Nera Inmarsat-c Service Manual page 37

7) Handling of Alarm
Table 2.3.4 lists the alarm output.
TLX/E-mail
Unit
reception
IC-215 Output
IC-305 Not output
IC-306 Output
Table 2.3.5 lists the difference of the alarm between IC-305 and IC-306.
Unit
Normal
IC-305
Distress button: ON
(Distress
Distress activates
button)
Receiving Distress ACK
Normal
ALM ACK switch: ON
IC-305
EGC: After receiving DIS and
(ALM ACK
URG priority message
button)
EGC: After receiving DIS and
URG priority message
ALM ACK Switch: ON
Normal
ALM RESET switch: ON
IC-306
After receiving the message
(ALM
After receiving the message
RESET
ALM RESET switch: ON
button)
Detected the error
After detected the error
ALM RESET Switch: ON
EGC message reception
DIS ACK
reception
DIS
Output Output
Output Output
Not output Not output
Table 2.3.5 Difference of the alarm between IC-305 and IC-306
Status
see note)
2-17
Category
URG following to
SAF
Output Not output
Output Not output
Not output Not output
LED
Lights out
ON/OFF every 100ms
Lighting
1.2S ON, 0.3S OFF
Lights out
ON while pressing
1.2S ON, 0.3S OFF
0.1S ON, 1.9S OFF
Lights out
ON while pressing
1S ON, 2S OFF
Lights out
1S ON, 2S OFF
0.1S ON, 1.9S OFF
2.3 Terminal unit, IC-215
Table 2.3.4 Alarm output
Alarm when
detecting
"TROUBLE"
Output
Not output
Output
Buzzer
OFF
ON/OFF every 100ms
ON
1.2S ON, 0.3S OFF
OFF
ON while pressing
1.2S ON, 0.3S OFF
0.1S ON, 1.9S OFF
OFF
ON while pressing
1S ON, 2S OFF
OFF
1S ON, 2S OFF
0.1S ON, 1.9S OFF