Other Operational Tests; Installing The Base Station On Site; Equipment Required - Tait TB9100 Installation And Operation Manual

Other Operational Tests

Task
Listen to the analog line output
Monitor the analog line output
Provide test inputs on the analog line
Key the transmitter via the E-line
Check the status of the M-line
Monitor the digital output
Turn digital inputs on and off
Test receiver operation in analog mode
3.5

Installing the Base Station on Site

Equipment Required

TB9100/P25 CG Installation and Operation Manual
© Tait Electronics Limited January 2007
If the base station passes this test, its modulation fidelity in digital P25 mode
is very likely to be within specification. If it fails the test, use the Calibration
Software to carry out an FCL and a VCO calibration. If it still fails the test,
return it to a Tait service center.
The CTU can assist you to carry out the following additional tasks to
exercise the base station on the bench.
Instructions
Turn the switch to 'BALANCED' and adjust the speaker volume.
Connect test equipment to the LINE OUTPUT.
Connect test equipment to the LINE INPUT.
Turn the TX KEY switch to ON. Alternatively, connect a cable to the
TX KEY and GND banana sockets and short the cable. (The E-line
must be configured to key the transmitter using the CSS).
View the RX GATE LED. When it is lit, the M-line is low (active).
Connect test equipment to the RSSI.
Switch the DIGITAL INPUTS* 1-4 between OFF and ON. If you have
set up Task Manager actions with the digital input value as the
input, you can check that the base station responds as expected.
* NB The TB9100 digital inputs 0-3 are numbered 1-4 on the CTU,
and for the TB9100 digital input 4, short the TX RELAY to GND.
Connect NOISE to the reciter's RF input. Turn the NOISE switch to
ON. Alternatively, connect RF test equipment and use it.
It is beyond the scope of this manual to list every piece of equipment that
an installation technician should carry. However, the following tools are
specifically required for installing the TB9100 base station:
Pozidriv PZ3 screwdriver for the M6 screws used in the DC input
■
terminals on the PMU; M6 (0.25in) screws are also used to secure the
subrack to the cabinet in factory-assembled systems
Pozidriv PZ2 screwdriver for the M4 screws used to secure the module
■
retaining clamps
0.25in or 6mm flat blade screwdriver for the fasteners used to secure the
■
front panel to the subrack
Installation 47