TB7100 base station TB8100 base station TB9100 base station TBA0STU / TBA0STP Calibration and Test Unit Operation Manual MBA-00013-01 Issue 1 September 2005
Tait Contact Information Tait Radio Communications Corporate Head Office Tait Electronics Ltd P.O. Box 1645 Christchurch New Zealand Technical Support For assistance with specific technical issues, contact Technical Support: E-mail: support@taitworld.com Website: http://support.taitworld.com For the address and telephone number of regional offices, refer to the TaitWorld website: Website: http://www.taitworld.
Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Enquiries and Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Updates of Manual and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Copyright . . . . . . . . . . . . .
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.
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 to warn about the risk of equipment damage or malfunction.
Publication Record Issue 1 6 Publication Date September 2005 Description First release TBA0STU/TBA0STP CTU Operation Manual © Tait Electronics Limited September 2005
1 Introduction 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).
Introduction TBA0STU/TBA0STP CTU Operation Manual © 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.
Modification History TBA0STU/TBA0STP CTU Operation Manual © 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.
Figure 3.
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 l
b IOIOI Not used with TB7100. c 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.
1@ 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.
Figure 3.
The TB7100 CTU Adaptor Board Figure 3.3 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.
Note 18 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.
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.
Figure 4.
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 l
b 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. c 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.
g 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. h 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.
System Interface Board CTU Switch Pin Isolated Isolated E&M TaitNet/ TaitNet RS-232 1 14 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 ––– ––– Note digital in 1 The comple
1# Speaker The CTU is fitted with a 0.5W 16Ω speaker. Audio from LINE OUTPUT or UB OUTPUT can be connected to this speaker. 1$ VOLUME This controls the volume of the speaker. Rotate clockwise to increase the volume, and anticlockwise to decrease the volume. 1% 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.
Important 2# 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. SYSTEM CONTROL BUS Note Figure 4.3 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.
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.
Figure 5.
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 l
b IOIOI This is an RS-232 serial port. Connect it to a PC running the calibration software when calibrating or tuning the base station. c 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.
j 600Ω LOAD This switch connects or disconnects the 600 Ω 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. 1) 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.
1& 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. 1* 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. 1( TX KEY switch Set this switch to “ON” to key the transmitter.
Figure 5.2 Example CTU connection to a TB9100 reciter 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.
Using the CTU with a TB9100 TBA0STU/TBA0STP CTU Operation Manual © 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.
Figure A.
Using a PMU to Power the CTU The CTU can be powered from the auxiliary DC output at the rear of the PMU1. 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 PMU2 are given in the following table.
Appendix A - CTU Accessories TBA0STU/TBA0STP CTU Operation Manual © Tait Electronics Limited September 2005
Appendix B - CTU Block Diagram A block diagram of the CTU is provided on following page.
Figure B.
