5 Installation This chapter provides information on the site requirements for your TB9300 equipment and also describes how to install the base station in a standard 19 inch rack or cabinet. If this is your first time installing a TB9300 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 The base station modules are grounded by physical contact between the module case and the subrack.
5.1.5 Cabinet and Rack Ventilation The cooling airflow for the base station 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 base station must not be allowed to reenter 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. Refer to Figure 5.1 on page 70.
Figure 5.1 Typical cabinet ventilation requirements top view b 8in (20cm) side view front view 2U c e d ≥7in (≥17.
.2 Unpacking and Moving the Subrack The subrack is packed in a strong corrugated cardboard carton with top and bottom foam cushions. To prevent personal injury and damage to the equipment, we recommend that two people unpack and move the subrack. To remove the subrack from the carton, follow the procedure illustrated in Figure 5.2. Caution A subrack complete with modules can weigh up to 62lb (28kg), or up to 66lb (30kg) complete with packaging.
3. 4. Slide the carton upwards over the foam cushions and lift it away e. Remove the cushion from the bottom of the subrack f. Rotate the subrack and cushion carefully over the rear of the subrack g so that it is the right way up with the cushion on top h. Remove the cushion from the top of the subrack i. Disposal of Packaging 72 Installation If you do not need to keep the packaging, we recommend that you recycle it according to your local recycling methods.
5.3 Identifying the Equipment You can identify the model and hardware configuration of the TB9300 modules by referring to the product code printed on labels at the rear of each module. The meaning of each character in the product code is explained in the tables below. This explanation of product codes is not intended to suggest that any combination of features is necessarily available in any one product.
PMU Product Codes 74 Installation Product Code Description TBAXXXX-XXXX 3 = PMU TBA3XXX-XXXX 0 = default TBA3XXX-XXXX 0 = AC module not fitted A = AC module fitted TBA3XXX-XXXX 0 = DC module not fitted 1 = 12V DC module fitted 2 = 24V DC module fitted 4 = 48V DC module fitted TBA3XXX-XXXX 0 = standby power supply card not fitted 1 = 12VDC standby power supply card fitted 2 = 24VDC standby power supply card fitted 4 = 48VDC standby power supply card fitted TBA3XXX-XXXX 0 = auxiliary power sup
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: 5.4.
Functional Tests Test The following table provides an overview of the tests available using the web interface. Refer to the Help for full details of these tests.
5.4.2 Customizing the Configuration The following steps provide an overview of the process used to configure the base station with the settings it needs. Refer to the Help for detailed information. 1. Log in to the base station (refer to “Connecting Your PC to the Base Station” on page 50 for more details). 2. Select Configure. The base station has many different settings that can be configured before it is put into operation, such as: 3.
5.4.4 Restricted Port Numbers Certain configuration settings in the base station’s web interface require you to enter a port number (for example, the trunking interface). Two ranges of port numbers are unavailable for use with the base station. The web interface will prevent you from entering a number from these ranges, as explained below. Restricted Port Numbers 5.4.5 Details 0 – 1023 The “well-known ports”, commonly used by other devices in a network.
5.4.6 B-Band Tuning the Reciter Before the base station is installed on site, you may need to tune the receiver front end. The receiver front end requires tuning if the receive frequency is shifted more than 2MHz away from the previously set frequency, or the RSSI level of the new frequency is more than 1dB lower than the RSSI level of the previously set frequency.
Tait can provide extender cables (TBC Reciter Power Cables) to enable tuning with a subrack or from a bench power supply. To order these, the part number is T01-01150-0001. 1. Log in to the reciter and select Monitor > Interfaces > RF Interface. For information on connecting directly to the reciter, refer to “Connecting a Networked PC to a Base Station” on page 54. 2. Feed a signal at the currently tuned receive frequency and at a level of –80dBm into the reciter’s RF input.
H-Band Before the base station is installed on site, you may need to tune the receiver front end. The receiver front end requires tuning if the receive frequency is shifted more than 5MHz away from the previously set frequency, or the RSSI level of the new frequency is more than 1dB lower than the RSSI level of the previously set frequency. Tait can provide extender cables (TBC Reciter Power Cables) to enable tuning with a subrack or from a bench power supply.
82 Installation 3. Feed a signal at the currently tuned receive frequency and at a level of –80dBm into the reciter’s RF input. Check that the RSSI reading on the RF Interface page is –80dBm ±1dB. Note this reading. 4. Set the reciter to the new receive frequency.
5. Change the RF input signal to the new receive frequency at –80dBm. Check that the RSSI reading is –80dBm ±1dB. If it is, the receiver front end does not require tuning. If it is not, go to the next step. 6. Using the Johanson tuning tool1, adjust the helical filter for the new frequency (as shown in Figure 5.4) to obtain a peak RSSI reading. This reading should be within 1dB of the reading at the previous frequency.
5.5 Installing the Base Station on Site 5.5.1 General Installation Advice When installing base stations, it is very important to observe good site engineering rules. This is especially true when the channels are combined into a single antenna. If at all possible, the RF planner should avoid frequency plans in which the Rx to Tx spacing is an exact multiple of the trunked channel spacing, thus forcing Tx intermodulation products to fall outside the Rx channels.
5.5.3 Mounting the Subrack Caution A subrack complete with modules can weigh up to 62lb (28kg), or up to 66lb (30kg) complete with packaging. We recommend that you have another person help you unpack and move the equipment. The TBAA03-16 carrying handles will make it easier to move the equipment once it has been unpacked. If necessary, remove the modules from the subrack before moving it (refer to “Replacing Modules” on page 100). In all cases follow safe lifting practices. Figure 5.
Figure 5.6 below gives the dimensions of the subrack and its mounting holes. Figure 5.6 Subrack dimensions 17 in (432 mm) 14.8 in (375.5 mm) 4 in 6.96 in (176.8 mm) (101.6 mm) 19 in (482.6 mm) 14.7 in (373.5 mm) 18.3 in (465.1 mm) 14.37 in (365 mm) 0.42 in (10.6 mm) 5.25 in (133.4 mm) 0.26 in (6.
Auxiliary Support Bracket TBAA03-13 auxiliary support brackets can be fitted to the rear of the subrack to provide additional mounting security. Figure 5.7 shows a standard TBAA03-13 bracket b fitted in a typical Tait cabinet c. If you are not using the Tait cabinet, you may have to make your own brackets to suit your installation. Figure 5.7 Auxiliary support bracket b c Notice You must fit the auxiliary support brackets if you intend to transport a cabinet fitted with a fully built-up base station.
DC Power Cabling DC power cables should be well supported so that the terminals on the PMU and on the ends of the cables do not have to support the full weight of the cables. Figure 5.8 shows two recommended methods of securing these cables to prevent straining either set of terminals. We recommend that you fit the supplied covers to the DC terminals to protect against accidental shorts. Figure 5.
5.6 Connecting Up the Base Station This section provides information relevant to the task of connecting up the various inputs and outputs of the base station. 5.6.1 Connection Overview The connections at the rear of a dual 50W base station are identified in Figure 5.9. External connections are all located at the rear of the subrack. Figure 5.
5.6.2 Connecting AC Power The PMU is designed to accept a mains input of 88 to 264VAC at 45 to 65Hz. A standard 3-wire grounded socket outlet must be used to supply the AC power. The socket outlet must be installed near the equipment and must be easily accessible. This outlet should be connected to an AC power supply capable of providing at least 600W. The requirements of two typical AC supplies are given in the following table.
5.6.3 Connecting DC Power The PMU is designed to accept a nominal 12VDC, 24VDC or 48VDC input (depending on the model) with negative or positive ground. There is a minimum DC startup threshold to prevent damaging a battery which has little capacity left. You must connect the DC supply from the battery to the PMU via a fuse or DC-rated circuit breaker with the appropriate rating, as shown in the table below.
5.6.4 Connecting the Auxiliary DC Power Output The PMU can provide an auxiliary DC output from the auxiliary power supply board. This board is available with an output of 13.65VDC, 27.3VDC, or 54.6VDC (depending on the model), and is current limited to 3A, 1.5A or 750mA respectively. This power supply is permanently on as soon as the base station has finished powering up, and is available on the auxiliary output connector on the rear panel.
5.6.5 Connecting RF Notice Do not remove the load from the PA while it is transmitting as this may damage the PA output stage. Before disconnecting any RF cables, put the base station into Offline mode to prevent any transmissions. The RF input to the base station is via the marked 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 5.9 on page 89). Cables and antennas should be of high quality construction.
5.6.6 Connecting an External Frequency Reference An external reference frequency is not normally required for B band. However, an external reference can be used when you need to maximize the range of the base station. For K4 band, the internal frequency reference accuracy is inadequate, and an external reference must be used. The external reference frequency can be 10MHz or 12.8MHz, with an input level of 300mVpp to 5V pp. The stability of this reference should be better than 100 parts per billion.
5.6.7 Ethernet Connection The RJ-45 socket on the reciter’s rear panel provides the 1-BASE-T or 100BASE-T Ethernet connection to the other devices in the network. Use a Cat-5 cable to connect this socket to the Tait Network via a router or switch. The Web UI allows you to set the Ethernet port speed auto-negotiation to 10/100 Mbit/s or to negotiate a maximum 10 Mbit/s. Tait recommends that you keep the port speed at the factory default setting of 10 Mbit/s.
5.6.8 Connecting General Purpose Inputs and Outputs The base station has a number of general purpose inputs and outputs. These are connected via the 25-way D-range on the rear panel. The pin allocations for the D-range connector are given in the following table. Not all pins are used in this release of the base station.
6 Maintenance The base station is designed to be very reliable and should require little maintenance. However, performing regular checks will prolong the life of the equipment and prevent problems from happening. It is beyond the scope of this manual to list every check that you should perform on your base station. The type and frequency of maintenance checks will depend on the location and type of your system.
Cooling Fans 98 Maintenance The cooling fans have a long service life and have no special maintenance requirements. You can use the web interface to configure the base station to generate an alarm if any of the front panel cooling fans fails. Refer to the Help for more details.
7 Troubleshooting Check that all front and rear connectors and cables are in place, and that power switches are on. If problems persist, contact your regional Tait office. Symptom Possible Cause Action Alarm LED red and steady The base station is in (not flashing) Offline mode Use the web interface to put the base station in Online mode Alarm LED flashing One or more faults are present Use the web interface to identify the faulty module Alarm LED flashing, display shows “Please wait...
8 Replacing Modules Caution The PA and PMU weigh between 10.1lb (4.6kg) and 15.4lb (7kg) each. Take care when handling these modules to avoid personal injury. Notice 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. To ensure adequate airflow through the base station, do not operate it for more than a few minutes with the front panel removed (e.g. for servicing purposes).
8.1 Saving the Base Station’s Configuration Before replacing a module in the base station, you should decide whether you need to save its configuration data. If you are unsure whether you have a record of the configuration, backup and save the configuration file before removing any modules. Once you have replaced the module, you will be able to restore the original configuration to the base station. If one or more of the modules is faulty, you may be unable to save the configuration.
8.2 Preliminary Disassembly Hot-pluggable Modules The reciter, PA and front panel are hot-pluggable and can be removed without powering down the whole base station. These modules can also be removed without disrupting the system control bus communications with the other modules in the subrack. Notice Before removing a PA, disconnect the DC input and RF input first, followed by the RF output. After refitting the PA, reconnect the RF output first, followed by the RF input, and then the DC input.
Remove the Front Panel 1. Using a Pozidriv PZ2 screwdriver, undo the fastener at each end of the front panel b with a quarter turn counterclockwise. c unlocked locked b 2. Cable Retaining Clips Place a finger in the recess c provided at each end of the front panel and pull the front panel away from the subrack.
8.3 Replacing a Reciter Removal 1. If you have not already done so, carry out the instructions in “Preliminary Disassembly” on page 102. 2. At the rear of the reciter, unplug the RF input cable b, any system cables c, and the external reference d and 1PPS e cables (if fitted). 3. At the front of the reciter, unplug the RF output cable f, and move it to one side. Unplug both ends of the system control bus cable g and remove it. 4.
Refitting 1. Slide the replacement reciter into the subrack and secure it with the retaining clamp. 2. Reconnect all the front and rear panel cables previously disconnected. Ensure the front panel cables are positioned correctly, and retained where required by the cable retaining clips in the top of the subrack (refer to “Appendix B – Inter-Module Connections” on page 114). 3. Tighten the nut on the SMA connector to a torque of 5lbf·in (0.6N·m). 4.
8.4 Replacing a Power Amplifier Notice Before removing a PA, disconnect the DC input and RF input first, followed by the RF output. After refitting the PA, reconnect the RF output first, followed by the RF input, and then the DC input. Removal 1. If you have not already done so, carry out the instructions in “Preliminary Disassembly” on page 102. 2. At the front of the PA, unplug the DC input cable b and the RF input cable c, and move both cables to one side.
6. Carry out the instructions in “Final Reassembly” on page 111.
8.5 Replacing a Power Management Unit Notice You must disconnect the AC and DC power cables before removing the PMU from the subrack. Removal 1. If you have not already done so, carry out the instructions in “Preliminary Disassembly” on page 102. 2. At the front of the PMU, unplug and remove the output power cable b to the subrack interconnect board. Also unplug and remove the system control bus cable c. 3. Unplug the output power cable to the PA d and move it to one side. 4.
8.6 Replacing the Module Guide Rails The module guide rails are held in place by four hooks that fit through the slots in the top and bottom of the subrack. There is also a locking tab which prevents the guide rails from working loose. Notice Subracks produced from late 2008 onwards have wider slots than earlier subracks. Guide rails designed for these wider slots will not fit older subracks with narrow slots. Removal 1. Bottom Guide Rails a.
8.7 Replacing the Subrack Interconnect Board Removal Refitting Figure 8.1 1. If you have not already done so, carry out the instructions in “Preliminary Disassembly” on page 102. 2. Disconnect any system control bus cables and DC power cables from the subrack board. 3. Remove the three M3 nuts and spring washers b securing the right end of the board to the subrack. 4. Remove the D-range cover c. 5. Remove the two retaining clamps d securing the left end and centre of the board. 6.
8.8 Final Reassembly Notice You must refit the correct type of front panel to your base station. There are several small but important differences between the front panel for a 50W base station and the front panel for a 100W base station. These differences are in the duct for the PA fan and are described in the following paragraphs. 50W Front Panel The PA fan duct does not have the cut-outs b required for the 100W PA RF and DC cables.
1. Before fitting the front panel, ensure that all cables are secured and positioned correctly so they are clear of the fan ducts (refer to “Appendix B – Inter-Module Connections” on page 114). Otherwise the panel may not fit properly, or you may damage the cables. 2. In 50W base stations, check that the airflow separator is fitted correctly. 3. Refit the Front Panel a. Ensure that the fasteners b are in the unlocked position. b. Fit the front panel onto the locating pegs on the subrack. c.
Appendix A – Interface Pin Allocations System Interface Connector For the pin allocations for the system interface D-range connector, see “Connecting General Purpose Inputs and Outputs” on page 96.
Appendix B – Inter-Module Connections Dual 50W Base Station The connections between modules at the front of a dual 50W base station are shown below.
Single 50W Base Station The connections between modules at the front of a single 50W base station are shown below. Single 50W base station inter-module connections b c i d h h PMU b c d e PA 28VDC output for PA not used RF input from reciter 28VDC input cable from PMU DC Supply e f g h i g f reciter system control bus and 28VDC input RF output to PA system control bus 28VDC output to subrack interconnect board The PA is powered by a direct connection from the PMU.
100W Base Station The connections between modules at the front of a 100W base station are shown below. 100W base station inter-module connections b c h g PMU b c d e e d PA 28VDC output for PA not used system control bus and 28VDC input reciter f g h RF input from reciter system control bus 28VDC output to subrack interconnect board RF output to PA DC Supply 116 f The PA is powered by a direct connection from the PMU.
Glossary This glossary contains an alphabetical list of terms and abbreviations related to the TaitNet network and the TB9300 base station. AAA protocols AAA commonly stands for Authentication, Authorization and Accounting. It refers to an IP-based security architecture that allows centralized, controlled access to devices in a network. ADC Analog-to-Digital Converter. A device for converting an analog signal to a digital signal that represents the same information.
call A complete exchange of information between two or more parties. A call requires a receive signal path and a transmit signal path. In conventional systems, a call is an over, but in trunked systems, a call may be a conversation, made up of a number of overs. channel 1. A path through which signals can flow. 2. In the RF domain, a frequency pair (or just a single frequency in a simplex system). Also called a physical channel in this manual. 3.
DDC Digital Down Converter. A device which converts the digitized IF signal of the receiver down to a lower frequency (complex baseband) to suit the DSP. dispatcher A person who gives official instructions by radio to one or more mobile stations. DMR Digital Mobile Radio. A set of standards and requirements endorsed by ETSI and intended for professional mobile radio (PMR) users. dotted quad A method for writing IPv4 addresses. The form is DDD.DDD.DDD.DDD where DDD is an 8-bit decimal number.
feature code The alphanumeric code used to identify a feature set. feature set A function or mode of operation of the base station which can be enabled or disabled using the web interface. Each feature set requires a license to be purchased from Tait before it can be enabled. feature license key The unique set of digits belonging to a license which is programmed into the base station to enable a feature set.
prevents the receiver gate from repeatedly muting and unmuting when the level varies around the trigger point. I2C A bi-directional two-wire serial bus which is used to connect integrated circuits (ICs). I2C is a multi-master bus, which means that multiple chips can be connected to the same bus, and each one can act as a master by initiating a data transfer. Used in the TB9300 for communications between each reciter and its associated PA, and between reciter 1 and the PMU.
the network it serves, and works by rewriting IP addresses and port numbers in IP headers on the fly so the packets all appear to be coming from (or going to) the single public IP address of the NAT device instead of the actual source or destination. network element Any device that is network-connected. A TaitNet digital network consists of a number of network elements. The TB9300 base station is a network element designed and manufactured by Tait.
QoS Quality Of Service. A router feature that gives real-time data such as voice calls priority over other data. reciter A module of a base station that provides both receiver and exciter functionality as well as the interface to the network. repeater talkaround Allows the MS to bypass repeater operation and so communicate directly with other mobile stations. While repeater talkaround is active, all transmissions are made on the receive frequency programmed for the channel.
simplex Able to provide transmission and reception in only one direction at a time. SINAD Signal plus Noise and Distortion is a measure of signal quality. It is the ratio of (signal + noise + distortion) to (noise + distortion). A SINAD of 12dB corresponds to a signal-to-noise ratio of 4:1. site 1. The base station equipment at a particular location. This includes power supplies, transmitters, receivers, network interfaces and controllers. 2. The location of that equipment.
TDMA Time Division Multiple Access. In the TB9300 each radio frequency provides two timeslots, with each timeslot representing one logical channel. TELCO Telephone company. TIA Telecommunications Industry Association toggle Describes the switching between two states. If something is on, toggling it turns it off. If it is off, toggling it turns it on. tone A sound wave of a particular frequency. Tx Transmitter. UDP User Datagram Protocol.
watchdog 126 Glossary A circuit that checks that the system is still responding. If the system does not respond (because the firmware has locked up), the circuit generally resets the system.
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solely in connection with Licensee's use of the Designated Products for the useful life of the Designated Products. This Agreement does not grant any rights to source code. 3.2. If the Software licensed under this Agreement contains or is derived from Open Source Software, the terms and conditions governing the use of such Open Source Software are in the Open Source Software Licenses of the copyright owner and not in this Agreement.
no representations or warranties with respect to any third-party software included in the Software. 6.2 Tait sole obligation to Licensee, and Licensee’s exclusive remedy under this warranty, is to use reasonable efforts to remedy any material Software defect covered by this warranty. These efforts will involve either replacing the media or attempting to correct significant, demonstrable program or documentation errors or Security Vulnerabilities.
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Directive 1999/5/EC Declaration of Conformity da Dansk fr Français Undertegnede Tait Limited erklærer herved, at følgende udstyr TBCB1D, TBCB1E, TBCH0D & TBCH0E overholder de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF. Se endvidere: www.taitradio.com/eudoc Par la présente, Tait Limited déclare que les appareils TBCB1D, TBCB1E, TBCH0D & TBCH0E sont conformes aux exigences essentielles et aux autres dispositions pertinentes de la directive 1999/5/CE. Voir aussi: www.taitradio.
