Testing Hardware Channel Selection - Tait TB8100 User Manual

Miscellaneous Tests
TB8100 Service Kit User's Manual
A digital input can be active
inputs can be configured as channel select lines. The Channel box indicates the
channel number that they currently select and the text to the right indicates the
number of bits (lines) involved and their logic settings.
To test a digital input
1. Select Diagnose > Reciter > Digital I/O.
2. Using the equipment connected to the digital input, toggle the state of that
input.
3. In the Digital inputs area, check that the state of that input changed.

Testing Hardware Channel Selection

If the channel that the base station operates on is to be selected by an external
channel switch, you can verify that the base station correctly interprets the
switch's channel selection.
1. Select Diagnose > Reciter > Digital I/O.
2. Using the channel switch, select a channel.
3. In the Channel switch area, check that the expected channel number
appears.
4. If there is a discrepancy, follow these steps:
a. Check the DIP switch settings against the binary channel number
displayed.
b. Check that the correct channel selection option (Binary, BCD, or
invert) is displayed. If not, select the correct option in Configure > Base
Station > System Interface: Channel selection area.
The Misc I/O form (Diagnose > Reciter > Misc I/O) lets you test the RSSI
output and send a test email.
RSSI Tests
In the Misc I/O form, the RSSI output area lets you carry out tests on the RSSI
output. You can:
provide a defined RSSI voltage output so that you can test equipment that
is connected to the base station.
specify a received signal strength in dBm and test the base station's
conversion of the measured signal strength into an output voltage. You can
use this test to convert an RSSI voltage to received dBm or vice versa.
(red LED) or inactive (gray LED). Many of these
Reciter Tests 157