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Electronics housing
The electronics housing contains the
microprocessor, battery, power connection
terminals, data connection points and the
user interface for the RCU. The RCU has a
simple user interface for operations and
maintenance purposes. The RCU front panel
is shown in Figures 5 and 6. It has a number
of LED indictors. The LEDs are normally off
(to reduce power consumption) and turn on
automatically while the door is open as
controlled by the position of the door
switch.
After connection of a power supply, the
operator uses toggle switches to turn the
RCU "ON". The LED indicator display panel
provides feedback to the operator as to the
function of the RCU and the connections
among RCU, Fusesavers and the SCADA
system.
Item
Description
Green light ON - power source (solar or
A
auxiliary power) providing power.
Light OFF - no incoming power.
Green light ON - battery is OK.
B
Light OFF - battery off or disconnected.
Red light ON - battery needs replacing.
Green light ON - Fusesavers OK.
Green light flashing - searching for
C
Fusesavers.
Red light ON - Fusesaver configuration or
communication problem.
Green light ON - remote control OFF.
D
Red light ON - remote control ON.
Green light ON or OFF - microprocessor
E
problem.
Green light flashing - microprocessor OK.
Green light ON - Ethernet connected.
F
Red light flashing - network traffic.
Green light flashing - SCADA message
G
received.
Red light flashing - SCADA message sent.
Figure 6: LED indicator display
A
Item
Description
A
Door switch
B
LED display
C
Connector covers
D
Toggle switches
Figure 5: Electronics housing
A
B
C
D
E
B
H
C
G
D
Item
E
USB, Ethernet, lineman, operator panel and
F
radio-interface connectors
G
Power supply and ground (earth) connection
H
F
Description
Battery
Battery fuse
E
F
G
11
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