46131-0598 <90-00018>
P
AGE
29
A
LARM
A
CKNOWLEDGEMENT
Press button 4 to acknowledge alarms and reset the
change-of-status (COS) relay to the non-alarm mode. “AuCLr”
appears on the display.
P
ORT
A
CTIVITY
Button 2 shows the activity of the interrogator and responder
ports on the LED display. Press the button repeatedly to cycle
through the ports sequentially to the port desired. The LED
display shows the activity of the selected port. To return to the
alarm mode, press button 1.
Interrogator Ports
The LED display shows the letter “P” on the first LED and the
number of the interrogator port on the second LED. The fourth
LED flashes the letter “t” when the port is transmitting data.
The fifth LED flashes the letter “r” when the port is receiving
data.
Responder Ports
The LED display shows the letter “r” on the first LED and the
number of the responder port on the second LED. The fourth
LED flashes the letter “t” when the port is transmitting data.
The fifth LED flashes the letter “r” when the port is receiving
data.
H
AND
-H
ELD
P
ROGRAMMING
P
ADDLE
OR
T
ERMINAL
S
ELECT
Button 5 selects the method used to configure the APU. If a
programming paddle will be used, press the button until the
LED display shows “Pad”. Press the button until the LED
display shows “Crt” if a dumb terminal will be used. When the
button is released, the LED display returns to the alarm mode.
S
YSTEM
R
ESET
Press buttons 1, 3, and 5 simultaneously.
LED T
EST
Press buttons 1 and 3 simultaneously. All “8”s appear on the
LED display if all the segments are working.
OPERATION
UPDATED
