Tait TBA9K2, TBA H0, TBA7K2, TBA8K2 Users Manual

6 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.
This section identifies the main input and output connections for the TB8100 BSS. Figure 6.1 below identifies the connections at the front of a dual base station, and Figure 6.3 on page 57 identifies those at the rear.
Figure 6.2 on page 56 identifies the connections at the front of a single
100W base station. Figure 6.4 on page 57 identifies the connections on the control panel. Refer to the following sections in this chapter for more details on these connections.
Figure 6.1 Dual 5 or 50W Base Station Inputs and Outputs - Front View
bcd e ghfgh
ddidiefd
PA 1 PA 2 reciter 2PMU
reciter 1
28VDC high current output for PA
b
28VDC low current output for reciter
c
system control bus
d
RF input from reciter
e
TB8100 Installation and Operation Manual Connection 55 © Tait Electronics Ltd June 2003
28VDC high current input cable from PMU
f
RF output to PA
g
28VDC low current input from PMU
h
DC output (for optional reciter fan only)
i
Figure 6.2 Single 100W Base Station Inputs and Outputs - Front View
bc de
hfgfi
PMU
28VDC high current output for PA
b
28VDC low current output for reciter
c
RF output to PA
d
28VDC low current input from PMU
e
PA re citer
system control bus
f
DC output (for optional reciter fan only)
g
28VDC high current input cable from PMU
h
RF input from reciter
i
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Figure 6.3 Dual 5 or 50W Base Station Inputs and Outputs - Rear View
bc d fe
1)
system interface connector
b
external reference frequency input
c
RF output
d
–VDC input
e
+VDC input
f
bc
higidjj
PA 1PA 2reciter 1reciter 2 PMU
auxiliary 12VDC output
g
AC mains input
h
RF input
i
auxiliary 12VDC input for system interface
j
subrack ground connector
1)
Figure 6.4 Control Panel Inputs and Outputs
c
b
d
DC outputs for fans mounted on front panel;
b
also used for fan rotation detectors (if fitted)
microphone connector
c
TB8100 Installation and Operation Manual Connection 57 © Tait Electronics Ltd June 2003
RS-232 programming port
d

6.2 Power Supply Connections

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.
Nominal Supply Current Requirement
115VAC 8A 10A
230VAC 4A 6A
Your TB8100 BSS should come supplied
Circuit Breaker/Fuse Rating
neutral
with a power supply cord to connect the male IEC connector on the PMU to the
ground
local AC supply. The pins of the IEC connector on the PMU are identified at right.
DC Power The TB8100 PMU is designed to accept a DC input of 10.3 to 15.5VDC
rear view
phase
with negative or positive ground. There is a minimum DC start-up 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 a rating of 60A. The DC input leads should be of a suitable gauge to ensure less than 0.2 V drop at maximum load over the required length of lead.
Terminate and insulate the DC input leads so they are protected from accidentally shorting to the subrack if the PMU is removed before the leads are disconnected.
Figure 6.5 Recommended DC Power Connection
Circuit Breaker
or Fuse
PMU
Battery
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Reciter Auxiliary DC Input
PMU Auxiliary DC Output
The system interface PCB in the reciter has an auxiliary DC input connector. DC from the auxiliary DC output on the PMU (see “PMU
Auxiliary DC Output” below) can be supplied to the +AUX_V pin on the
system interface connector via this input.
The pin allocations for the auxiliary DC input on the system interface PCB are given in the following table. Note that pins 1 & 3 and pins 2 & 4 on this connector are linked. Refer to “System Connections” on page 60 for the pin allocations for +AUX_V on each system interface PCB.
Pin Description Links
1+V input
123
4
rear view
2 ground
3+V input
4 ground
The DC output from the PMU is 12VDC. Although this power output is isolated, the negative side of the supply is grounded on the system interface PCB to give a +V output.
The PMU can provide an auxiliary DC output when it is fitted with the optional 40W auxiliary power supply PCB. This power supply is current limited to 3A and is available on the auxiliary DC output connector on the rear panel. DC from this output can be supplied to the +AUX_V pin on the system interface connector on the reciter via the auxiliary DC input connector on the system interface PCB (see “Reciter Auxiliary DC Input” above).
The pin allocations for the auxiliary DC output on the PMU are given in the following table. Note that pins 1 to 4 and pins 5 to 8 on this connector are linked.
Pin Description Links
1 +V output
2 +V output
5
rear view
1 26 37 48
3 +V output
4 +V output
5 ground
6 ground
7 ground
8 ground
TB8100 Installation and Operation Manual Connection 59 © Tait Electronics Ltd June 2003

6.3 RF Connections

The RF input to the TB8100 BSS is via the lower 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 6.3 on page 57).
We recommend that you use dual-screened coaxial cable such as RG223 for the BNC connections, and RG214 for the N-type connections.

6.4 System Connections

The reciter can be fitted with an optional system interface PCB which provides the links between the reciter’s internal circuitry and external equipment. This PCB is securely mounted to the reciter’s chassis and is connected to the control PCB with a flexible connector. The system interface PCB is fitted with industry-standard connectors and several standard types are available for different applications.
The circuitry on the system interface PCB provides additional signal processing so that the outputs meet standard system requirements. It also enables the PCB to identify itself to the reciter control circuitry.
The system interface PCB is removable, which makes it possible to change the application of a reciter by removing one type of PCB and fitting another. Only one system interface PCB can be fitted to a reciter at any one time.
This section provides details on the system interface PCBs available at the time of publication. Other types may be developed for future applications.
Figure 6.6 System Interface PCB
system interface PCB*
control PCB
*standard system interface PCB shown
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Standard
B C D E F G H I J
1) 1! 1@ 1#
rear view
1$ 1% 1^ 1& 1* 1(
2) 2! 2@ 2# 2$ 2%
The standard system interface PCB is fitted to reciters bearing the product code TBA4xxx-0A0x or TBA5xxx-0A0x. If purchased separately, it has the product code TBA10A0. It provides:
non-isolated 600 balanced audio I/O
high impedance unbalanced audio I/O
Tx key
Rx gate
RSSI
Tx relay
digital I/O.
It is fitted with a 25-way female D-range connector and an auxiliary DC input connector. The pin allocations are listed in the table below.
Pin Signal Name Signal Type Notes
1 Rx line out +
2 Rx line out –
3 Rx audio out audio output AC coupled
4 ground ground
5 Tx audio in audio input AC coupled
6 Tx line in +
7 Tx line in –
8 RSSI DC signal
9 Rx gate output open collector
10 Tx key input
11 digital out 1
12 digital out 2
13 +AUX_V power output
14 digital in 1
15 digital in 2
16 digital in 3
17 digital in 4
18 digital in 5
19 digital in 6
20 digital in 7
21 digital in 8
22 digital in 9
23 digital in 10
24 Tx relay output open collector
25 ground ground
audio output
audio input AC coupled line
output open collector
input 5V logic
non-isolated AC coupled line
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Isolated
This system interface PCB 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 isolated.
Isolated E&M This system interface PCB is fitted to reciters bearing the product code
TBA4xxx-0C0x or TBA5xxx-0C0x. If purchased separately, it has the product code TBA10C0. It provides:
isolated balanced audio I/O
opto-isolated keying
opto-isolated gate output.
It is fitted with a 25-way female D-range connector and an auxiliary DC input connector. The pin allocations are listed in the table below.
Pin Signal Name Signal Type Notes
B C D E F G H I J
1) 1! 1@ 1#
rear view
1$ 1% 1^ 1& 1* 1(
2) 2! 2@ 2# 2$ 2%
1 Rx line out +
2 Rx line out –
3 Rx audio out audio output
4 audio ground ground
5 Tx audio in audio input
6 Tx line in +
7 Tx line in –
8 RSSI DC signal
9 Rx gate output open collector
10 Tx key input
11 digital out 1
12 digital out 2
13 +AUX_V power output
14 digital in 1
15 digital in 2
16 digital in 3
17 digital in 4
18 digital in 5
19 digital in 6
20 opto +/–
21 opto –/+
22 relay +/–
23 relay –/+
24 Tx relay output open collector
25 ground ground
audio output transformer isolated line
audio input transformer isolated line
output open collector
input 5V logic
isolated keying input
isolated gate output
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Ta it N et
B C D E F G H I
rear view
J
1) 1! 1@ 1# 1$ 1%
This system interface PCB is fitted to reciters bearing the product code TBA4xxx-0T1x or TBA5xxx-0T1x. If purchased separately, it has the product code TBA10T1. It is designed for use with MPT trunking systems. It is fitted with a 15-way female D-range connector and an auxiliary DC input connector. The pin allocations are listed in the table below.
Pin Signal Name Signal Type Notes
1 Rx line out +
2 Rx line out –
3 Rx audio out audio output
4 Rx gate output open collector
5 Tx key input
6 Tx audio in audio input
7 Tx line in +
8 Tx line in –
9 +AUX_V power output
10 digital out 3 output open collector
11 no connection
12 digital out 1
13 digital out 2
14 digital in 1 input 5V logic
15 ground ground
audio output AC coupled line
audio input AC coupled line
output open collector

6.5 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. Note that pins 1, 4 & 6 and pins 7 & 8 are linked. This port is also used for remote connection to the Service Kit or Alarm Center software via a modem or radio modem.
b
cdef
hj
gi
front view
Pin Description Links
1 not connected
2receive data
3 transmit data
4 not connected
5 ground
6 not connected
7 not connected
8 not connected
9 not connected
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6.6 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.
12345678
front view
Pin Description
1 not connected
2 not connected
3 not connected
4 PTT and hookswitch
5 voice band (microphone) input
6 microphone ground
7 not connected
8 not connected
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