JRC JMA-993-SA Instruction Manual page 330

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3. REFERENCES
Time after Pattern
After switching over the InterSwitch patterns, it is necessary to wait for the time as
mentioned below because the pre-heat time is different from the previous
interconnection between the MTR and the display unit. This measure is taken for
protecting the electronic tube emitting radar pulses.
(a) Not changed to the new interconnection condition:..
.No preheat
time
(b) Changed to the new interconnection condition.
Ho w e ve r , t h e M T R w a s u se d b e for e chan ge:. ..... ..... ..... ..... .... ..................3
seconds
(c) Changed to the new interconnection condition.
Ho w e ve r, t h e M T R w a s u se d b e for e chan ge:. ..... ..... ..... ..... .... ...................
minutes
on Pattern
lmmediately after switching over the patterns, the try to select another pattern may fail.
This means that even lf the pattem switchover is completed, it takes some time to
prepare for the next InterSwitch operation. In this case, "lSW BUSY" will be indicated in
the message area on the display lower right, and the InterSwitch operation is not
available.
arm Sound
The lnterSwitch alarm continues lo sound for about 5 seconds. In setting the alarm sound
level, open the Subl Menu, press [2] switch to select the "S.BUZZER" in LEVEL Menu.
When stopping the alarm sound immediately after it sounds, press [ALARM ACK] switch.
Even when lhe alarm sound stops, a certain message will remain in the message area.
on Master/Slave
The Master/Slave connection is a configuration in which the Display Unit connected to the
Scanner Unit is the Masier Unit, while the Display Unit connected to the Master Unit is a
Slave Unit. Of the InterSwitch patterns, the following pattem numbers includes the
Master/Slave connection:
a) 2-unit System: No.3, No.4, No.5 and No.6
b) 3-unit System: No.4, No.S, No.6, No.7, No.8, No.9, No.10 and No.11
lf the Master Display Unit is noi in the transmission state, it is impossible to set the Slave
Display Unit to the transmission state, lf the Master Display Unit is changed from the
transmission to the standby mode, the Slave Display Unit will also be set to the standby
mode forcibly. In this status, "MTR ST-BY'will be indicated in the message area and the
alarm will beep.
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