2. WIRING
2-13
2.3 Junction Box VR-7022F
To connect the float-free data recording unit VR-7021F to the DCU, use the junction
box VR-7022F.
For configurations that use the VR-7020, the installation procedures outlined in this
section and section 1.3 are not required.
1. Remove four screws to remove the cover from the junction box.
2. Unfasten three cable glands, then pass each cable through the cable entrance.
3. Fabricate the cables.
• DPYCY-1.5 cable
LED Storage Power Docking Power Storage Com VDR system Com
ON Power is supplied
to the storage
module.
Power is supplied
to the docking
module.
The storage mod-
ule is connected
to the docking
module, but com-
munication is not
established.
The DCU is con-
nected to the dock-
ing module, but
communication is
not established.
OFF Power is not sup-
plied to the stor-
age module.
Power is not sup-
plied to the dock-
ing module.
The storage mod-
ule is not con-
nected to the
docking module.
The DCU is not
connected to the
docking module.
Flash The watchdog is
activated.
The watchdog is
activated.
The storage mod-
ule is connected
to the docking
module and com-
munication is es-
tablished
correctly.
The DCU is con-
nected to the dock-
ing module and
communication is
established correct-
ly.
FR-FTPC-CY cable
DPYCY-1.5 cable
Float-free DRU cable
To the DCU (J312)
To the DCU (J21)
To the float-free DRU
Twist the wires.
Vinyl tape (width: 10)
Attach the crimp-on lug
to the armor.
8080
5050
Cable jacketCable jacket