JRC JCY-1800 Instruction Manual page 61

4.6.3.2. Radar Selection TAB screen
4.6.3.2.1. Select signal
When two radars are connected and VDR/S-VDR record one of two radar images by switching, set
switching signal.
1) Dry contact
Select the "Dry contact", when recording channel is switched by dry contact signals outputted from a switcher.
2) NMEA
Select the "NMEA", when recording channel is switched by the PJRC sentence outputted from the JRC radar.
3) None (Auto)
Select the "None", when the switching signal is not connected.
Recording channel is switched by detecting a RGB signal.
When radar images are received from both channels, the CH1 image is recorded.
4.6.3.2.2. NMEA
Sensor channel which receives a PJRC sentence for switching is set up automatically.
Confirm that a Radar connection channel is displayed.
4.6.3.2.3. Dry Contact
Select the logic of the dry contact which is outputted by a switcher.
AUTO mode is selected when both of dry contact signals are the same logic.
Logic table of dry contact
PI_1
OPEN
OPEN
CLOSE
CLOSE
* The switcher is not an optional unit of VDR/S-VDR.
JCY-1800/1850 VDR/S-VDR Maintenance Software Instruction Manual
PI_2 MODE
OPEN AUTO
CLOSE CH1 record
OPEN CH2 record
CLOSE -
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4. Installation, Setup and Check
PI_1
PI_2
the
DOC No. 7ZPNA4014