Tait TEL0061 Paging Transmitter User Manual T857 T859 Install A3 pages pd

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Document ID	269945
Application ID	qFAf+vY4gC4kwb6bEi8/CQ==
Document Description	PowerAmpInstall
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	13.27kB (165864 bits)
Date Submitted	2002-09-12 00:00:00
Date Available	2002-11-07 00:00:00
Creation Date	0000-00-00 00:00:00
Producing Software	Acrobat Distiller 3.0 for Windows
Document Lastmod	0000-00-00 00:00:00
Document Title	T857 & T859 Install A3 pages.pd.PDF

T858/859 Installation
M850-00
F3.1
T858/859 Installation
Top Rail
3.1
Rack Mounting
Caution:
RF Output
If you require continuous operation of the T858, leave the rack module
position immediately adjacent to the finned heatsink empty. There
should be adequate airflow over the fins at all times. Extra airflow can
be provided by fitting an auxiliary fan kit such as the T800-19-0010
(refer to the T800 Ancillary Equipment Service Manual or your nearest
Tait Dealer or Customer Service Organisation for more details).
RF Input
D-range
The T858 and T859 PAs are designed
for use in a standard 483mm rack frame
using Tait T800 Series II guide rails.
The guide rails are securely mounted to
the rack frame with front and rear
retaining screws, and the PA is secured
into the guide with two (T858) or four
(T859) front panel mounting screws.
Figure 3.1 shows the standard, double
width guide designed for use with the
T859, while Figure 3.3 shows how the
PA can be latched in the extended position. For more information on available guide kits, refer to the T800
Ancillary Equipment Service Manual
or your nearest Tait Dealer or Customer
Service Organisation.
Bottom Rail
Rack Mounting
Holes
Figure 3.3 T858/859 PA In Latched Position
Front Panel
Mounting Holes
Note:
You will need appropriate extension leads if you wish to carry out any
adjustment procedures with the PA withdrawn from the rack in the latched
position. Alternatively, disconnect and withdraw the PA and reconnect it
behind the rack.
3.2
Rack Wiring
Rack Mounting
Holes
Rack Mounting Holes
Figure 3.1 T800-45-0001 PA Guide Kit
The D-range input and output connections are shown in Figure 3.4. Ensure that the
cables are not subjected to any stresses due to tight bends or incorrect lengths.
The PA rear panel has three connectors: a BNC for RF input (from an adjacent T857
exciter), an N-type for RF output and a D-range for all DC, audio and control connections (refer to Figure 3.2).
Make sure the RF coax cables to the N-type and BNC connectors are free from sharp
bends or twists. If access to the rear of the rack frame is restricted, the cables should be
long enough to allow the chassis to be fully withdrawn from the guide.
T858
10.8 to 16V DC
+13.8V
T859
10
Pull low to enable
alarm outputs
11
Tx Key
12
13
N-Type Connector
14
BNC Connector
15
D-Range Connector
N-Type Connector
Gnd
Normally low, float
on alarm conditions.
500mA sink capability.
Forward Power Alarm
Reverse Power Alarm
Forward Power Metering
Reverse Power Metering
Will drive a coil meter
Power supply, -ve earth
BNC Connector
D-Range Connector
Figure 3.4 T858/859 D-Range Wiring - Rear View
Figure 3.2 T858/859 Chassis Connectors
Copyright TEL
31/01/99
F3.2
T858/859 Installation
3.3
Power Supply
M850-00
If a power supply other than an appropriate Tait model is used, ensure that it is capable
of providing enough current to drive the T800 system and is also free from excessive
ripple or noise.
The system should be protected by the use of appropriately rated fuses in the power
supply.
Note:
Caution:
3.4
It is particularly important when the prime power source is a battery that
fuses be employed in all supply lines.
Connect the power supply directly to the PA, and not via connector
blocks. This will avoid overheating of connector blocks that are not of
the correct current rating.
Reverse Polarity & Overvoltage Protection
A crowbar diode is fitted to all T858/859 PAs for protection against connection to a
power supply of incorrect polarity. It also provides overvoltage protection from voltage
transients caused by lightning strikes.
Note:
29/02/00
A fuse must be fitted in the power supply line for the diode to provide effective protection.
Copyright TEL

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Title                           : T857 & T859 Install A3 pages.pd.PDF

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