7 Connection Once the TB8100 BSS hardware is installed, you need to connect the individual modules to each other, and to any ancillary equipment required in your system. This chapter provides information on all the inputs and outputs available on the TB8100 BSS. 7.1 Overview of Inputs and Outputs This section identifies the main input and output connections for the TB8100 BSS. ■ Figure 7.1 on page 100 identifies the connections at the front of a dual base station, and Figure 7.
Figure 7.
Figure 7.
Figure 7.
Figure 7.4 Single 5W or 50W base station inputs and outputs - rear view b c 1) j d i h reciter b c d e f e system interface connector external reference frequency input RF output (to antenna) –VDC input +VDC input PA g h i j 1) f g PMU auxiliary DC output AC mains input RF input (from antenna) auxiliary DC input for system interfacea subrack ground connector a.
Figure 7.5 Single 5W or 50W 12V PA base station inputs and outputs - rear view b c i j d h reciter b c d e f e RS-232 connector external reference frequency input auxiliary DC input for system interface RF output (to antenna) f g reciter shown with TaitNet RS-232 system interface board PA g h i j Power Saving control input RF input (from antenna) TaitNet system interface connector subrack ground connector 12VDC input Figure 7.
Figure 7.7 Dual base station control panel inputs and outputs c b d b DC outputs for fans mounted on front panel; also used for fan rotation detectors (if fitted) c microphone connector Note Figure 7.8 d RS-232 programming port The microphone input feeds simultaneously to both base station 1 and base station 2. However, the PTT can only be used on the currently selected base station. The RS-232 connection is only to the reciter on the currently selected base station.
7.2 Power Supply Connections 7.2.1 AC Power The TB8100 PMU is designed to accept a mains input of 88 to 264VAC at 45 to 65Hz. We recommend that a standard 3-wire grounded outlet is used to supply the AC power. The socket-outlet must be installed near the equipment and must be easily accessible. This outlet should be connected to an AC power supply capable of providing a maximum of 600W. The requirements of two typical AC supplies are given in the following table.
below. The DC input leads should be of a suitable gauge to ensure less than 0.2V drop at maximum load over the required length of lead. Nominal Supply Voltage Input Voltage Range Circuit Breaker/ Fuse Rating Recommended Wire Gaugea 12VDC 10VDC to 16.8VDC 60A 2AWG / 35mm2 24VDC 20VDC to 33.6VDC 30A 5AWG / 16mm2 48VDC 40VDC to 60VDC 15A 8AWG / 8mm2 a. For a length of 1.5m to 2m (5ft to 6.5ft) (typical).
7.2.3 Auxiliary DC Power PMU Auxiliary DC Output The PMU can provide an auxiliary DC output when it is fitted with the optional 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 optional power supply is available on the auxiliary DC output connector b on the rear panel.
Two different types of auxiliary DC output connector have been fitted to the PMU. The pin allocations for the 8-way connector fitted to PMUs manufactured before August 2004 are given in the following table. Note that pins 1 to 4 and pins 5 to 8 on this connector are linked.
Pin 3 1 4 2 4-way connector - external view Description 1 +V input 2 ground 3 +V input 4 ground Links 2 1 2-way connector - external view The DC output from the PMU is 13.65VDC, 27.3VDC, or 54.6VDC (depending on the model). Although this power output is isolated, the negative side of the supply is grounded on the system interface board to give a +V output. Auxiliary DC Power Supply Connections Figure 7.11 below shows the standard Tait auxiliary DC power cables available.
Note that the PMU connector used in the TBA2241 and TBA2242 cables was changed in August 2004 to match the change of connector in the PMU. The old cables are still available under Tait part numbers 219-02895-00 (single) and 219-02896-00 (double). Contact your nearest Tait Dealer or Customer Service Organisation for details on the full range of wiring kits available. 7.3 RF Connections RF Input and Output The RF input to the TB8100 BSS is via the lower BNC/TNC connector on the rear panel of the reciter.
7.4 System Connections The reciter can be fitted with an optional system interface board which provides the links between the reciter’s internal circuitry and external equipment. This board is securely mounted to the reciter’s chassis and is connected to the digital board with a flexible connector. The system interface board is fitted with industry-standard connectors and several standard types are available for different applications.
7.4.1 Digital Interface The system interface board provides several different types of digital interface connections. The type and number of connections available depends on the type of system interface board. These connections are described in “System Interface Connections” on page 114, and also in the Service Kit (Configure > Base Station > System Interface). For details on the interface levels for these connections refer to the Specifications Manual.
7.4.2 System Interface Connections The standard system interface board is fitted to reciters bearing the product code TBA4xxx-0A0x. If purchased separately, it has the product code TBA10A0. It provides the following: Standard ■ non-isolated 600: balanced audio I/O ■ Tx key ■ high impedance unbalanced audio I/O ■ Tx relay ■ digital I/O (2 outputs, 6 inputs, 4 bi-directional) ■ Rx gate ■ RSSI It is fitted with a 25-way female D-range connector and a 4-way auxiliary DC input connector.
This system interface board is fitted to reciters bearing the product code TBA4xxx-0B0x or TBA5xxx-0B0x. If purchased separately, it has the product code TBA10B0. It is the same as the standard model, except that the balanced audio interfaces are galvanically (transformer) isolated.
Isolated E&M This system interface board is fitted to reciters bearing the product code TBA4xxx-0C0x or TBA5xxx-0C0x. If purchased separately, it has the product code TBA10C0. It provides the following: ■ transformer isolated 600: balanced audio I/O ■ Tx key ■ opto-isolated keying ■ Tx relay ■ opto-isolated gate output ■ Rx gate ■ digital I/O (2 outputs, 2 inputs, 4 bi-directional) ■ RSSI It is fitted with a 25-way female D-range connector and a 4-way auxiliary DC input connector.
This system interface board is fitted to reciters bearing the product code TBA4xxx-0T1x. If purchased separately, it has the product code TBA10T1. It is designed for use with MPT trunking systems. It provides the following: TaitNet ■ transformer isolated 600: balanced audio I/O ■ Tx key ■ high impedance unbalanced audio I/O ■ Rx gate ■ digital I/O (3 outputs, 1 input) It is fitted with a 15-way female D-range connector and a 4-way auxiliary DC input connector.
TaitNet RS-232 This system interface board is fitted to reciters bearing the product code TBA4xxx-0L0x or TBA5xxx-0L0x. If purchased separately, it has the product code TBA10L0. It is designed for use with MPT trunking systems, and also for use with multiple base station systems.
port switch) and modem or radio modem. Refer to TN-906 for more details on using an APS with TB8100 base stations. 7.5 Service Kit Connections The TB8100 Service Kit is connected to the BSS via the RS-232 serial port on the control panel. This port is a 9-way female D-range connector. Use a straight through cable, as supplied with the Service Kit, to connect your programming computer to the BSS. The pin allocations for the serial port are given in the following table.
7.6 Microphone Connection You can connect a microphone to the TB8100 BSS via the standard RJ45 socket on the control panel. If a standard TB8100 microphone has not been supplied with your BSS, you should use an electret microphone. The pin allocations for the microphone socket are given in the following table. Pin 12 345678 external view 7.
Method 2 1. Connect one end of the Power Saving control cable b to the Power Saving control connector c at the rear of the PA. 2. Cut the socket off the other end of the cable. Connect the wires directly to the D-range plug fitted to the system interface connector e as follows: ■ red - digital out 1 ■ black - ground. Figure 7.
122 Connection TB8100 Installation and Operation Manual © Tait Electronics Limited March 2005