tx Data Output

Rx Data Input

Tx Key Input**

RSSI Output

Tx Relay Output

Ground

94 7

2

3

2

10 5

9

1

8

24

25 15 5 8

1

2

3

4

5

6

7

8

9

10

22 4

3

3

3

4

56

78

6

25 15 9 RJ

75

6

11

13 9

1

Speaker

Amplifier

Speaker

Switch

High

Impedance

Buffer

High

Impedance

Buffer

+V

+V

+V

+V

Balanced

Line Input

Unbalanced

Line Input

Unbalanced
Line Output

Balanced

Line Output

Noise Source

Output

Programming

Port

Rx Gate Output

Tx Key Input

RSSI Output

Tx Relay Output

DC Input

Tx Line +

Tx Line –

Tx Audio

Rx Audio

Rx Line –

Rx Line +

+8V Supply**

+8V

+AUX_V Output

Digital Output 1

Digital Output 2

Digital Inputs

Digital Output 3
Digital Input 4

Digital Output 0

Audio Ground

System Interface Connector
Pin Allocations*

CTU Inputs

& Outputs

OFF

ON

+V

OFF

ON

*25 = 25-way D-range, 15 = 15-way D-range,

9 = 9-way D-range, RJ = RJ45

* +8V Supply and Tx Key Input work in conjunction to

provide the TB9100 channel seize input. Together
they serve the “E” function of the E&M interface.

*