JRC JCY-1800 Installation Manual page 84

4. Cabling
JCY-1800/1850 VDR/S-VDR Installation Guide
4.2.12. Recording Control Unit NDV-1800/1850 – External Alarm Lamp
Connect the RCU to the External Alarm Lamp, which is incorporated into the External Alarm Console.
- Connecting the two lines [A]-[C]: Normal open contact
- Connecting the two lines [B]-[C]: Normal close contact
Once an alarm is detected in the VDR, the alarm status is displayed. When everything has been restored,
the normal status is displayed.
Connection table for External Alarm Lamp:
RCU
Term #
CQD-2040
TB406
ERROR
3 [A]
4 [C]
5 [B]
Cable Specification
4.2.13. Recording Control Unit NDV-1800/1850 – External Alarm Buzzer
Connect the RCU to the External Alarm Buzzer, which is incorporated into the External Alarm
Console.
- Connecting the two lines [A]-[C]: Normal open contact
- Connecting the two lines [B]-[C]: Normal close contact
Once an alarm is detected in the VDR, the alarm status is displayed. Press the [ACK] switch, and the
normal status is displayed.
Connection table for External Alarm Buzzer:
RCU
Term #
CQD-2040
TB406
ALARM
6 [A]
7 [C]
8 [B]
Cable Specification
DOC No. 7ZPJD0387C
External Alarm Console
2 (wires) x 0.75 mm
External Alarm Console
2 (wires) x 0.75 mm
74
Remarks
Normal Open Contact
Common
Normal close Contact
2
Remarks
Normal Open Contact
Common
Normal close Contact
2