Radio Modem Box
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User Manual
Rev. 1.0 - 24/06/04
PTX LCD with amplifier
Alarm name
Threshold Delay time in seconds (0 = disabled)
FWD
50%
0
RFL
50%
0
External FWD 50%
15
External RFL
50%
15
Audio
-
10
Mains
-
10
START time (can only be set via RS232) = 60 seconds
Note on audio alarm:
Delay time (10 sec.) is an arbitrary value, as the alarm depends on the width of sent
audio signal.
Normally, PTXLCD will go into a "NOAUDIO" state after audio signal has been missing
for about 5 minutes; if the problem persists after the delay time has elapsed (if greater
than zero), the alarm is triggered.
A missing audio signal is a signal generating a modulation lower than 15KHz.
Note on alarm thresholds:
All alarm thresholds are based on the maximum value the machine will allow.
Example:
PTX30LCD
FWD 100% = 30W RFL 100% = 3W
PTX100LCD
FWD 100% = 100W RFL 100% = 10W
PPJ1000 Ext.FWD 100% = 1000W Ext.RFL 100% = 100W
PPJ2000 Ext.FWD 100% = 2000W Ext.RFL 100% = 200W
This means that a 50% setting in FWD or in Ext.FWD will trigger an alarm when
power DROPS below 50% of MAXIMUM output, NOT of current setting.
Likewise, a 50% setting in RFL or in Ext.RFL will trigger an alarm when power RISES
above 50% of the MAXIMUM value allowed.
Alarm conditions
50% FWD
50% RFL
PTX30LCD
< 15W
> 1,5W
PTX100LCD
< 50W
> 5W
50% Ext.FWD 50% Ext.RFL
PPJ1000
< 500W
> 50W
PPJ2000
< 1000W
> 100W
