User manual
Control Unit and RTU Installation Procedure
Document Number: ECP 05-9531
Version: 2.0
Date: 03/09/2014
© UK Power Networks 2014 All rights reserved 17 of 29
A.3 Lucy Gemini
The Gemini has remote control facilities for up to three switches or circuit-breakers (or a
mixture of both). Each switch to be controlled needs an umbilical cable connection to the
Gemini. The cabinet layout is shown below. For further information refer to the relevant
commissioning procedure.
Modem
Identification
Label
RTU
(Inner Box)
Control
Panel
Battery
Communications
and Configuration
Ports
Optional
Expansion Module
(FPI2 and FPI3)
Mains Supply and
Isolation
Power Supply Unit
Local/Remote
Switch