User's Manual

Manual 7-9415-1.4 Page 17TX RX Systems Inc. 08/31/06
61-65-50 UserMan page 17 of 24
day one represents yesterday and so on. The
logged data is stored in non-volatile memory and
will not be erased when the unit is powered down.
The average OLC attenuation used when the OLC
was active is given both for individual days and
over the entire past 100 days. The percentage of
time the OLC was active is also given for both indi-
vidual days and over the past 100 days. This
archived information will permit the creation of a
user signal profile to facilitate optimum system con-
figuration and performance.
This archive feature will allow you to see if the gain
of the unit is set too high or if there are transient
episodes of strong signals perhaps desensing
other channels being amplified by the booster.
Alarms
The system continuously monitors the current draw
and operating temperature of each amplifier as well
as the voltage level of the +12 and +24 VDC sup-
plies. If any of these parameters exceed normal
operating levels by a factory preset percentage the
system enters an alarm condition. Notification of an
alarm condition is provided by LED indicators and
Form-C contacts available via the alarm terminal
screws.
LED INDICATORS
There are LED indicators for each amplifier in the
system as well as the +12 and +24 VDC power
supply voltages. The LED indicators for the low-
level, mid-level, and half-gain low-level amplifiers
are located on the individual plug-in module. These
are tri-color LED’s with green representing NOR-
MAL operation, orange representing a WARNING
condition, and red indicating a FAULT. A warning
condition occurs when the current draw of the
amplifier exceeds nominal by +/- 20%. Fault condi-
tions occur when the current draw exceeds +/- 30%
or the amplifiers operating temperature exceeds
80° Celsius. The LED for the attenuator card is
green only and indicates DC power applied to the
card.
The LED indicators for the power amplifiers are
located on the display panel next to the menu
select buttons and are dual color LED’s. Green rep-
resents NORMAL operation while red indicates a
FAULT condition. Fault conditions occur when the
current draw exceeds 900 ma or falls below 200
ma. Also, whenever the amplifiers operating tem-
perature exceeds 95° Celsius. The power amplifi-
ers do not have a warning state.
The power supply LED indicators are located on
display panel next to the menu selection buttons
and are also dual color. Green representing normal
Signal
Generator
Zero
Reference
Spectrum
Analyzer
Gain
Sample
Sample
Test Po
rt
Test Port
Figure 8: Measuring signal booster gain.