Chapter 9. Q & A
9-2
Q6. Please tell me about the Alarm output. See page. 4-11.
When you receive Distress/Urgency DSC message, the alarm always goes off
but when you receive Routine and Safety DSC message, you can set up ON/OFF
by selecting [MENU] -> ALARM.
As for external alarm, it synchronously functions with alarm outputted from the
Transceiver unit and Remote stations. Distress/Urgency alarm will continue to
go off until you press [CANCEL] key. Safety and Routine alarm will
automatically stop after 2 minutes or until you press [CANCEL] key.
Note; The EXT ALM circuit on CPU board is changed to the normal close
from production in June 2006.
Q7. Can Carbon MIC be used in place Wing MIC? See page. 4-28.
Either Carbon MIC or Dynamic MIC can be used. However, setup with J5 on
CPU board will be necessary.
- Carbon MIC:
J5 -> Jumper between #2 and #3
- Dynamic MIC:
J5 -> Jumper #1 and #2
Q8. Can Remote Handset be used alone without Transceiver Handset on?
See page. 4-29.
Yes it can although setup that keeps HOOK signal on the Transceiver unit side
“ON HOOK” at all time is necessary. You will then have to make a jumper
connection between #1 and #2 on J15.
Q9. Does Remote Handset have to be wired in daisy chain?
See page. 4-26.
Communication between Remote station and Transceiver unit is carried out on
the basis of ID number set up for each Remote Handset. Either daisy chain
method or parallel wired connection from Junction Box etc, can be used. When
connecting Remote stations, terminate data line of the electrically farthest
Remote station.
Q10. Can VHF antenna be used together with CH70 WR antenna?
See page. 4-30.
It is operative. However, you cannot watch CH70 signal from continuously
working CH70 board during a transmission. Connect it with a coaxial cable
between J2 of CH70 RX board antenna inputting and J5 of TX/RX board. The
coaxial cable is Mini-pin assembly (1) L-420. (Supplied material: Code
000-151-748)
Q11. Is a Junction Box: IF-8810 necessary?
For example, if you can connect GPS data inputted to Transceiver unit to
[IEC-61162/REMOTE] port directly, IF-8810 is actually not necessary. However,
it becomes necessary if you want to connect it to Remote stations.
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